powerone
AMPLIFIERS
p1-650.2 / p1-1050.2 / p1-1650.2
p1-650.4 / p1-1050.4 / p1-1650.4
p1-1050.1 / p1-2050.1 / p1-3050.1
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GENERAL INSTALLATION PROCEDURE
System Design
The success of any car stereo system relies on several factors, such as the system design, execution of the installation, and system setup. Please
remember that any system is only as good as its weakest link.
Please remember that higher power systems are not necessarily useful purely for high sound pressure levels, but also to establish a headroom capability, to
reproduce musical peaks cleanly without distortion. Lower power amplifiers will clip earlier than their more powerful cousins, and cause loudspeaker failure when
overdriven, due to the harmonics generated by a clipped signal, thus overheating voice coils.
Amplifiers should be mounted with the fins running horizontally for best convection cooling, to minimize overheating. Purchase the best quality RCA cables you can
afford, for reliability and less engine noise interference in the audio system.
Installation
WOOD
It is highly recommended that the amplifier be mounted to a board of MDF or other solid
structure using the 4 mounting screws provided. Avoid mounting the
POWERONE
amplifier to metal as this can introduce noise and other unwanted issues. When mounting
the amplifier, ensure that it is mounted HORIZONTALLY, as shown in the diagram above, for
optimal heat dissipation. Mounting amplifiers to speaker enclosures is not recommended as
this can cause damage to the amplifier components. When choosing a location for
mounting the amplifier, ensure that you check for clearance from wires, gas tank, electrical
devices and brake lines etc.
General:
Run the wiring so that RCA cables are at least 18“ away from power and speaker cables. Keep RCA cables away from electrical devices in the vehicle that can cause
electrical noise, such as electric fuel pumps, emission control modules and other on-board electronic modules.
Power and ground connections(see the features matrix on page 8 for proper gauge cables per amplifier):
Use a sufficient gauge power cable and ground cable using the chart below as reference to what size wire you require. Power One series amplifiers require at least 4
gauge power wire. In a multi amplifier system, add the total value of the manufacture recommended fusing to get your total system amperage. Some applications
may require multiple runs of power wire to meet the system requirements. In multi amplifier systems it is advisable to mount a large enough fuse right at the battery,
and run one or multiple +12 volt power cables to a fused distribution block near the amplifiers. It is then a simple matter to connect the +12 volt terminal of each
amplifier to the distribution block. During this process, please ensure that the main power fuse is removed to avoid shorting the electrical system. The main fuse must
be within 12” of the vehicles battery.
Ground each amplifier with as short a ground lead as possible directly to the vehicle chassis using at least 4 gauge wire or equivalent to the size of the amplifiers’
power wire. Use a ground distribution block, if you wish, but it is extremely important to keep the main ground lead from this distribution block to the chassis as short
as possible , not more than 12“. The ground connection integrity to the chassis is very important, and the best way to achieve a good, solid electrical and mechanical
contact is to use a large round crimp lug, crimped and soldered to the ground cable. The next step is to scrape the paint off the vehicle chassis , slightly larger than
the ground lug, at the connection point. Drill a clearance hole in the chassis, the same size as the lug hole, and use a bolt, spring washer and nut to securely fasten
the ground lug. Use petroleum jelly to coat the bolt/lug connection, to prevent oxidization with time.
TIP: Use the same approach when installing head units, equalizers or any audio equipment for that matter - run short individual grounds from each piece directly to
the vehicle chassis, to minimize ground loops and system noise. All power, ground and speaker connections should be crimped and soldered for reliability. Make sure
that none of the cable insulation can chafe against exposed metal in the vehicle, causing short circuits to the chassis.
WIRE LENGTH
SYSTEM
AMPERAGE
7-10 ft.
10-13 ft.
13-16 ft.
16-19 ft.
19-22 ft.
22-28 ft.
NOTE: This Matrix is a general rule
of thumb. Please refer to the
manufacturers specific
requirements. P1 specifications
can be found on page 8.
35-50
8
6
4
4
4
2
6
4
4
2
2
0
4
4
2
2
0
0
4
4
2
2
0
0
4
4
2
2
0
0
4
2
0
0
0
0
50-65
68-85
85-105
105-125
125-150
Safe connection sequence:
After all cables are run, connect speaker wires to the speakers and amplifiers, then run and plug in RCA cables. Next, connect all power, ground, and remote turn on
leads. Now connect all +12 volt cables to the amplifier/s and distribution blocks and fuse holders. Finally, connect the main +12 volt cable to the battery, with the main
fuse removed, and we are almost ready to power up the system.
