Rockford Fosgate Stereo Amplifier 100ix User Guide

2-CHANNEL DSM AMPLIFIERS  
PUNCH 40ix / PUNCH 60ix  
PUNCH 100ix / PUNCH 200ix  
INSTALLATIO N & O PERATIO N  
MANUAL  
®
®
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Dear Customer,  
Congratulations on your purchase of the world's finest brand of car audio  
amplifiers. At Rockford Fosgate we are committed to musical reproduction at its  
best, and we are pleased you chose our product. Through years of engineering  
expertise, hand craftsmanship and critical testing procedures, we have created a  
wide range of products that reproduce music with all the clarity and richness you  
deserve.  
For maximum performance we recommend you have your new Rockford Fosgate  
product installed by an Authorized Rockford Fosgate Dealer, as we provide  
specialized training through Rockford Technical Training Institute (RTTI). Please  
read your warranty and retain your receipt and original carton for possible future  
use.  
Toadd thefinishingtouch toyour new Rockford Fosgateimageorder your Rockford  
accessories, which include everything from T-shirts and jackets to hats and  
sunglasses.  
To get a free brochure on Rockford Fosgate products and Rockford accessories, in  
the U.S. call 602-967-3565 or FAX 602-967-8132. For all other countries, call  
+001-602-967-3565 or FAX +001-602-967-8132.  
PRACTICE SAFE SOUND™  
CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS  
OVER100dBMAYCAUSEPERMANENTHEARING LOSS.HIGH  
POWERED AUTO SOUND SYSTEMS MAY PRODUCE SOUND  
PRESSURE LEVELS WELL OVER 130dB. USE COMMON SENSE  
AND PRACTICE SAFE SOUND.  
If, after readin g your m an ual, you still h ave question s regardin g th is  
product, we recom m en d th at you see your Rockford Fosgate dealer. If you  
n eed furth er assistan ce, you can call us direct at 1-800-795-2385. Be sure to  
h ave your serial n um ber, m odel n um ber an d date of purch ase available  
wh en you call.  
Th e serial n um ber can be foun d on th e outside of th e box. Please record it  
in th e space provided below as your perm an en t record. Th is will serve as  
verification of your factory warran ty an d m ay becom e useful in recoverin g  
your am plifier if it is ever stolen .  
Serial Num ber: ____________________  
Model Num ber: ____________________  
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TABLE O F CO N TEN TS  
Introduction ...................................................................................... 1  
Punch 2-Channel Amplifier Accessory Pack ...................................... 1  
Rockford Fosgate Accessories............................................................ 2  
Technical Design Features ................................................................ 3  
Design Features................................................................................. 6  
Installation Considerations ................................................................ 8  
Mounting Location ............................................................................ 9  
Battery and Charging....................................................................... 10  
Wiring the System ........................................................................... 10  
Using the XCard .............................................................................. 13  
Basic Connections........................................................................... 14  
System Diagrams............................................................................. 18  
Troubleshooting .............................................................................. 22  
Dynamic Power Measurements ....................................................... 24  
Specifications .................................................................................. 26  
Warranty Information ...................................................................... 28  
G E T T I N G ST A R T E D  
Welcome to Rockford Fosgate! This manual is designed to provide  
information for the owner, salesperson and installer. For those of  
you who want quick information on how to install this product,  
please turn to the Basic System Diagrams in the Installation section  
of this manual. Other information can be located by using the Table  
of Contents. We, at Rockford Fosgate, have worked very hard to  
make sure all the information in this manual is current. But, as we  
are constantly finding new ways to improve our product, this  
information is subject to change without notice.  
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I N T R O D U C T I O N  
Rockford engineers designed the Punch 2-channel amplifiers to  
withstand the rugged automotive environment while delivering  
superior sound quality in a flexible, reliable, and efficient pack-  
age. A grounding technique called TOPAZ was used to eliminate  
noise problems associated with car audio systems, while flexibil-  
ity was accomplished with the use of a built-in XCard. Reliability  
was accomplished with the use of protection circuits called RTP  
and NOMAD, while MOSFET and DSM technology improve  
amplifier efficiency. The result of these components give the  
Punch amplifier awesome sound quality in a “Bullet Proof”  
package. An explanation of these technologies, some exclusively  
designed by Rockford, are described in the Technical Design  
Features.  
