American Audio DJ Equipment Q 2422 MKII User Manual

Q-2422 MKII  
Professional Preamp Mixer  
User Guide  
and Reference Manual  
4295 Charter Street  
Los Angeles Ca. 90058  
Rev. 04/05  
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Q-2422 MKII™  
ELECTRICAL SAFETY PRECAUTIONS  
LINE VOLTAGE SELECTION  
• The desired voltage may be set with the  
VOLTAGE SELECTOR switch on the rear  
panel (using a flat head screw driver).  
• Do not force the VOLTAGE SELECTOR  
switch as this may cause damage  
WARNING: TO PREVENT FIRE OR ELECTRIC  
SHOCK HAZARD, DO NOT EXPOSE THIS  
UNIT TO RAIN, LIQUIDS, OR MOISTURE  
• If the VOLTAGE SELECTOR switch does  
not move smoothly, please contact a quali-  
fied service technician.  
CAUTION: TO PREVENT ELECTRIC SHOCK  
DO NOT USE THIS (POLARIZED) PLUG WITH  
AN EXTENSION CORD, RECEPTACLE, OR  
OTHER TYPE OF ELECTRICAL OUTLET  
UNLESS THE WIDE BLADES CAN BE  
CAREFULLY INSERTED INTO A MATCHING  
WIDE SLOT.  
SERIAL NO:  
MODEL NO  
:
Q-2422 MKII  
POWER SOURCE  
:
115/230V~ 50/60Hz 13W  
MADE IN CHINA  
ATTENTION: POUR PREVENIR LES CHOCS  
ELECTRIQUES NE PAS UTILISER CETTE  
FICHE POLARISEE AVEC UN PROLON-  
GATEUR, UNE PRISE DE COURANT OU  
UNE AUTRE SORTIE DE COURANT, SAUF  
SI LES LAMES PEUVENT ETRE INSEREES A  
FOND SANS EN LAISSER AUCUNE PARTIE A  
DECOUVERT.  
B
A
MIN  
MAX  
TRIM OUTPUT  
VOLTAGE SELECTOR SWITCH  
The serial and model number for this unit is  
located on the rear panel. Please write down  
the numbers here and retain for future refer-  
ence.  
Model No._____________________________  
Serial No._____________________________  
NOTE: This product satisfies FCC  
regulations when shielded cables  
and connectors are used to con-  
nect the unit to other equipment.  
To prevent electromagnetic inter-  
ference with electrical appliances  
such as radios and televisions, use  
shielded cables and connectors  
for connections.  
Purchase Notes:  
Date of Purchase_______________________  
Dealer Name__________________________  
Dealer Address_________________________  
_____________________________________  
_____________________________________  
Dealer Phone__________________________  
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Q-2422 MKII™  
ELECTRICAL SAFETY PRECAUTIONS  
ELECTRICAL PRECAUTIONS  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
The lightning flash with arrowhead symbol, within an  
equilateral triangle, is intended to alert the user to the  
presence of uninsulated "dangerous voltage" within the  
product'senclosurethatmaybeofsufficientmagnitude  
to constitute a risk of electric shock to persons.  
The exclamation point within an equilateral triangle is  
intended to alert the user to the presence of important  
operating and maintenance (servicing) instructions in  
the literature accompanying the appliance.  
CAUTION: TO REDUCE THE RISK OF ELECTRIC  
SHOCK, DO NOT REMOVE THE COVER (OR BACK).  
THERE ARE NO USER SERVICEABLE PARTS  
INSIDE REFER SERVICE TO YOUR AUTHORIZED  
AMERICAN AUDIO® SERVICE TECHNICIAN.  
IMPORTANT SAFETY INSTRUCTIONS  
OBJECT AND LIQUID ENTRY - Never push objects of  
READ INSTRUCTIONS — All the safety and operating  
GROUNDING OR POLARIZATION  
instructions should be read before the product is  
operated.  
Ifthisproductisequippedwithapolarizedalternating  
current line plug (a plug having one blade wider than  
theother), itwillfitintotheoutlet onlyoneway. This  
isasafetyfeature.Ifyouareunabletoinserttheplug  
fullyintotheoutlet, tryreversingtheplug. Iftheplug  
should still fail to fit, contact your electrician to  
replace your obsolete outlet. Do not defeat the  
safety purpose of the polarized plug.  
any kind into this product through openings as they  
may touch dangerous voltage points or short-out  
parts that could result in a fire or electric shock.  
Never spill liquid of any kind on the product.  
RETAIN INSTRUCTIONS — The safety and operating  
instructionsshouldberetainedforfuturereference.  
HEED WARNINGS — All warnings on the product and  
in the operating instructions should be adhered to.  
FOLLOW INSTRUCTIONS — All operating and use  
instructions should be followed.  
SERVICING — Do not attempt to service this product  
yourself as opening or removing covers may expose  
you to dangerous voltage or other hazards. Refer all  
servicing to qualified service personnel.  
CLEANING — The product should be cleaned only with  
a polishing cloth or a soft dry cloth. Never clean with  
furniture wax, benzine, insecticides or other volatile  
liquids since they may corrode the cabinet.  
If this product is equipped with  
a
three-wire  
DAMAGEREQUIRINGSERVICE - Unplugthisproduct  
from the wall outlet and refer servicing to qualified  
service personnel under the following conditions:  
groundingtypeplug,aplughavingathird(grounding)  
pin, itwillonlyfitintoagroundingtypepoweroutlet.  
Thisisasafetyfeature.Ifyouareunabletoinsertthe  
plug into the outlet, contact your electrician to  
replace your obsolete outlet. Do not defeat the  
safety purpose of the grounding type plug.  
When the power-supply cord or plug is damaged.  
If liquid has been spilled, or objects have fallen into  
the product.  
ATTACHMENTS  
Do not use attachments not  
recommendedbytheproductmanufacturerasthey  
may cause hazards.  
WATER AND MOISTURE — Do not use this product  
near water — for example, near a bathtub, wash  
bowl,kitchensink,orlaundrytub;inawetbasement;  
or near a swimming pool; and the like.  
ACCESSORIES — Do not place this product on an  
unstable cart, stand, tripod, bracket, or table. The  
product may fall, causing serious injury to a child or  
adult, and serious damage to the product. Use only  
If the product has been exposed to rain or water.  