Power up the system:
The following procedure may seem like overkill, but there is nothing more frustrating when turning on a system for the first time, and it does not work properly
immediately.
First, make sure the head unit is off, and turn all level controls to minimum (counterclockwise), including the head unit volume control. Set all equalizers to 0 dB (no
boost), and all crossover frequency controls at approximate frequencies, as recommended by the loudspeaker manufacturer. Set all input selector and crossover
switches as required for the application. Remove all amplifier fuses, and insert the main fuse at the battery. If the fuse does not blow, you can insert the fuse in one of
the amplifiers, and we are ready to turn on the system. Turn the head unit on, insert a CD, or select a radio station, and increase the head unit volume control. If the
system sounds fine, turn off the head unit, and install fuses in the remaining amplifiers, one by one, till the complete system is powered up and functioning properly.
1
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AMPLIFIER FEATURE DESCRIPTIONS
POWERONE AMPLIFIERS:
Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged operation except the mono amps
which are capable of 4, 2 and 1-Ohm loads.
All Crunch amplifiers feature a comprehensive diagnostic system, with speaker lead short circuit, and amplifier DC
faults indicated by the red “PROTECT” LED.
The input sensitivities for rated output powers are variable from 0.2V to 6V on all models.
All crossovers are fully variable in their respective ranges.
Crossover filters are 12dB/Octave.
CAUTION: DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED IMPEDANCE. YOU WILL CAUSE
DAMAGE TO THE AMPLIFIER THAT WILL NOT BE COVERED UNDER THE WARRANTY PRINTED IN THE BACK
OF THE MANUAL. 2 & 4 Channel amps are capable of 4 and 2-Ohms wired stereo and 4-Ohms wired mono
bridged. The mono amps are capable of 4, 2 and 1-Ohm.
A POWER LED indicates the powered up and turned on condition.
P1-650.2 / P1-1050.2 / P1-1650.2 2-CHANNEL AMPLIFIERS
L
L
LEVEL BASS EQ HPF
LPF
X-OVER
MODE
+
- gnd -
HI INPUT
+
6V 0.2V
0dB 9dB 60Hz 12KHz 30Hz 250Hz
FULL LPF HPF MONO
STEREO
R
R
LINE OUT LINE INPUT
TheX-OVER slideswitchselects theinternalcrossoverfunctions:
-Theinputsignalis routeddirectlytotheLINE OUT RCAjacks,regardless oftheX-OVER settingsimplifyingdaisychainingofamplifiers.
-HPF: Selects thebuiltinHIGH PASS filter,variablefrom60Hzto12kHz.
-FULL: Bypasses allcrossovers forfullfrequencyrangeoperation.
-LPF: Selects thebuiltinLOW PASS ,variablefrom30Hzto250Hz.
-BASSEQ:Adjustable45Hzbass boostfrom0dBto9dB.
MODE:Themodeswitchallows youtochooseStereoforfullrange2channeloperationorMONOforbridgingoperation
HIGH INPUT:Ifyourradio/CDplayerdoes nothaveunbalanced(RCA)outputs,youcanusetheHIGHlevel(wire)inputs.
LINEINPUT:Thelineinputaccepts unbalanced(RCA)inputs from0.2Vto6V.
LINEOUTPUT:Thelineoutputpasses throughsignalfromthelineinputs whichallows youtodaisychainmultiple amplifiers fromonesignal.
Note that the LOW PASSsignal is MONO.
-In the LPF position, the HIGH PASSfilter acts as a subsonic filter.
-When the LPF mode is selected, a 0 to +12dB, at 45Hz, BASS-EQ is also switched in.
P1-650.4 / P1-1050.4 / P1-1650.4 4-CHANNEL AMPLIFIERS
CHANNEL 1 / 2
LPF
HPF BASS EQ LEVEL
LINE INPUT
LINE OUT
X-OVER
MODE
Ch2
Ch4
4
2
30Hz 250Hz 60Hz 12KHz 0dB 9dB 6V 0.2V
FULL LPF HPF
LPF
HPF BASS EQ LEVEL
X-OVER
Ch1
Ch3
30Hz 250Hz 60Hz 12KHz 0dB 9dB 6V 0.2V
CHANNEL 3 / 4
FULL LPF HPF
The4channelamps havethesamefeatures as the2channelmodels acceptthatthereare2sets ofcontrols.1setforchannels 1&2and1setforchannels 3&4.