P U N C H 2-CHANNEL AM P LI FI ER  
AC C ESSO RY P AC K  
The accessory pack shipped with the Punch 2-channel amplifiers  
includes the mounting hardware necessary to secure them to the  
vehicle as well as attaching the end caps.  
Installation & Operation Manual  
Punch Verification Certificate  
(1) 17' (518.16cm) Red Power Wire  
(1) 12' (365.76cm) Remote Turn-On Wire  
(1) 1.5' (45.72cm) Black Grounding Wire  
(1) Female Connector for Remote Turn-On Wire  
(1) Ring Terminal for Ground Wire  
(1) Ring Terminal for Battery Post  
(1) ATC Inline Fuseholder (Punch 40ix, 60ix, 100ix)  
(1) AGU Inline Fuseholder (Punch 200ix)  
(6) Hex Head Screws for speaker and power connectors  
(4) Mounting Screws for end caps  
(4) Mounting Screws for amplifier  
(1) Allen Wrench 7/64"  
(1) Allen Wrench 3/32"  
– 1 –  
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RO C KFO RD FO SG AT E AC C ESSO RI ES  
The following accessories were designed to enhance the perfor-  
mance of the Punch 2-channel amplifiers.  
Energy Storage Capacitor  
The Punch capacitors are used to provide extra current needed by  
amplifiers to reproduce musical transients. The Punch Caps also  
have the natural ability to filter AC ripple caused by the alternator,  
reducing the chance of noise in the system. The Punch Caps will  
maximize both the sound quality and performance that Rockford  
Fosgate amplifiers can deliver.  
Punch Link (FG-LINK)  
The Punch Link is a specially cast heatsink interconnect which  
allows you to join any of our current Punch or Punch Power  
amplifiers together. While providing additional cooling through  
the coupling process, the Punch Link adds the finishing touch by  
giving you the look of one awesome amplifier.  
XCard  
Additional crossover card frequencies are available for special-  
ized requirements. You can get the following XCards from your  
Authorized Rockford Fosgate Dealer.  
XM50  
XM70  
XM100 = 100Hz  
XM150 = 150Hz  
XM200 = 200Hz  
=
=
50Hz  
70Hz  
XM275 = 275Hz  
XM400 = 400Hz  
XM4.5k = 4,500Hz  
XM6.5k = 6,500Hz  
XM00 = Blank card for  
custom crossover  
– 2 –  
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TECH NICAL DESIGN FEATURES  
N TOPAZ (Tracking Operation Pre-Amplifier Zone)  
The TOPAZ (Tracking Operation Pre-Amplifier Zone) circuitry  
solves ground loop noise problems common to automotive  
amplifier design. This innovative new development allows vastly  
improved isolation of the input signal grounds from the power  
supply ground of the amplifier. This is accomplished by allowing  
the source unit to control the potential “environment” of the  
entire input structure or “zone” of the amplifier. This process  
improves the noise rejection of the amplifier by 30-40dB – an  
astounding 30-100 times better than amplifiers without TOPAZ.  
THE RESULT: Elimination of troublesome ground loop noise  
between source and amplifier.  
N RTP (Real Time Protection)  
NOMAD (NOn-Multiplying Advanced  
Decision)  
The Punch and Power amplifiers use an analog computer  
process to maximize safe output power under all operating  
conditions. Rockford Fosgate pioneered and developed RTP  
(Real Time Protection), a crucial element in the performance  
edge of our amplifiers. The innovative NOMAD (NOn-Multiply-  
ing Advanced Decision) system is the most sophisticated version  
of this technique ever used, bringing previously unavailable  
levels of accuracy, stability, temperature immunity and reliabil-  
ity to this critical process. NOMAD makes advanced decisions  
based on device voltagesto preciselycontrolthe awesome levels  
of current available in the output MOSFETs to safe values but  
only when absolutely needed.  
THE RESULT: Extremely fast protection system that always  
protects the amplifier and never degrades the sound.  
– 3 –  
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N DSM (Discrete Surface Mount) Technology  
The DSM (Discrete Surface Mount) manufacturing process com-  
bines the advantages of both discrete components and integrated  
circuitry. Rockford Fosgate is the only American amplifier manu-  
facturer to have invested millions into this process. DSM compo-  
nents differ from conventional discrete components in three  
different ways. They are more compact, more rugged, and they  
take much better advantage of the PC board to allow them to get  
rid of any heat they generate. Using them wherever appropriate  
allows the advantages associated with discrete circuitry to be  
retained while also providing room for both highly advanced  
processing features and generous PC board copper paths where  
needed. Their short lead-out structures allow maximum audio  
performance and highest signal-to-noise ratios to be obtained in  
amplifiers of desirable package size without resorting to ampli-  
fier-on-a-chipshortcuts. These advantages are shown below in  
Figure 1.  