Iftheproductdoesnotoperatenormallybyfollowing  
theoperatinginstructions.Adjustonlythosecontrols  
that are covered by the operating instructions as an  
improper adjustment of other controls may result in  
damage and will often require extensive work by a  
qualified technician to restore the product to its  
normal operation.  
POWER-CORD PROTECTION - Power-supply cords  
should be routed so that they are not likely to be  
walked on or pinched by items placed upon or  
against them, paying particular attention to cords at  
plugs,conveniencereceptacles,andthepointwhere  
they exit from the product.  
OUTDOOR ANTENNA GROUNDING — If an outside  
antennaorcablesystemisconnectedtotheproduct,  
be sure the antenna or cable system is grounded so  
astoprovidesomeprotectionagainstvoltagesurges  
andbuilt-upstaticcharges.Article810oftheNational  
ElectricalCode,ANSI/NFPA70,providesinformation  
with regard to proper grounding of the mast and  
supporting structure, grounding of the lead-in wire  
to an antenna discharge unit, size of grounding  
conductors, location of antenna-discharge unit,  
connection to grounding electrodes, and  
requirementsforthegroundingelectrode.SeeFigure  
A.  
LIGHTNING — For added protection for this product  
duringalightningstorm,orwhenitisleftunattended  
and unused for long periods of time, unplug it from  
the wall outlet and disconnect the antenna or cable  
system. This will prevent damage to the product  
due to lightning and power-line surges.  
POWER LINES An outside antenna system should  
notbelocatedinthevicinityofoverheadpowerlines  
or other electric light or power circuits, or where it  
can fall into such power lines or circuits. When  
installing an outside antenna system, extreme care  
should be taken to keep from touching such power  
lines or circuits as contact with them might be fatal.  
OVERLOADING — Do not overload wall outlets,  
extensioncords,orintegralconveniencereceptacles  
as this can result in a risk of fire or electric shock.  
If the product has been dropped or damaged in any  
way.  
When the product exhibits a distinct change in  
performance — this indicates a need for service.  
with  
a
cart, stand, tripod, bracket, or table  
recommended by the manufacturer, or sold with  
the product. Any mounting of the product should  
follow the manufacturer’s instructions, and should  
use a mounting accessory recommended by the  
manufacturer.  
REPLACEMENT PARTS -- When replacement parts  
arerequired,besuretheservicetechnicianhasused  
replacement parts specified by the manufacturer or  
have the same characteristics as the original part.  
Unauthorizedsubstitutionsmayresultinfire,electric  
shock, or other hazards.  
SAFETY CHECK - Upon completion of any service or  
repairs to this product, ask the service technician to  
performsafetycheckstodeterminethattheproduct  
is in proper operating condition.  
WALL OR CEILING MOUNTING — The product should  
not be mounted to a wall or ceiling.  
HEAT The product should be situated away from heat  
sources such as radiators, heat registers, stoves, or  
other products (including amplifiers) that produce  
heat.  
CART — A product and cart combination should be  
moved with care. Quick stops, excessive force, and  
uneven surfaces may cause the product and cart  
combination to overturn.  
VENTILATION — Slots and openings in the cabinet are  
provided for ventilation and to ensure reliable  
operation of the product and to protect it from  
overheating, and these openings must not be  
blocked or covered. The openings should never be  
blocked by placing the product on a bed, sofa, rug,  
or other similar surface. This product should not be  
placed in a built-in installation such as a bookcase or  
rack unless proper ventilation is provided or the  
manufacturer’s instructions have been adhered to.  
POWER SOURCES —This product should be operated  
only from the type of power source indicated on the  
marking label. If you are not sure of the type of  
power supply to your home, consult your product  
dealer or local power company.  
ANTENNA  
LEAD IN  
WIRE  
GROUND  
CLAMP  
ANTENNA  
DISCHARGE UNIT  
(NEC SECTION 810-20)  
LOCATION – The appliance should be installed in a  
stable location.  
NONUSE PERIODS – The power cord of the appliance  
should be unplugged from the outlet when left un-  
used for a long period of time.  
ELECTRIC  
SERVICE  
EQUIPMENT  
GROUNDING CONDUCTORS  
(NEC SECTION 810-21)  
GROUND CLAMPS  
POWER SERVICE GROUNDING  
ELECTRODE SYSTEM  
(NEC ART 250, PART H)  
Fig. A  
NEC — NATIONAL ELECTRICAL CODE  
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Q-2422 MKII™  
SAFETY PRECAUTIONS  
8. Never plug this mixer in to a dimmer pack.  
1. For adult use only - Keep out of the reach  
of children.  
9. Do not let insecticides, benzene, or thinner  
come in contact with the surface of the unit.  
2. Water and Moisture - The player should not  
be used near water - for example, near a bath  
tub, kitchen sink, laundry tub, in a wet base-  
ment or near a swimming pool, etc. Do not  
spill water or other liquids in to or on to your  
mixer.  
10. This unit is intended for indoor use only, use  
of this product outdoors voids all warranties.  
11. Always mount this unit in safe and stable  
matter.  
12. Disconnect from main power before making  
any type of connection.  
3. Ventilation - The Mixer should be situated  
so that its location or position does not inter-  
fere with its proper ventilation. For example,  
the Mixer should not be situated on a bed,  
sofa, rug, or similar surface that may block the  
ventilation openings; or, placed in a built-in  
installation, such as a bookcase or cabinet that  
may impede the flow of air through the ventila-  
tion openings.  
13. Cleaning - The mixer should be cleaned  
only as recommended by the manufacturer.  
Use a soft cloth to wipe down the outside of the  
unit. For stubborn stains moisten a soft cloth  
with glass cleaner or other mild detergent to  
wipe away any stains. Use a soft cloth to wipe  
any residual cleaner. Never use volatile clean-  
ers such as benzene, solvent, or thinner to clean  
your unit, these cleaners will damage the units  
surface.  
4. Heat - The Mixer should be situated away  
from heat sources such as radiators, heat reg-  
isters, stoves, or other appliances (including  
amplifiers) that produce heat.  
14. Handle the power supply cord carefully. Do  
not damage or deform; it may cause electric  
shock or malfunction when used. Hold plug  
attachment when removing from wall outlet.  
Do not pull on the cord.  
5. Power Sources - The Mixer should be con-  
nected to a power supply (wall outlet) only of  
the type described in the operating instructions  
or as marked on the Mixer.  