In addition, the 4 channel models have a Mode switch which allows you to select 2 or 4 channel operation. Switch to 2 channel if you only have 1 set of RCA’s in CH 1/2 and
theunitwillautomaticallysupplysignaltochannels 3/4. Select4channelifyouareprovidingRCA’stochannels 1/2and3/4.
TheX-OVER slideswitchselects theinternalcrossoverfunctions:
-Theinputsignalis routeddirectlytotheLINE OUT RCAjacks, regardless oftheX-OVER settingsimplifyingdaisychainingofamplifiers.
-HPF: Selects thebuiltinHIGH PASS filter,variablefrom60Hzto12kHz.
-FULL: Bypasses allcrossovers forfullfrequencyrangeoperation.
-LPF: Selects thebuiltinLOW PASS ,variablefrom30Hzto250Hz.
-BASSEQ:Adjustable45Hzbass boostfrom0dBto9dB.
LINEINPUT:Thelineinputaccepts unbalanced(RCA)inputs from0.2Vto6V.
LINEOUTPUT:Thelineoutputpasses throughsignalfromthelineinputs whichallows youtodaisychainmultipleamplifiers fromonesignal.
Note that the LOW PASSsignal is MONO.
-In the LPF position, the HIGH PASSfilter acts as a subsonic filter.
-When the LPF mode is selected, a 0 to +9dB, at 45Hz, BASS-EQ is also switched in.
P1-1050.1 / P1-2050.1 / P1-3050.1 MONO BLOCK AMPLIFIERS
OUTPUT INPUT
REMOTE
CONTROL
BASS
BOOST SONIC PASS
SUB
LOW
LEVEL
POWER
L
L
PROTECT
0dB 9dB 15Hz 55Hz 40Hz 150Hz 6V 0.2V
R
R
-TheLINE INPUT signalis routeddirectlytotheLINE OUT RCA jacks,regardless oftheX-OVER settingsimplifyingdaisychainingofamplifiers.
-SUBSONIC:Allows youtoadjustthecrossoverfilterfrom15Hzto55Hz.
-LOWPASS:Allows yotoadjusttheLOW PASScrossoverfilterfrom40Hzto150Hz.
LEVEL: Adjusts theinputsensitivityfrom0.2volts to6volts.
BASSBOOST:45Hzbass boostadjustablefrom0dbto9dB.
REMOTE CONTROL:This is theinputjackfortheremoteLevelcontrol.
LINE INPUT:Thelineinputaccepts unbalanced(RCA)inputs from0.2Vto6V.
LINE OUTPUT:Thelineoutputpasses throughsignalfromthelineinputs whichallows youtodaisychainmultiple amplifiers fromonesignal.
The P1-1050.1 is stable to 2-Ohms.
The P1-2050.1 & P1-3050.1 are stable to 1-Ohm.
Operating the amp below 1-Ohm can cause damage to the amp not covered in the warranty.
P1-5050.5 5-CHANNEL AMPLIFIERS
3/4 CH CONTROLS
1/2 CH CONTROLS
CH5 CH4 CH2
MODE
LEVEL
6V 0.2V
HPF
LEVEL
HPF
REMOTE
L
4CH
5CH
FULL
FULL
HPF
HPF
10Hz 150Hz
10Hz 150Hz
6V 0.2V
X-OVER
X-OVER
R
15Hz 55Hz
0dB 12dB
BASS EQ
5 CH CONTROLS
6V 0.2V
LEVEL
30Hz 150Hz
LPF
POWER
PROTECT
CH5 CH3 CH1
SUBSONIC
The5channelamphavethesamefeatures as the4channelmodels acceptthatthereis anadditionalsetofcontrols forchannel5
In addition, the 5 channel models have a Mode switch which allows you to select 4 or 5 channel operation. Switch to 4 channel if you only have 2 sets of RCA’s in CH1-2 and
CH3-4andtheunitwillautomaticallysupplysignaltochannel5. Select5channelifyouareprovidingRCA’stochannels 1-5.
TheX-OVER slideswitchselects theinternalcrossoverfunctions:
-HPF: Selects thebuiltinHIGH PASSfilter,variablefrom10Hzto150Hz.