Component  
Figure 1  
Solder  
Solder  
Thru-Hole  
Surface Mount  
THE RESULT: Fewer connections, improved reliability, shorter  
signal paths, superior signal-to-noise ratio and awesome sonic  
performance.  
– 4 –  
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N XCard (Internal Crossover)  
The Punch and Power amplifiers utilize internal active crossovers.  
These crossovers have many performance advantages such as using  
discrete components for exact frequency adjustments which are far  
superior to potentiometers. Additionally, the XCard can be config-  
ured for high-pass, low-pass and full range operation. With slight  
modifications, manycrossoverfrequenciesand slope configurations  
can be achieved.  
THE RESULT: Increased system design flexibility with a precise  
electronic crossover without the limitations of conventional poten-  
tiometer designs.  
N MOSFET Devices  
Rockford Fosgate is one of the few manufacturers in the sound  
community to utilize MOSFET devices in both the power supply  
and the output stages. MOSFET (Metal Oxide Semiconductor  
Field Effect Transistor) devices offer several important inherent  
advantages over the 30 year old technology of bi-polar design.  
These advantages include: thermal stability, switching speed,  
ultra low output impedance and wider bandwidth linearity. In  
addition, MOSFETs and vacuum tubes share many important  
operating characteristics. However, the MOSFET device is much  
faster, wider in bandwidth, measurably lower in distortion and far  
more linear than vacuum tubes.  
THE RESULT: Operational characteristics of vacuum tubes  
without the performance limitations of tube design.  
– 5 –  
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DESIGN FEATURES  
1. Cast Aluminum Heatsink – The cast aluminum heatsink of the  
Punch amplifier dissipates heat generated by the amplifier's  
circuitry. The inherent advantage of casting provides a 30%  
improvement of cooling over conventional extrusion heatsink  
designs.  
2. End Caps – Interchangeable end caps conceal the wiring and  
input cables, giving the amplifier a clean stealthlook.  
6
6
3
8
7
7
3
8
Speaker  
Speaker  
+
L
+
R
Left  
Gain  
Left  
Input  
Right  
Input  
Right  
Gain  
Treble  
Bass  
9
5
4
LED  
B+  
GND  
REM  
3. Speaker Terminals – The heavy duty, gold-plated terminal block  
connectors (+ and ) will accept wire sizes from 8 AWG to 18  
AWG. These gold-plated connectors are immune to corrosion  
that can cause signal deterioration.  
4. Power Terminals – The power and ground connectors on the  
Punch amplifier are gold-plated and will accommodate up to 8  
AWG wire maximizing the input current capability of the  
amplifier.  
5. REM Terminal – This spade terminal is used for the AP (auto  
power) or remote turn on of the Punch amplifier.  
– 6 –  
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6. RCA Input Jacks – The industry standard RCA jacks provide  
easy connections for signal level input. They are gold-plated to  
resist the signal degradation caused by corrosion.  
7. Input Sensitivity Controls – The input level controls are preset  
for 825mV which will match the output of most source units.  
Theycan be adjusted to match inputlevelsrangingfrom 150mV  
to 3V.  
8. Punch Equalization Controls – The Punch EQ helps correct for  
acoustical deficiencies of the listening environment. The Bass  
control allows a narrow band adjustment of up to 18dB  
centered at 45Hz. The Treble control is a wide band hinged  
adjustment with a maximum of 18dB at 20kHz. The Punch EQ  
can be bypassed by turning the controls to their minimum or  
counterclockwise position.  
9. LED Power Indicator – The LED illuminates when the unit is  
turned on.  
10. XCard (Internal Crossover) – This built-in crossover card is  
configurable for a multitude of operating frequencies. The  
orientation of the card in its socket determines the function of  
high-pass, low-pass, or full range operation.  
®
High-Pass  
Low-Pass  
Full Range  
FULL  
®
M O SFET AM P LIFIER  
D S M  
H P  
LP  
L P  
HP  
N
100 Watts RMS continuous power per  
channel into 4 Ohms with less than 0.05%  
Total Harmonic Distortion from 20-20kHz.  