15. To avoid electric shock, do not open the  
top cover when the unit is plugged in. If prob-  
lems occur with the unit, call American Audio®  
customer support.  
6. Servicing -The user should not attempt to  
service the Mixer beyond that described in the  
operating instructions. There are no user ser-  
viceable parts inside. All other servicing should  
be referred to qualified service personnel. The  
Player should be serviced by qualified service  
personnel when:  
16. Do not place metal objects or spill any liq-  
uids inside or on the mixer. Electric shock or  
malfunction may occur.  
A. The power-supply cord or the plug has  
been damaged.  
B. Objects have fallen, or liquid has been  
spilled into the Mixer.  
C. The Mixer has been exposed to rain  
or water.  
D. The Mixer does not appear to operate  
normally or exhibits a marked change  
in performance.  
17. Power Cord Protection - Power supply  
cords should be routed so that they are not  
likely to be walked on or pinched by items  
placed upon or against them, paying particular  
attention to cords at plugs, convenience recep-  
tacles, and the point where they exit from the  
mixer. Route your power cord out of the way of  
foot traffic.  
18. Always have the front gain controls set to  
their lowest level during initial power-up to pre-  
vent speaker damage.  
7. Never disassemble or modify your unit in  
any way, doing so will void your manufactures  
warranty.  
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Q-2422 MKII™  
INTRODUCTION  
Introductions: Congratulations and thank you for purchasing the American Audio® Q-2422 MKII™  
mixer. This mixer is a representation of American Audio’s continuing commitment to produce the best  
and highest quality audio products possible at an affordable price. Please read and understand this  
manual completely before attempting to operate your new mixer. Please carefully read and understand  
the instructions in this manual thoroughly before attempting to operate this unit. These instructions  
contain important safety information regarding the use and maintenance of this unit. Take special care  
to follow all warning symbols and labels both on the unit and printed in this manual. Also, Please keep  
this manual with the unit, for future reference.  
Customer Support:  
American Audio® provides a toll free customer support line, to provide set up help and answer any  
question should you encounter problems during your initial set up or operation. You may also visit us  
through Friday 9:00 a.m. to 5:30 p.m. Pacific Standard Time.  
Voice:  
Fax:  
(800) 322-6337  
(323) 582-2610  
E-mail:  
Caution! There are no user serviceable parts inside this mixer. Do not attempt any repairs yourself,  
without being instructed to do so by an authorized American Audio service technician. Doing so will  
void your manufactures warranty. In the unlikely event your mixer may require service, please contact  
American Audio® customer support.  
Do not discard the packing carton in the trash. Please recycle when ever possible.  
Q-2422 MKII™  
SET-UP PRECAUTIONS  
Please be sure to make any connections before plugging the mixer in to an electrical outlet. All fader  
and volume controls should be set to zero or minimum position, before the mixer is switched on. If the  
mixer has been exposed to drastic temperature fluctuation (e.g. after transportation), do not switch on  
the mixer immediately. The arising condensation of water might damage your device. Leave the device  
switched off until it has reached room temperature.  
Operating Determinations:  
• When installing this mixer, please make sure that the device is not exposed or will not be  
exposed to extreme heat, moisture or dust!  
• Do not operate the mixer in extremely hot (more than 30°/100°F) or extremely cold (less than  
5°C/40°F) surroundings.  
• Keep the unit out of direct sunlight and away from heaters.  
• Operate the mixer only after becoming familiar with its functions. Do not permit operation by  
persons not qualified for operating the mixer. Most damages are the result of unprofessional  
operation!  
• Do not attempt to operate this mixer if the power cord has been frayed or damaged.  
• Disconnect from main power before making any type of connection.  
• Do not attempt to operate this mixer, if it becomes damaged in any way.  
• Never operate this mixer when it’s covers are removed.  
To reduce the risk of electrical shock or fire, do not expose this mixer to rain or moisture.  
• This mixer is intended for indoor use only, use of this product outdoors voids all warranties.  
• During long periods of non-use, disconnect the mixer’s main power.  
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Q-2422 MKII™  
UNPACKING  
Every Q-2422 MKII™ has been thoroughly tested and has been shipped in perfect operating condition.  
Carefully check the shipping carton for damage that may have occurred during shipping. If the carton  
appears to be damaged, carefully inspect your mixer for any damage and be sure all equipment neces-  
sary to operate the mixer has arrived intact. In the event damage has been found or parts are missing,  
please contact our toll free customer support number for further instructions. Please do not return the  
mixer to your dealer without first contacting American Audio® customer support.  
Q-2422 MKII™  
QUICK START INSTRUCTIONS  
QUICK START: American Audio® would like to thank you for your purchase of this great audio product.  
For those of you that are too impatient to read the entire user manual we have compiled these quick  
start instructions. We hope that you will at least read through these instructions to familiarize yourself  
with the basics of this mixer. The Q-2422 MKII™ is part of American Audio’s continuing evolution in  
audio technology. This unit has been built and designed to meet the needs of a typical DJ. We have  
attempted to provide you with the most reliable product on the market by using only components con-  
structed of the finest material.  
MASTER LEVEL - Use this level to control your main volume output. Try never to send an output of  
more than +4dB to your system. Signal at levels higher than this will start to distort and may cause  
damage to your system and speakers. Remember that a distorted signal from you mixer will only be  
multiplied throughout your system.  
CHANNEL GAIN LEVEL - The channel gain levels are not to be used as volume controls. Never use  
the channel trim to set the output volume. These controls are used to aid in distortion control. Use  
these control to preset your signal level before the crossfader. With your channel faders in the maxi-  
mum position, use the channel trim level to set an average output level of about +4dB on your master  
level meter.  
HEADPHONES - To avoid damaging your headphones always be sure the headphone volume level  
(16) is set to minimum before plugging them in. To avoid sever hearing damage, never put the head-  
phone on without making sure the headphone level is turned down.  
MAIN MIC - The main mic connector uses a combo plug that allows you to connect either a 1/4”  
unbalanced jack or by a standard 3-pin XLR balanced connector. The main mic also has an indepen-  
dent volume control. When feedback occurs when using the mic, try lowering the level this may reduce  
the feedback. Always leave the mic level to it’s minimum level when not in use. Note: We recommend  
that you use a 500-600ohm microphone for the best sound quality.  
PHONO/AUX LINE LEVEL SELECTOR SWITCH - This switch is used to change the selected input  
from phono to line and vice versa. The switch selectors are on the rear panel.  