-FULL: Bypasses allcrossovers forfullfrequencyrangeoperation.
-LPF: Selects thebuiltinLOW PASS,variablefrom30Hzto150Hzforchannel5only.
LINE INPUT:Thelineinputaccepts unbalanced(RCA)inputs from0.2Vto6V.
SUBSONIC:Is adjustablefrom15Hzto55Hzforthechannel5only.
BASSEQ:Is adjustablefrom0dBto12dBforchannel5only.
REMOTE:this is usedfortheBass Remotemodule.
2
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P1-650.2 / P1-1050.2 / P1-1650.2 2 CHANNEL AMPLIFIER APPLICATIONS
FULL RANGE STEREO
This is themostbasicapplicationfortheP1Series 2channelamplifiers.
4. MODE:
ShouldbeintheSTEREOposition.
5. Line Level:
1. Interconnectcable checklist:
ConnecttheLINEINPUTStotheRadio/CD withgoodqualityRCAcables.
2. CrossoverSwitch:
Refertothesection“Setting up systems after installation for best performance”
TheX-OVERswitchmustbeintheFULLposition.
3. Crossoverfrequency controlchecklist:
N/Aforfullrangeoperation.
NOTE:Minimum final loudspeakerimpedances:
4 & 2 Ohms stereo mode or 4-Ohms mono mode
This amplifier will not do 1 Ohm stereo or 2/1 Ohm mono operation.
FULL RANGE
SPEAKERS
FULL RANGE
STEREO LINE INPUT
POWERONE
TO BATTERY +12v
VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
MONO
This application illustrates the basic mono bridging method for all Crunch
amplifiers.
Switch setting checklist:
-TheAMPLIFIERX-OVERswitchshouldbeintheLPF positionandtheMODE
shouldbeintheMONO position.
Interconnectcable checklist:
A MONO signal source is required, such as would be available from the mono
sub bass output of an active crossover, whether stand alone, or built into a head
unit or equalizer. Important: Do not be tempted to connect the hot, or positive
outputs, from any source together to obtain a mono signal, as this could very
welldamagetheoutputstageofthatsource.
It is necessary to feed the SAME signal to both left and right inputs via a Y-
adapter RCAcable. Connect the mono speaker positive terminal to the LEFT -,
andits negativeterminaltoRIGHT+.
Crossoverfrequency controlsetting checklist:
LPF:11o’clock
Minimum final loudspeaker impedance:
- 4 ohm mono.
MONO SPEAKER
FULL RANGE
MONO LINE INPUT
VIA Y-ADAPTER
FROM MONO SOURCE
POWERONE
TO BATTERY +12v
VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
The HIGH LEVEL inputs are used when the radio/CD player does not have RCA cable outputs. You can connect the radio/CD player speaker wires directly to the
amplifier via the high Level Inputs.
Use this connector for 2 CH amplifiers
GRAY: CH 1 Speaker Input +
BROWN: CH 1 Speaker input -
Black: Chassis Ground
GREEN: CH 2 Speaker Input -
White: CH 2 Speaker Input +
3
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P1-650.4 / P1-1050.4 / P1-1650.4 4-CHANNEL AMPLIFIER APPLICATIONS
4 CHANNEL FULL RANGE SYSTEM
Here we show how to use the 4 channel amplifiers as straight forward discrete 4
channelfullrangeunits.TheMODE switchshouldbein4CH.
- HI PASS:N/A
- LOW PASS:N/A
Interconnectcable checklist:
-Connectthefourinputs oftheamplifiertoaRadio/CDwithqualityRCAcables.
Channels3/4:
- HI PASS:N/A
- LOW PASS:N/A
Switch setting checklist:
- 1/2CHX-OVER: FULL
- 3/4CHX-OVER: FULL
Level control checklist:
-Refertothesection“Setting up systems after installation for best performance”
Crossoverfrequencycontrol checklist:
Channels1/2:
Minimum final loudspeakerimpedances:
- 2 ohm per channel.
POWERONE
FULL RANGE
STEREO LINE
INPUTS
2 or 3 CHANNEL SYSTEM
Here we show how to use the 4 channel amplifiers as a 3 channel unit by taking
advantageofthemonobridgingcapabilityofallCrunchamplifiers.
Switch setting checklist:
- 1/2CHX-OVER: FULL
- 3/4CHX-OVER: LPF
The following example shows how to create a 3 channel system by mono
bridging channel pair 3 / 4. In order to create a 2 channel system, simply follow
theexampletoalsomonobridgechannelpair1/2.