®
RO CKFO RD CO RP O RATIO N  
M ADE IN THE USA  
10  
XCard  
Front  
XCard  
– 7 –  
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IN STALLAT I O N C O N SI D ERAT I O N S  
The following is a list of tools you will need for installing the Punch  
amplifier:  
Allen wrenches 7/64" & 3/32" (included) Voltmeter  
Wire strippers  
Electric hand drill w/assorted bits  
Wire crimpers  
Battery post wrench  
Wire cutters  
Assorted connectors  
This section focuses on some of the vehicle considerations for  
installing your new Punch amplifier. Checking your battery and  
present sound system, as well as pre-planning your system layout and  
best wiring routes will save installation time. When deciding how to  
lay out your new system, be sure that each component will be easily  
accessible for making adjustments.  
Before beginninganyinstallation, be sure to follow these simple rules:  
1. Be sure to carefully read and understand the instructions before  
attempting to install the amplifier.  
2. For safety, disconnect the negative lead from the battery prior to  
beginning the installation.  
3. For easier assembly, we suggest you run all wires prior to  
mounting your amplifier in place.  
4. Route all of the RCA cables close together and away from any  
high current wires.  
5. Use high quality connectors for a reliable installation and to  
minimize signal or power loss.  
6. Think before you drill! Be careful not to cut or drill into gas tanks,  
fuel lines, brake or hydraulic lines, vacuum lines or electrical  
wiring when working on any vehicle.  
7. Never run wires underneath the vehicle. Running the wires  
inside the vehicle provides the best protection.  
8. Avoid running wires over or through sharp edges. Use rubber or  
plastic grommets to protect any wires routed through metal,  
especially the firewall.  
9. ALWAYS protect the battery and electrical system from damage  
with proper fusing. Install a fuseholder and appropriate fuse on  
the +12V power wire within 18(45.7 cm) of the battery terminal.  
10. When grounding to the chassis of the vehicle, scrape all paint  
from the metal to ensure a good, clean ground connection.  
Groundingconnectionsshould be asshortaspossible and always  
be connected to metal that is welded to the main body, or chassis,  
of the vehicle.  
– 8 –  
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MO UNTING LO CATIO N  
The mountinglocation and position ofyouramplifierwillhave a great  
effect on its ability to dissipate the heat generated during normal  
operation. The design of our cast aluminum heatsink serves to easily  
dissipate the heat generated over a wide range of operating condi-  
tions. However, to maximize the performance of your amplifier, care  
should be taken to ensure adequate ventilation.  
Trunk Mounting  
Mounting the amplifier vertically on a surface with the fin grooves  
running up and down will provide the best cooling of the amplifier.  
Mountingthe amplifieron the floorofthe trunkwillworkbutprovides  
less cooling capability than vertical mounting.  
Mounting the amplifier upside down to the rear deck of the trunk will  
not provide proper cooling and will severely affect the performance  
of the amplifier and is strongly not recommended.  
Passenger Compartment Mounting  
Mounting the amplifier in the passenger compartment will work as  
long as you provide a sufficient amount of air for the amplifier to cool  
itself. If you are going to mount the amplifier under the seat of the  
vehicle, you must have at least 1" (2.54cm) of air gap around the  
amplifier's heatsink.  
Mounting the amplifier with less than 1" (2.54cm) of air gap around  
the amplifier's heatsink in the passenger compartment will not  
provide propercoolingand willseverelyaffectthe performance ofthe  
amplifier and is strongly not recommended.  
Engine Compartment Mounting  
Rockford Fosgate amplifiers should never be mounted in the engine  
compartment. Not only will this void your warranty but could create  
an embarrassing situation caused by the ridicule from your friends.  
– 9 –  
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BATTERY AN D CH ARG IN G  
Amplifiers will put an increased load on the vehicle's battery and  
charging system. We recommend checking your alternator and  
battery condition to ensure that the electrical system has enough  
capacity to handle the increased load of your stereo system. Stock  
electrical systems which are in good condition should be able to  
handle the extra load of any Rockford amplifier without problems,  
although battery and alternator life can be reduced slightly. To  
maximize the performance of your Rockford Fosgate amplifier, we  
suggest the use of a heavy duty battery, high output alternator and an  
energy storage capacitor.  
W I R I N G T H E SYST E M  
CAUTION: Avoid running power wires near the low level input  
cables, antenna, power leads, sensitive equipment or harnesses. The  
power wires carry substantial current and could induce noise into the  
audio system.  