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Q-2422 MKII™  
FRONT PANEL - CONTROLS AND FUNCTIONS  
1
2
3
4
5
6
7
8
9
10  
11 12  
AUX/IN  
26 25  
24 23  
22  
21 20 19  
18 17 16 15 14 13  
1. MICROPHONE EQ SECTION -  
MICROPHONE BASS CONTROL - This knob is used to adjust the low frequency levels of the  
microphone with a maximum signal gain of +15dB or maximum signal decrease of -30dB. Turning the  
knob in a counter-clockwise direction will decrease the amount of bass applied to the microphone  
signal, turning the knob in a clockwise direction will increase the amount of bass applied to micro-  
phone signal.  
MICROPHONE MIDRANGE CONTROL - This knob is used to adjust the midrange levels of the  
microphone with a maximum signal gain of +15dB or maximum signal decrease of -30dB. Turning  
the knob in a counter-clockwise direction will decrease the amount of midrange applied to the micro-  
phone signal, turning the knob in a clockwise direction will increase the amount of midrange applied  
to microphone signal.  
MICROPHONE TREBLE CONTROL - This knob is used to adjust the treble levels of the  
Microphone with a maximum signal gain of +15dB or maximum signal decrease of -30dB. Turning the  
knob in a counter-clockwise direction will decrease the amount of treble applied to the microphone  
signal, turning the knob in a clockwise direction will increase the amount of treble applied to micro-  
phone signal.  
2. MICROPHONE 1 - This combo jack will accept a standard 1/4 plug or XLR 3-pin balanced male  
plug. The volume output level for this microphone will be controlled by its own respective CHANNEL  
KNOB (25). Note: We recommend that you use a 500-600ohm microphone for the best sound  
quality.  
3. SOURCE SELECTOR SWITCH - These switches are used to select the input source assigned to  
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Q-2422 MKII™  
FRONT PANEL - CONTROLS AND FUNCTIONS CONT.  
each channel. Each channel may only be assigned one input source at a time. This switch must be in  
the “phono” position for turntable operation.  
4. PAN CONTROL - The balance control for each channel, or how much left and right signal is sent  
to the left and right MASTER OUT JACKS (35).  
5. CHANNEL GAIN CONTROL - This adjustment is used to adjust the audio source signal input gain  
for a channel. Never use the gain control to adjust a channels output volume. Setting the gain level  
properly will ensure a clean output signal. An improper gain level adjustment will send a distorted  
signal throughout the entire audio line which may damage speakers and amplifiers. To properly set a  
channels gain level control:  
1. Be sure the MASTER VOLUME CONTROL (17) is set to level 4.  
2. Set the CHANNEL FADER (23) to level 8.  
3. Begin playback on an audio source connected to the channel you are adjusting.  
4. Use the Gain Control to adjust an average output volume of +4 dB.  
5. Repeat this step for all channels  
6. CHANNEL EQ SECTION -  
CHANNEL TREBLE CONTROL - This knob is used to adjust the treble levels of a channel  
allowing for a maximum treble gain of +15dB or maximum decrease of -30dB. Turning the knob in a  
counter-clockwise direction will decrease the amount of treble applied to a channel signal, turning the  
knob in a clockwise direction will increase the amount of treble applied to a channel signal.  
CHANNEL MIDRANGE CONTROL - This knob is used to adjust the midrange levels of a chan-  
nel allowing for a maximum midrange gain of +15dB or maximum decrease of -30dB. Turning the knob  
in a counter-clockwise direction will decrease the amount of midrange applied to a channel signal,  
turning the knob in a clockwise direction will increase the amount of midrange applied to a channel  
signal.  
CHANNEL BASS CONTROL - This knob is used to adjust the low frequency levels of a channel  
allowing for a maximum bass gain of +15dB or maximum signal decrease of -35dB. Turning the knob  
in a counter-clockwise direction will decrease the amount of bass applied to a channel signal, turning  
the knob in a clockwise direction will increase the amount of bass applied to a channel signal.  
7. CHANNEL VOLUME LEVEL INDICATORS - The LED indicators that run along each channels EQ  
section are used to measure incoming signal levels. Use these indicator to visually maintain an average  
signal output of +4dB. A consistent average output level of +4dB will produce a clean output signal.  
8. MASTER VOLUME LEVEL INDICATORS - The dual MASTER LEVEL LED indicators are used to  
detail the master fader output level. The meters will detail the output level of both the left and right  
channels.  
9. MASTER OUTPUT BALANCE CONTROL - This knob is used to control the pan, adjust how much  
of the signal is sent to the left and right output level. For true stereo imaging, maintain the knob in the  
12 o’ clock position.  
10. AUX 3 INPUT JACK - This Aux input is for the use of a Mp3 player. Input volume will be con-  
trolled by the channel three fader.  
11. BNC JACK - This jack is used to supply a 12V DC signal to a gooseneck light, such as the  
American Audio® GNL-14.  
12. POWER SWITCH - This is the main power ON/OFF button. A blue LED next to the power switch  
will glow when power is ON. Before you turn the power on be sure you have made all connections to the  
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Q-2422 MKII™  
FRONT PANEL - CONTROLS AND FUNCTIONS CONT.  
mixer. Also be sure you amplifiers are turned off. Remember mixer on first and turned off last.  
13. ZONE EQ SECTION -  
ZONE TREBLE CONTROL - This knob is used to adjust the treble levels of the ZONE allowing  
for a maximum treble gain of +15dB or maximum decrease of -30dB. Turning the knob in a counter-  
clockwise direction will decrease the amount of treble applied to the ZONE signal, turning the knob in  
a clockwise direction will increase the amount of treble applied to the ZONE signal.  
ZONE BASS CONTROL - This knob is used to adjust the low frequency levels of the ZONE  
allowing for a maximum bass gain of +15dB or maximum signal decrease of -30dB. Turning the knob  
in a counter-clockwise direction will decrease the amount of bass applied to the ZONE signal, turning  
the knob in a clockwise direction will increase the amount of bass applied to the ZONE signal.  
ZONE LEVEL VOLUME OUTPUT CONTROL - This rotary knob is used to control the zone level  
volume. The zone level is not PFL, it is essentially a second master output volume with separate output  
volume control.  