Crossoverfrequencycontrol checklist:
Channels1/2:
- HI PASS:N/A
Interconnectcable checklist:
-MODE:Setat4
- LOW PASS:N/A
- Connect the inputs of channel pair 1/2 to a suitable stereo source, e.g. a head
unitwithgoodqualityRCAcables.
Channels3/4:
- HI PASS:N/A
- LPF:11 o’clock
-AMONO signal source is required to bridge channel pair 3/4, such as would be
available from the mono sub bass output of an active crossover, whether
standalone, or built into a head unit or equalizer. If you only have 1 set of RCA
outputs from your headunit, you can simply connect those to the inputs for ch
1/2 and switch the MODE to 2ch. The amplifier will auto sum the signal and
providemonooutputforbridgedchannels 3/4.
TIP: If you are using the mono sub bass output of an active crossover, there is
nothing wrong with switching in the low pass filter in these amplifiers for a
steeperlowpass rolloff.
Important: Do not be tempted to connect the hot, or positive outputs, from any
source together to obtain a mono signal, as this could very well damage the
outputstageofthatsource.
Level controlchecklist:
-Refertothesection“Setting up systems after installation for best performance”
- It is necessary to feed the SAME signal to both left and right inputs via a Y-
adapterRCAcable.
- Connect the mono speaker positive terminal to the CH4 +, and its negative
terminaltoCH3-as shown.
Minimum final loudspeaker impedances:
- 2 ohm per channel in stereo mode.
- 4 ohm mono bridged.
MONO
SUBWOOFER
POWERONE
FULL RANGE
STEREO LINE
INPUTS
MONO LINE INPUT
(Unless using procedure
listed above for 3ch)
4
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P1-650.4 / P1-1050.4 / P1-1650.4 4-CHANNEL AMPLIFIER APPLICATIONS
Front/Rear high pass, using a 2 channel amplifier for mono sub bass
The combination of a 2 and a 4 channel amplifier, utilizing their built in
crossovers, makes it a snap to put together a full system with front and rear
highs, with mono sub bass.
Channels 1/2:
- HI PASS: 100 Hz
LOW PASS: N/A
Interconnect cable checklist:
Channels 3/4:
- HI PASS: 100 Hz
- LOW PASS: N/A
- Using good quality RCA cables, feed the front and rear outputs of a head
unit to the inputs of the 4 channel amplifier as shown.
- Also connect the LINE OUT of the 4 channel amplifier to the LINE INPUT of
the 2 channel amplifier as shown.
2 channel bass amplifier:
- HI PASS (Subsonic filter): 10 Hz to 40 Hz
- LOW PASS: 80 Hz
Mono bass woofer wiring:
Connect the mono speaker positive terminal to the Right +, and its negative
terminal to Left -.
Please note that these frequency points are suggestions only. Refer to the
loudspeaker manufacturer specifications and the section “Setting up systems
after installation for best performance”
Switch setting checklist:
4 channel highs amplifier:
- 1/2CH X-OVER: HPF
- 3/4CH X-OVER: HPF
Level control checklist:
- Refer to the section “Setting up systems after installation for best
performance”
2 channel bass amplifier:
- X-OVER switch: LPF
Minimum final loudspeaker impedances:
- 2 ohm per channel in stereo mode.
- 4 ohm mono bridged.
Crossover frequency control checklist:
- 4 channel highs amplifier:
FULL RANGE
STEREO LINE
INPUTS
POWERONE
MONO SUBWOOFER
STEREO
INTERCONNECT
RCA CABLE
POWERONE
TO BATTERY +12v
VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
5
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P1-1050.1 / P1-2050.1 / P1-3050.1 MONO AMPLIFIER APPLICATION
Basic application
These sub bass amplifiers can be used in any of the bi-amplification systems described in
this manual,replacingthe2channelamplifiers as pertheillustrations.
Crossoverfrequency control checklist:
LOW PASS:40Hz to 150Hz
SUBSONIC:15Hz to 55 Hz
BASSEQ: 0 to +9dB
Interconnect cable checklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA cables.
ConnecttheLINEOUTtotheinputs ofthesystemhighs amplifier.
Level control checklist:
Refertothesection“Setting up systems after installation for best performance”
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,
simplifyingthehookupofmultiplespeakers.Theseamps aremono,1channel,amplifiers
which have multiple positive and negative connections for ease of wiring. The 2 positives
arethesameinternallyandthe2negatives arethesameinternally.