For safety, disconnect the negative lead from the battery prior to  
beginning the installation.  
1. Plan the wire routing. Take care when running signal level RCA  
cablesto keep them close togetherbutisolated from the amplifier's  
power cables and any high power auto accessories, especially  
electric motors. This is done to prevent coupling the noise from  
radiated electrical fields into the audio signal. When feeding the  
wires through the firewall or any metal barrier, protect them with  
plastic or rubber grommets to prevent short circuits. Leave the  
wires long at this point to adjust for a precise fit at a later time.  
2. Prepare the Power cable for attachment to the amplifier by  
stripping 5/8" of insulation from the end of the wire. The use of 8  
gauge power cable can interfere with the installation of the end  
caps. Proper wire dress can prevent this from occurring. To  
prevent the wire from fraying, strip the insulation at a 45° angle.  
Insert the bared wire into the B+ terminal with the long side of the  
insulation on the top. Bend the cable down at a 90° angle. Tighten  
the set screw to secure the cable in place.  
– 10 –  
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Punch 40ix, 60ix, 100ix  
Trim the powercable to within 18"ofthe batteryand installthe  
protective rubber boot, which is packed with the fuseholder,  
over the end of the wire. Strip 3/8" of insulation from the wire  
and insert into the end of the fuseholder, then crimp it in place.  
Slide the rubber boot into place to cover the connection. Use  
the section of cable that was trimmed earlier and connect it to  
the other end of the fuseholder.  
Punch 200ix  
Mount the fuseholder within 18" of the battery using two (2) #8  
screws. Disassemble the fuseholder. You should have 2 black  
plastic end caps, 2 gold-plated fuse clips, a plastic spacer and  
the fuseholder body. Trim the amplifier power cable to reach  
the fuseholder and strip the wire 3/8". Slide one of the end caps  
over the wire (narrow end first) and insert the wire into one of  
the fuse clips. Tighten the set screw. Screw the black end cap  
to the fuseholder body to secure the cable. Use the section of  
cable that was trimmed earlier and connect it to the other end  
of the fuseholder. Install the plastic spacer in the fuseholder  
and attach the cable to the fuseholder body.  
NOTE: The B+ cable MUST be fused 18" or less from the  
vehicle's battery. Install the fuseholder under the hood and  
prepare the cable ends as stated above. Connections should  
be water tight.  
3. Strip 3/8" from the battery end of the power cable and crimp  
the large ring terminal to the cable. Use the ring terminal to  
connect to the battery positive terminal. Do not install the fuse  
at this time.  
4. Prepare a length ofcable to be used forthe ground connection.  
Strip 5/8" of insulation from the end of the cable as described  
previously and connect to the appropriate terminal of the  
amplifier. Prepare the chassis ground by scraping any paint  
from the metal surface and thoroughly clean the area of all dirt  
and grease. Strip the other end of the wire and attach a ring  
connector. Fasten the cable to the chassis using a non-  
anodized screw and star washers.  
– 11 –  
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5. Prepare the REM turn-on wire for connection to the amplifier  
by stripping 5/8" of insulation from the wire end and crimping  
an insulated spade connector in place. Slide the connector  
over the REM terminal on the amplifier. Connect the other end  
of the REM wire to a switched 12 volt positive source. The  
switched signal is usually taken from the source unit's auto  
antenna or the accessory lead. If the source unit does not have  
these outputs available, the recommended solution is to wire  
a mechanical switch in line with a 12 volt source to activate  
the amplifier.  
6. Connectthe source signalto the amplifierbypluggingthe RCA  
cables into the input jacks at the amplifier.  
7. Connect the speakers. Strip the speaker wires 5/8" and insert  
into the appropriate terminal on the amplifier. Insert the bared  
wire into the speaker terminal and tighten the set screw to  
secure into place. Be sure to maintain proper speaker polarity.  
DO NOT chassis ground any of the speaker leads as unstable  
operation may result.  
8. Perform a finalcheckofthe completed system wiringto ensure  
that all connections are accurate. Check all power and ground  
connections for frayed wires and loose connections which  
could cause problems.  