14. HEADPHONE JACK - This jack is used to connect your headphones to the mixer allowing you to  
monitor the cue source. Use headphones only rated at 8 ohms to 32 ohms. Most DJ headphones are  
rated at 16 ohm, these are highly recommended. Always be sure the CUE LEVEL VOLUME (16) is set  
to minimum before you put the headphones on.  
15. SPLIT CUE - This button will activate the "Split Cue" function. When used with a set of stereo  
headphones, the Split Cue function will assign the Cue signal to the left channel of the headphones  
and the Program (main output) signal to the right channel of the headphones. Essentially splitting the  
cue signal in half. This process will allow for headphones mixing. The CUE MIXING CONTROL (18) will  
also work in conjunction with function. Please note that this function will only work with a set of stereo  
headphones.  
16. CUE LEVEL VOLUME CONTROL - This knob is used to adjusts the headphone volume output  
level. Turn the knob in a clockwise direction to increase the headphone volume.  
17. MASTER VOLUME CONTROL - This slider is used to control the master output level (main volume).  
To avoid distorted output try to maintain an average output signal level no greater than +4 dB. (see  
Channel Gain 5) To avoid speaker damage that may be caused by excessive volume, be sure this  
slider is always set to zero (completely down) before turning the unit on.  
18. CUE MIXING CONTROL - This functions allows you to monitor the Cue level as well as the  
Program (main output) level in your headphones. A channels Cue Level may only be monitored if the  
channels CUE (19) function is selected. To select a channels cue function press the CUE BUTTON  
(19) that is directly associated with the specific channel you wish to monitor. You may use the mixing  
function to blend both the Cue level and the Program level together. You can vary the output level  
to either hear more or less of either of the two levels. Sliding the Cue Mixing fader to the CUE posi-  
tion (left) will allow you to hear more of the Cue level. Sliding the knob to the PGM position (right) will  
allow you to hear more of the Program level (main output). You may also use the Cue Mixing Control  
to hear either the Cue level or the Program level exclusively. If the fader is in the full CUE position you  
will only hear the cue level, if the fader is in the full PGM position you will only hear the main output.  
This function is especially useful when mixing without an monitor.  
19. CUE BUTTON - These buttons are used to activate a channels “CUE” mode. A red LED on the  
Cue button will glow when a channels cue mode is activated. The Cue function sends a channels  
incoming signal to the headphones. The cue level is adjusted by the CUE LEVEL KNOB (16). Be sure  
the CUE MIXING SLIDER (18) is set to the “CUE” position to hear a selected channel source.  
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Q-2422 MKII™  
FRONT PANEL - CONTROLS AND FUNCTIONS CONT.  
20. Q-START ON/OFF BUTTON - This function works in conjunction with a compatible American DJ®  
or American Audio® “Q” Start CD player. When used with a compatible CD player, you can use the  
crossfader to start and stop a CD Player with the slide of the mixer’s CROSSFADER (22). The ON/OFF  
“Q" START BUTTTON activates the FADER “Q" START feature. When in the ON position (GREEN LED  
WILL BE LIT), the FADER “Q" START automatically returns the CD player to the preset CUE POINT.  
For example; Assuming you have two compatible American Audio™ CD players or a  
compatible dual CD player connected to channels one and two. When the Fader "Q" Start  
option is turned on, sliding the crossfader to the far left position will trigger playback on CD  
player 1. When the crossfader is pushed to the far right position, playback on CD player 2 will  
begin, and CD player 1 will return to the cue position. Refer to your American Audio CD player  
user manual for setting CUE POINTS. Turn the ON/OFF BUTTON to the OFF position (RED  
LED IS NOT LIT) to disengaged “Q” Start function and resume to a normal fader.  
21. FADER ASSIGN SWITCH - This is a four position switch that assigns a channel to the CROSS-  
FADER (22). When a channel is assigned to the left side of the CROSSFADER (22) that channels  
output level is routed to and controlled by the CROSSFADER (22). Sliding the CROSSFADER (22) to  
left position will send the volume output of the assigned channel to the MASTER VOLUME LEVEL (17),  
siding the CROSSFADER (22) to right position will cut that channels volume to MASTER VOLUME  
LEVEL (17). The reverse is true for the right channel fader assign switch. When the assign switch is set  
to the "OFF" position the crossfader will have no function.  
22. FEATHER FADER PLUS CROSSFADER - This fader is used to blend the output signals of chan-  
nels one and two together. When the fader is in the full left position (channel 1), the output signal of  
channel one will be controlled by the master volume level. The same fundamentals will apply for chan-  
nel two. Sliding the fader from one position to another will vary the output signals of channels one  
and two respectively. When the crossfader is set in the center position, the output signals of both the  
channels one and channels two will be even.  
23. CHANNEL VOLUME FADER - These faders are used to control the output signal of any source  
assigned to its particular channel. However, master volume is controlled by the MASTER VOLUME  
CONTROL (17).  
24. MIC 2 VOLUME CONTROL - This knob controls the output volume of MICROPHONE 2 (28).  
However, master volume is controlled by the MASTER VOLUME CONTROL (17).  
25. MIC 1 VOLUME CONTROL - This knob controls the output volume of MICROPHONE 1 (2).  
However, master volume is controlled by the MASTER VOLUME CONTROL (17).  
26. TALKOVER CONTROL - This function decreases all signal output except the microphone signal.  
The amount of decrease is preset to -14dB and is not user selectable.  
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Q-2422 MKII™  
REAR PANEL - CONTROLS AND FUNCTIONS  
SERIAL NO:  
MODEL NO  
:
Q-2422 MKII  
POWER SOURCE  
:
115/230V~ 50/60Hz 13W  
27  
MADE IN CHINA  
B
A
MIN  
MAX  
BOOTH  
TRIM OUTPUT  
40  
39  
38  
37 36  
353433 32  
31 29 30 29  
28  
27. GND (GROUND TERMINAL) - Be sure to connect turntable ground leads to either or both of the  
two available ground terminals. This will reduce the humming and popping noises associated with  
magnetic phono cartridges.  
28. MICROPHONE 2 CONNECTOR - This jack is used to a connect a microphone to the mixer.  
Connect you microphone via this 1/4 inch (6.3mm) jack. The volume output level for this microphone  
will be controlled by its own respective CHANNEL KNOB (24).  