Minimum final loudspeakerimpedance:
P1-1050.1 = 2-Ohms
P1-2050.1 & P1-3050.1 = 1-Ohm
MONO
SUBWOOFER
M
IN
M
A X X
POWERONE
TO BATTERY +12v
VIA FUSE
REMOTE TURN-ON
DESIGNATED
MONO OUTPUT
FROM HEAD UNIT
CHASSIS GROUND
POWER INPUT
FUSE
SPEAKER OUTPUT
-
GND REM BATT+12V
+
+
-
FULL RANGE
STEREO LINE INPUT
Y-ADAPTOR
NOT USED
Note: You can use the Radio/CD designated mono line output or a full range stereo line output.
For full range stereo line output, you will need an optional “Y-Adaptor” as shown.
6
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P1-5050.5 5-CHANNEL AMPLIFIER APPLICATION
Basic application
Here we show how to use the channel amplifier as straight forward discrete 5
channelfullrangeunits.
Channels 3/4:
- HI PASS:N/A
- LOW PASS:N/A
Interconnectcable checklist:
-Connectthefourinputs oftheamplifiertoaRadio/CDwithqualityRCAcables.
Level controlchecklist:
-Refertothesection“Setting up systems after installation for best performance”
Switch setting checklist:
- 1/2CHX-OVER: FULL
- 3/4CHX-OVER: FULL
Minimum final loudspeakerimpedances:
- 2-Ohms per channel.
Crossoverfrequency controlchecklist:
Channels 1/2:
- HI PASS:N/A
- LOW PASS:N/A
DESIGNATED MONO
CHANNEL 5 INPUTS
NPUT
MONO
SUBWOOFER
FULL RANGE
STEREO LINE
INPUTS
POWERONE
7
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8
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SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE
P1-650.2 / P1-1050.2 / P1-1650.2 / P1-650.4 / P1-1050.4 / P1-1650.4 / P1-5000.5
General:
At this point you are ready to get more specific on the settings for your amplifier.
High Pass:
-When in HPF operation, this setting acts as a low frequency cut off for your system reproduction. The point that you set it at cuts off any frequencies from reproduction beyond this point.
The 12 o’clock position is a great starting point. EXAMPLE: If you adjust the HPF to 100Hz, the amplifier will not play frequencies below 100Hz but will play frequencies from 100Hz to the
highest frequency the amplifier is capable of reproducing.
-When in LPF operation, this setting acts as a low frequency cut off for your system reproduction aka Subsonic Filter. The point that you set it at cuts off any frequencies from
reproduction beyond this point. The 12 o’clock position is a great starting point. EXAMPLE: If you adjust the HPF to 60Hz, the amplifier will not play frequencies below 60Hz but will play
frequencies from 60Hz to the chosen Low Pass frequency.
-When in FULL operation, the LPF crossover is bypassed.
Bass EQ:
This setting is a fixed bass boost at 45Hz that is variable from 0-9dB. This feature provides impact to your bass, but if not adjusted correctly, it can be over used and cause damage to
your speakers and amplifiers. It is best to slowly turn this setting clockwise until the desired punch is felt. It is not recommended to exceed the 12 o’clock position unless listening at a low
volume or a low recording quality as this can result in high distortion and possibly clipping.
Low Pass:
The LPF control acts as a ceiling and doesn’t allow frequencies to the right of the desired setting to be reproduced. Turning the potentiometer all the way to the right is a great starting
point. EXAMPLE: If you adjust the LPF to 120Hz, the amplifier will not play frequencies above 120Hz but will play frequencies from 120Hz to the chosen Hi Pass or Subsonic frequency.
-When in HPF operation, this setting is bypassed.
Level Control Setup:
Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with to use as a reference, and turn the
head unit volume control to about 80% of its full setting. The system sound level will of course be very low, and the following procedures will help you to match the amplifier input
sensitivities properly to the head unit output signal level.
It is important to match the amplifier LEVEL input sensitivity to the Radio/CD output sensitivity. This can be located in the Radio/CD manual.
If the Radio/CD output sensitivity is 2 volts, then adjust the amplifier LEVEL input to 2 volts.
If you are not sure what the Radio output sensitivity is, follow these general guide lines:
Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection, you will need to turn the Level to the
left a bit and then try again. If you reach a point where the output does not increase, stop turning the Level control to the right as the amplifier/speaker combo has reached its maxx
output in this application.
2 or 3 way active systems (all):
Always startwiththebass,orlowfrequencyamplifieras areference,byturningits controluptothepointwheredistortionis audible,andbackitoffsome.
Nowadjustthelevelcontrolforthehighs ortweeterchannels ina2wayactivesystem,tobalancethehighs tolows.
In a 3 way active system, match the midrange level to the bass, and then the highs to the midrange and bass. It may be necessary to perform a few iterations of the midrange and highs level
controlsettings toachieveasatisfactorysoundbalance.
P1-1050.1 / P1-2050.1 / P1-3050.1
General:
At this point you are ready to get more specific on the settings for your amplifier.
Subsonic:
This setting acts as a low frequency cut off for your system bass reproduction. The point that you set it at cuts off any frequencies from reproduction beyond this point. The 12 o’clock
position is a great starting point. EXAMPLE: If you adjust the Subsonic to 25Hz, the amplifier will not play frequencies below 25Hz but will play frequencies from 25Hz to the chosen Low
Pass frequency.
Bass Boost:
This setting is a fixed bass boost at 45Hz that is variable from 0-9dB. This feature provides impact to your bass, but if not adjusted correctly, it can be over used and cause damage to
your subwoofers and amplifiers. It is best to slowly turn this setting clockwise until the desired punch is felt. It is not recommended to exceed the 12 o’clock position unless listening at a
low volume or a low recording quality as this can result in high distortion and possibly clipping.
Low Pass:
The LPF control acts as a ceiling and doesn’t allow frequencies to the right of the desired setting to be reproduced. The 12 o’clock position is a great starting point. EXAMPLE: If you
adjust the Low Pass to 80Hz, the amplifier will not play frequencies above 80Hz but will play frequencies from 80Hz to the chosen Subsonic frequency.
Level Control Setup:
Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with to use as a reference, and turn the
head unit volume control to about 80% of its full setting. The system sound level will of course be very low, and the following procedures will help you to match the amplifier input
sensitivities properly to the head unit output signal level.
It is important to match the amplifier LEVEL input sensitivity to the Radio/CD output sensitivity. This can be located in the Radio/CD manual.
If the Radio/CD output sensitivity is 2 volts, then adjust the amplifier LEVEL input to 2 volts.
If you are not sure what the Radio output sensitivity is, follow these general guide lines:
Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection, you will need to turn the Level to the
left a bit and then try again. If you reach a point where the output does not increase, stop turning the Level control to the right as the amplifier/subwoofer combo has reached its maxx
output in this application.
Sit back and enjoy the music!
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TROUBLESHOOTING A SYSTEM
The key to finding the problemin a misbehaving sound system is to isolate parts of that system in a logical fashion to track down the fault.
Descriptionof the PROTECTsystem built into all Crunchamplifiers
The diagnostic system will shut down the amplifier, until reset by turning the head unit off, and back on. This state of affairs will be indicated by the front panel PROTECT
LEDlightingupunderthefollowingconditions:
1-Asortcircuitontheloudspeakerleads.
2-Aninternalamplifierfaultthatcauses aDCoffsetontheloudspeakeroutput.
Shouldtheamplifiergointoprotectmode,simplydisconnectallRCAandspeakerleads,whilekeeping+12volt,powergroundandremoteleads connected.
1.Nowturntheamplifierbackon,andifthediagnosticLEDlights,theamplifierhas aninternalfault.
2.Ifnot,plugtheRCAcables back,andresettheamplifier.Ifitgoes intodiagnosticnow,thefaultlies intheinput,eitherwithbadcables orsourceunit.
3. If the amplifier seems fine with RCAcables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic
system.
Amplifierheatsink overheating
Theamplifiers willshutdownwhentheheatsinktemperaturereaches 80degrees centigrade,andturnbackononcetheunithas cooleddownbelowthatpoint.
Causes of overheating:
1-Inadequatecooling-relocateorremounttoprovidebetternaturalairflowoverthefins.
2 - Driving high power levels into low impedances - back off on the volume control, and/or make sure you are not loading the amplifier with less than the recommended
loudspeakerimpedance.
Low output power
1-Checkthatlevelcontrols havebeensetupproperly.
2-Makesurethatthebatteryvoltage,as measuredattheamplifier’s +12voltandgroundterminals,is 11volts ormore.