29. CHANNEL LINE LEVEL SELECTOR SWITCHES - These switches are used to change the volt-  
age line levels of there respected Phono / Aux RCA inputs jacks. When connecting turntables with  
magnetic cartridges to these jacks be sure the corresponding switch is in the “PHONO” position,  
and when using line level input devices be sure this switch is in the “AUX” position. Always be sure  
main power is shut off before change the position of the Line Level Selector Switch.  
30. CHANNEL 1: PHONO 1/AUX 1 INPUT - The type of input must directly reflect the selected mode  
of the LINE LEVEL SELECTOR SWITCH (29). Turntables equipped with MM pickup cartridge (All DJ  
turntable use MM pick-up cartridges) may be connected to these jacks as long as the LINE LEVEL  
SELECTOR SWITCH (29) is in the “PHONO 1” position. CD players, Tape Decks and other line level  
instruments may only be connected to these jacks as long as the LINE LEVEL SELECTOR SWITCH  
(29) is in the “AUX 1” position. Never connect line level instruments (CD players, tape decks, etc.)  
to these jacks when the LINE LEVEL SELECTOR SWITCH (29) is in the “PHONO 1” position, THIS  
MAY SERIOUSLY DAMAGE YOUR MIXER! The red colored RCA jack represents the right channel  
input and the white represents the left channel input. Input volume will be controlled by the channel  
one fader. The channel SOURCE SELECTOR SWITCH (3) must be in the "Phono 1/Aux 1" position,  
to monitor any source connected to these jacks.  
CHANNEL 1: LINE 1 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS!  
CD players, Tape Decks and other line level instruments may be connected to these jacks. The red  
colored RCA jack represents the right channel input and the white represents the left channel input.  
Input volume will be controlled by channel one fader. The channel SOURCE SELECTOR SWITCH (3)  
must be in the "Line 1" position, to monitor any source connected to these jacks.  
31. CHANNEL 2: PHONO 2/AUX 2 INPUT - The type of input must directly reflect the selected mode  
of the LINE LEVEL SELECTOR SWITCH (29). Turntables equipped with MM pickup cartridge (All DJ  
turntable use MM pick-up cartridges) may be connected to these jacks as long as the LINE LEVEL  
SELECTOR SWITCH (29) is in the “PHONO 2” position. CD players, Tape Decks and other line level  
instruments may only be connected to these jacks as long as the LINE LEVEL SELECTOR SWITCH  
(29) is in the “AUX 2” position. Never connect line level instruments (CD players, tape decks, etc.)  
to these jacks when the LINE LEVEL SELECTOR SWITCH (29) is in the “PHONO 2” position, THIS  
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Q-2422 MKII™  
REAR PANEL - CONTROLS AND FUNCTIONS CONT.  
MAY SERIOUSLY DAMAGE YOUR MIXER! The red colored RCA jack represents the right channel  
input and the white represents the left channel input. Input volume will be controlled by the channel  
two fader. The channel SOURCE SELECTOR SWITCH (3) must be in the "Phono 2/Aux 2" position,  
to monitor any source connected to these jacks.  
CHANNEL 2: LINE 2 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS!  
CD players, Tape Decks and other line level instruments may be connected to these jacks. The red  
colored RCA jack represents the right channel input and the white represents the left channel input.  
Input volume will be controlled by channel two fader. The channel SOURCE SELECTOR SWITCH (3)  
must be in the "Line 2" position, to monitor any source connected to these jacks.  
32. CHANNEL 3: LINE 3 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS!  
CD players, Tape Decks and other line level instruments may be connected to these jacks. The red  
colored RCA jack represents the right channel input and the white represents the left channel input.  
Input volume will be controlled by channel three fader. The channel SOURCE SELECTOR SWITCH  
(3) must be in the "Line 3" position, to monitor any source connected to these jacks.  
CHANNEL 3: LINE 4 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS!  
These Jacks are used for line level inputs. Connect CD players or Tape Decks to line level inputs.  
Line level musical instruments with stereo outputs such as Rhythm Machines or Samplers should  
also be connected to line level inputs. The red colored RCA jack represents the right channel input  
and the white represents the left channel input. Input volume will be controlled by the channel three  
fader. The channel SOURCE SELECTOR SWITCH (3) must be in the "Line 4" position, to monitor  
any source connected to these jacks.  
33. REC OUT - This is a low current unbalanced output source designed for various tape and CD  
recorders. The Record Out (REC OUT) level is dictated by the CHANNEL FADER LEVEL (23), it is not  
influenced by the MASTER VOLUME CONTROL (17).  
34. ZONE LEVEL OUTPUT - Use this separate output signal to drive a booth monitor or separate  
sound system. The output level for these jacks will be controlled by the ZONE VOLUME KNOB  
(13). These RCA jacks send a low current, unbalanced output signal. These jacks should only be  
used for shorter cable runs (under 15 feet) to signal processors or looping to another mixer.  
35. RCA MASTER OUTPUTS - The Master Output includes a pair XLR BALANCED JACKS (38)  
as well as a pair of RCA Unbalanced Jacks. The RCA jacks send a low current unbalanced output  
signal. These jacks should only be used for shorter cable runs to signal processors or looping to  
another mixer. For cable runs greater than 15 feet use the XLR BALANCED JACKS (38).  
36. PLAYER CONTROL -  
PLAYER A CONTROL - This jack is used to control the “Q-Start” function between the mixer  
and a compatible American Audio® or American DJ® CD Player. Using the mini plug included with  
your CD player, connect from the CD player controller out jack to this jack. Player A “Q-Start” func-  
tionallity will be controlled by the left side (X) of the CROSSFADER (22). For more information on  
“Q-Start” functionallity refer to the user manual included with your CD player. Be sure to only use  
the mono tip mini plug included with your CD player to avoid damage to the mixer and/or the CD  
player.  
PLAYER B CONTROL - This jack is used to control the “Q-Start” function between the mixer  
and a compatible American Audio® or American DJ® CD Player. Using the mini plug included with  
your CD player, connect from the CD player controller out jack to this jack. Player B “Q-Start” func-  
tionallity will be controlled by the right side (Y) of the CROSSFADER (22). For more information on  
“Q-Start” functionallity refer to the user manual included with your CD player. Be sure to only use  
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Q-2422 MKII™  
REAR PANEL - CONTROLS AND FUNCTIONS CONT.  
the mono tip mini plug included with your CD player to avoid damage to the mixer and/or the CD  
player.  
37. TRIM OUTPUT - This knob is used to adjust the maximum voltage output level. Output voltage  
wil range from 0v ~ 9v. This function may be used to limit the maximum siganl output level.  