3-Checkall+12voltandgroundconnections.
Fuses blowing
1-Theuseofloudspeakerimpedances belowtherecommendedminimums willdrawmorecurrent-check.
2-Ashortonthemain+12voltcablefromthebatterytothevehiclechassis willcausethemainfusetoblow.
3-Ifanamplifierfuseblows continually,withonly+12volt,groundandremoteleads connected,theamplifiermaybefaulty.
System does not turn on
1-Checkallfuses.
2-Checkallconnections.
3 - Measure the +12 volt and remote turn on voltages at the amplifier terminals. If these are non existent or low, take voltage measurements at fuse holders, distribution
blocks,theheadunit’s +12voltandremoteleads tolocalize theproblem.
Noise problems
Systemnoisecanbedividedintotwocategories,hiss,andelectricalinterference.
Hiss, or white noise
1 - High levels of white noise usually occurs when amplifier level controls are turned up too high - readjust according to the procedures in section ”Setting up systems after
installation for best performance”
2-Anothermajorproblemthatcancauseexcessive hiss,is anoisyheadunit-unplugtheamplifierinputRCAcables,andifthehiss levelreduces,thesourceunitis atfault.
Electricalinterference
The inside ofanautomobile is a veryhostile electricalenvironment.The multitude ofelectricalsystems, suchas the ignitionsystem, alternator, fuelpumps, airconditioners,
tomentionjusta few, create radiatedelectricalfields, as wellas noise onthe +12voltsupplyandground. Remembertoisolate the problem-firstunplugamplifierinputRCA
cables,ifthenoiseis stillpresent,checkthespeakerleads,ifnot,plugtheRCA’s back,andinvestigatethesourcedrivingtheamplifier,onecomponentatatime.
Aticking or whine that changes with engine RPM:
1-This problemcouldbecausedbyradiationpickupofRCAcables tooneartoafuelpumporadistributor,forinstance,-relocatecables.
2-Checkthattheheadunitgroundis connectedstraighttothevehiclechassis,anddoes notusefactorywiringforground.
3-Trytosupplytheheadunitwithaclean+12voltsupplydirectlyfromthebattery+,insteadofusingasupplyfromtheindashwiring/fusebox.
Aconstant whine:
This typeofnoisecanbemoredifficulttopinpoint,butis usuallycausedbysomekindofinstability,causingoscillations inthesystem.
1-Checkallconnections,especiallyforgoodgrounds.
2-Makesurethatnospeakerleads areshortingtoexposedmetalonthevehiclechassis.
3-RCAcables arenotorious fortheirproblematicnature,socheckthatthesearegood,inparticulartheshieldconnections.
We have also provided several videos that will help you with your battery,
alternator and even Big 3 upgrades at www.youtube.com/maxxsonicsusainc .
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Maxxsonics Limited Warranty
As the manufacturer of Maxxsonics, MB Quart, Autotek, Crunch and Hifonics car audio
products, Maxxsonics USA Inc. Warrants to the original consumer purchaser the amplifier
to be free from defects in material and workmanship for one (1) Year from date of purchase.
All other parts and accessories of the system are warrantied to be free from defects in
material and workmanship for one (1) year from date of purchase. Maxxsonics will
repair or replace at it’s option and free of charge during the warranty period, any system
component that proves defective in materials and workmanship under normal installation,
use and service provided that the product is returned to the authorized Maxxsonics dealer
from where it was purchased. A photo copy of the original receipt must accompany the
product being returned.
Valid purchase receipts will contain the name and address of the authorized reseller.
Any damage to the product as a result of misuse, abuse, accident, incorrect wiring,
improper installation, alteration of date code or bar code labels, revolution, natural
disaster, or any sneaky stuff because someone messed up, repair or alteration out side
of our factory or authorized service centers and any thing else you have done that you
should not have done is not covered.
This warranty is limited to defective parts and specifically excludes any incidental
or consequential damages connected therewith. This warranty is not to be construed
as an insurance policy.
Warranty on installation labor, removal, re-installation and freight charges are not the
responsibility of Maxxsonics USA Inc.
Warranty products damaged as a result of insufficient or improper packing materials
are not covered by this limited warranty and such damaged product will be returned
“as is” at the expense of the owner.
FOR EXTENDED WARRANTY INFORMATION, PLEASE VISIT
WWW.MAXXWARRANTY.COM
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PART#: S1111
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