38. BALANCED XLR MASTER OUTPUTS JACKS - The Master Output includes a pair of XLR  
Balanced jacks as well as a pair of RCA UNBALANCED JACKS (34). The 3-pin XLR jacks send a  
high current balanced output signal. These jacks should be used when you will be driving an amp or  
other audio equipment with a balanced input, or whenever you will be running a signal line greater  
than 15 feet. Always, use these jacks whenever possible.  
39. AC CONNECTION - This connector is used to supply main power to the unit via the included  
detachable power cord. The power connection uses an I.E.C. type connector, use only the supplied,  
polarized AC power cord. Use only a power cord that matches this type of connection. Be sure to  
only connect this unit to a power outlet that matches the printed power label on the unit. Never use  
a power cord when the ground prong has been removed or broken off. The ground prong is used to  
reduce the risk of electrical shock in case of an electrical short. This cord is designed to fit in one  
direction only. Do not attempt to force a cord if it does not fit, be sure the cord is being inserted  
properly.  
40. AC VOLTAGE SELECTOR - This switch is used to change the operating voltage. Operating  
voltage can be toggled between 115v or 230v/50~60Hz. Be sure the selector is set to the proper  
voltage for your area before attempting to operate the unit. Always be sure main power is shut off  
before change the position of the Voltage Selector Switch.  
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Q-2422 MKII™  
TYPICAL MIXER SET-UP  
AUX/IN  
SERIAL NO:  
MODEL NO  
:
Q-2422 MKII  
POWER SOURCE  
:
115/230V~ 50/60Hz 13W  
MADE IN CHINA  
B
A
MIN  
MAX  
BOOTH  
TRIM OUTPUT  
1
2
3
4
5
6
7
8
9
0
T
AUTO  
CUE  
ELAPSED TOTAL REMAIN  
CUE  
.
SINGLE  
LOOP  
RELOOP  
M
S
F
PITCH  
EJECT/  
STOP  
SCRATCH  
FLANGER  
HOLD  
ECHO  
TRANS  
PARAMETER  
SGL/CTN  
TIME  
AUTO CUE  
8%/12%/16%  
ON/OFF  
CASSETTE DECK  
SAMPLE PITCH  
TURNTABLE  
This image details a typical DJ Set Up consisting of a microphone, turn-  
tables, CD players, and a tape deck.  
Note: Turntables can only be connected to the PHONO LEVEL RCA  
JACKS (30 & 31). Be sure the LINE LEVEL SELECTOR SWITCHES  
(29) are in the "PHONO" position when using turntables.  
TURNTABLE  
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Q-2422 MKII™  
TYPICAL MIXER SET-UP  
AUX/IN  
SERIAL NO:  
MODEL NO  
:
Q-2422 MKII  
POWER SOURCE  
:
115/230V~ 50/60Hz 13W  
MADE IN CHINA  
B
A
MIN  
MAX  
BOOTH  
TRIM OUTPUT  
RCA to RCA Patch Cables  
Balanced XLR male to XLR female Cables  
CASSETTE DECK  
American Audio V4000™  
Speaker Cables  
Typical Balanced Output Set-up  
This image details a typical stereo output layout. Note the use of the Balanced XLR Jacks on both  
the mixer and the amplifier. Always use the balanced output jacks whenever possible. The balanced  
output jacks should always be used for cable runs in excess of 15 feet.  
Using the balanced jacks will ensure a clean signal through out the entire audio system.  
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Q-2422 MKII™  
CLEANING  
Due to fog residue, smoke, and dust, cleaning the mixer should be carried out periodically to residue  
build up.  
1. Use normal glass cleaner and a soft cloth to wipe down the outside casing.  
2. Use a cleaner specially designed for electronics to spray in and around the knobs and switch.  
This will reduce small particle built up that can effect the proper operation of the mixer.  
3. Cleaning should be carried out every 30-60 days to prevent heavy built up.  
4. Always be sure to dry all parts completely before plugging the mixer in.  
Cleaning frequency depends on the environment in which the mixer operates (i.e. smoke, fog residue,  
dust, dew).  
Q-2422 MKII™  
CROSSFADER REPLACEMENT  
The crossfader is “Hot Swapable” which means it may be replaced at any time, even when power is  
applied. Only replace with American Audio Part Feather Fader Plus. Replacing with any other model  
fader may seriously damage your mixer.  
Replacing the Crossfader:  
1. Disconnect the mixers main power supply  
2. Using a number two Phillips screw driver, unscrew the each of the stainless steel retain screws  
that hold the crossfader in place.  
3. Gently remove the crossfader from its seated position. You may need to wiggle the crossfader  
slightly to remove it.  
4. After removing the crossfader, disconnect the ribbon cables that attach the crossfader to the  
PC board. Grasp the crossfader by its base and pull each of the ribbon cables by its connector  
not the actual cables. The connector is designed to only fit one way, so don’t worry about the  
connectors orientation.  
5. Connect the new crossfader to the ribbon cable and replace in reverse order.  
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Q-2422 MKII™  
TROUBLESHOOTING  
Trouble Shooting: Listed below are common problems you may encounter, and solutions.  
There is no power to the unit:  
1. Be sure you have connected the power cord to a correct wall outlet.  
There is little or no sound:  
1. Check the input selector switch. Make sure it is set to the device that is currently playing.  
2. Check to see if the connection cables are connected properly.  
3. Check the Trim Output level control on the rear panel, make sure it is not set to low.  
The sound is distorted:  
1. Check the Trim Output level control on the rear panel, make sure it is not set to high.  
2. Make sure that the Gain level control is not set to high.  
Crossfader is not working:  
1. Check and see if any channels have been assigned to the crossfader.  
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Q-2422 MKII™  
WARRANTY  
The Q-2422 MKII™ carries a one year limited warranty. We recommend you fill out the enclosed warranty  
card to validate your purchase. All returned service items whether under warranty or not, must be freight  
pre-paid and accompany a R.A. (return authorization) number. If the mixer is under warranty, you must  
provide a proof of purchase invoice. You may obtain a R.A. number by contacting our customer support  
team on our toll free number. Please contact American Audio® customer support at (800) 322-6337  
for a R.A. number. All package not displaying a R.A. number on the outside of the package will  
be returned to the shipper.  
1-YEAR LIMITED WARRANTY  
A. American Audio® hereby warrants, to the original purchaser, American Audio® products to be free  
of manufacturing defects in material and workmanship for a period of 1 Year (365 days) from the date  
of purchase. This warranty shall be valid only if the product is purchased within the United States of  
America, including possessions and territories. It is the owner’s responsibility to establish the date and  
place of purchase by acceptable evidence, at the time service is sought.  
B. For warranty service, send the product only to the American Audio® factory. All shipping charges  
must be pre-paid. If the requested repairs or service (including parts replacement) are within the terms  
of this warranty, American Audio® will pay return shipping charges only to a designated point within  
the United States. If the entire instrument is sent, it must be shipped in its original package. No acces-  
sories should be shipped with the product. If any accessories are shipped with the product, American  
Audio® shall have no liability whatsoever for loss of or damage to any such accessories, nor for the  
safe return thereof.  
C. This warranty is void if the serial number has been altered or removed; if the product is modified in  
any manner which American Audio® concludes, after inspection, affects the reliability of the product;  
if the product has been repaired or serviced by anyone other than the American Audio® factory unless  
prior written authorization was issued to purchaser by American Audio®; if the product is damaged  
because not properly maintained as set forth in the instruction manual.  
D. This is not a service contract, and this warranty does not include maintenance, cleaning or peri-  
odic check-up. During the period specified above, American Audio® will replace defective parts at  
its expense, and will absorb all expenses for warranty service and repair labor by reason of defects  
in material or workmanship. The sole responsibility of American Audio® under this warranty shall be  
limited to the repair of the product, or replacement thereof, including parts, at the sole discretion of  
American Audio®. All products covered by this warranty were manufactured after January 1, 1990, and  
bear identifying marks to that effect.  
E. American Audio® reserves the right to make changes in design and/or improvements upon its prod-  
ucts without any obligation to include these changes in any products theretofore manufactured.  
F. No warranty, whether expressed or implied, is given or made with respect to any accessory sup-  
plied with products described above. Except to the extent prohibited by applicable law, all implied  
warranties made by American Audio® in connection with this product, including warranties of mer-  
chantability or fitness, are limited in duration to the warranty period set forth above. And no warran-  
ties, whether expressed or implied, including warranties of merchantability or fitness, shall apply to  
this product after said period has expired. The consumer’s and or Dealer’s sole remedy shall be such  
repair or replacement as is expressly provided above; and under no circumstances shall American  
Audio® be liable for any loss or damage, direct or consequential, arising out of the use of, or inability  
to use, this product.  
G. This warranty is the only written warranty applicable to American Audio® Products and supersedes  
all prior warranties and written descriptions of warranty terms and conditions heretofore published.  
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TECHNICAL SPECIFICATIONS  
Model: Q-2422 MKII 3 Channel Mixer  
POWER SUPPLY:  
DIMENSIONS:  
WEIGHT:  
AC 115v~60Hz/230v50~60Hz, User Selectable  
482.6mm (W) x 177mm (D) x 97mm (H)  
7.49 Lbs. / 3.4Kgs.  
CROSSFADER:  
Feather Fader Plus - VCA detecting fader start control -  
Low grounding impedance crossfader  
12W typical, 20W w/ full headphone output  
16 Ohms  
5 to 35 deg. C; Humidity: 25 to 85% RH  
(non-condensing); Storage Temperature: -20 to 60 deg. C  
POWER CONSUMPTION:  
HEADPHONE IMPEDANCE:  
OPERATING TEMPERATURE:  
Input Sensitivity (Level/Impedence): Note: 0dBV output, load = 100K OHM  
LINE, AUX:  
10K OHM / -14dBV (200mV) +/-2dB  
PHONO:  
MICROPHONE 1:  
MICROPHONE 2:  
47K OHM / -54dBV (2mV) +/-2dB  
2.2K OHM / -54dBV (2mV) +/-2dB  
2.2K OHM / -60dBV (1mV) +/-2dB  
Output Sensitivity (Level/Impedence): Note: 0dBV=1Vrms  
MASTER:  
300 OHM  
ZONE:  
1K OHM / 0dBV (1V) +/-2dB  
MASTER OUT (XLR):  
REC OUT (RCA):  
PHONES: (LOAD=32 OHMS)  
600 OHM / +2.21dBV (1V) +/-2dB  
2.2K OHM / -10dBV (316mV) +/-2dB  
33 OHM / dBV (1mV) +/-2dB  
Maximum Output: (LOAD = 47K, THD = 1%)  
MASTER/ZONE:  
PHONES: (LOAD=32 ohms)  
MORE THAN +18 dBV (8.0V)  
MORE THAN +4dBV (1.6V)  
CHANNEL BALANCE:  
WITHIN 3dB  
Frequency Response:  
LINE/AUX:  
20 - 20KHz +/-2dB  
PHONO:  
MICROPHONE:  
20 - 20KHz +2 /-3dB (RIAA)  
20 - 20KHz +2 /-3dB  
Noise: (maximum output) JIS-A weighted  
LINE/AUX:  
PHONO:  
MIC 1:  
LESS THAN -90dBV  
LESS THAN -66dBV  
LESS THAN -64dBV  
LESS THAN -60dBV  
MIC 2:  
THD - Total Harmonic Distortion: (MASTER = 0dBV OUTPUT, w/ 20KHz LPF):  
LINE:  
LESS THAN 0.02% 20 - 20KHz  
CROSS TALK:  
LINE:  
(MASTER = 0dBV OUTPUT)  
MORE THAN 60dB AT 1KHz BETWEEN L AND R  
MORE THAN 70dB AT 1KHz BETWEEN CHANNELS  
Channel Equalizer:  
BASS:  
+12 +/-2dB at 70Hz  
Below -27dB at 70Hz  
+12 +/-2dB at 1KHz  
Below -27 at 1KHz  
+12 +/-2dB at 13KHz  
-14 +/-3dB at 13KHz  
MID:  
TREBLE:  
Microphone Equalizer:  
BASS:  
TREBLE:  
+12 +/-2dB at 100Hz, -22 +/-3dB at 100Hz  
+12 +/-2dB at 10KHz, -15 +/-3dB at 10KHz  
TALKOVER:  
- 14 dB +/- 2dB  
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©American Audio® World Headquarters:  
4295 Charter Street Los Angeles, CA 90058 USA  
Tel: 323-582-3322 Fax: 323-582-3311  
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