9. After the final inspection is complete, install the power fuse  
and enjoy listening. During the initial listening period, you  
may need to “fine tune” any phasing and level settings within  
your particular vehicle. To aid in this procedure, play a track  
with high musical content and cruise around your neighbor-  
hood. After fully evaluating the transient response of your  
system and making any final adjustments, all your neighbors  
within a 1 mile radius will assume that you have just success-  
fully completed another upgrade to your audio system for  
which they will probably spill thumbtacks on your driveway.  
– 12 –  
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U SI N G T H E XCARD  
The crossover functions are controlled through the use of an  
XCard and can be set for high-pass, low-pass or full range  
operation. Each crossover card has two faces: one face operates  
Full Range, the other has arrows to indicate the edge for selecting  
HP (high-pass) or LP (low-pass) operation. Orient the card with  
the desired operating edge, indicated by the arrow, toward the  
socket terminals inside the amplifier. Firmly, but carefully, plug  
the card into the socket.  
High-Pa ss  
Low-Pa ss  
Full Range  
H P  
LP  
L P  
HP  
FULL  
The crossover point can be altered by changing the resistor value.  
Use the following formula to select the appropriate resistor value  
to be placed on the XCard.  
3386  
= R (in k) for .047µf cap  
The actual formula is:  
f
o
1
R =  
7234  
2πf c  
= R (in k) for .022µf cap  
o
f
o
Crossover Card  
HigPass  
LoPass  
FulRange  
FULL  
Where: R = Ω  
f = desired crossover frequency  
o
c = capacitor in farads  
-6  
ex: .047 x 10 for .047mf cap  
– 13 –  
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BASI C CO N N EC TI O N S  
Power Connections  
LED  
B+  
GND  
REM  
Connect to remote  
turn-on lead of  
source unit.  
Connect to chassis  
ground of vehicle*  
Less than 18"  
P40ix  
P60ix  
- 20A  
- 30A  
P100ix  
P200ix  
- 40A  
- 50A  
Connect to B+ of battery with  
appropriate fuse value.  
*Keep grounds as short as possible.  
– 14 –  
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Stereo Operation  
RCA In p u t  
Speaker  
Speaker  
+
L
+
R
Left  
Gain  
Left  
Input  
Right  
Input  
Right  
Gain  
Treble  
Bass  
+
+
RCA inputs are connected to both left and right channels.  
Gain for left and right channels operate independently.  
Impedance for each channel should be 2minimum.  
XCard can be set for High-Pass, Low-Pass or Full Range.  
– 15 –  
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Mono Operation  
RCA In p u t  
Speaker  
Speaker  
+
L
+
R
Left  
Gain  
Left  
Input  
Right  
Input  
Right  
Gain  
Treble  
Bass  
+
4  
RCA inputs are connected to both left and right channels.  
Gain for left and right channels are set equally to balance  
the subwoofer.  
Impedance for mono channel should be 4minimum.  
XCard can be set for High-Pass, Low-Pass or Full Range.  
– 16 –  
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Stereo/Mono Operation  
RCA In p u t  
Speaker  
Speaker  
+
L
+
R
Left  
Gain  
Left  
Input  
Right  
Input  
Right  
Gain  
Treble  
Bass  
+
+
+
4  
RCA inputs are connected to both left and right channels.  
Gain for left and right channels are set equally to balance  
the subwoofer.  
Impedance for each channel should be 2minimum.  
Impedance for mono channel should be 4minimum.  
XCard is set for Full Range  
– 17 –  
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SYST EM D I AG RAM S  
2-Way System  
100Hz HP or Full Range  
®
XCard  
100Hz  
12dB/octave HP  
4
S
M
PCH-142X  
PCH-142X  
PCH-14X  
PCH-54  
PCH-14X  
PCH-54  
– 18 –  
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3-Way System  
Rear  
100Hz  
Front  
100Hz  
12dB/octave HP  
12dB/octave LP  
®
®
100Hz HP  
100Hz LP  
XCard  
XCard  
4
6
D
S
M
D
S
M
PCH-142X  
PCH-142X  
RFP-812  
8  
PCH-14X  
PCH-54  
PCH-14X  
PCH-54  
RFP-812  
8Ω  
– 19 –  
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4-Way System  
Front  
®
A
P
A
S
S
I
O
N
F
O
R
P
E
R
F
O
R
M
A
N
C
E
100Hz HP  
3
XCard  
®
4
D
S
M
100Hz HP  
12dB/octave HP  
PCH-142X  
PCH-142X  
100Hz HP  
24dB/octave HP  
PCH-14X  
PCH-14X  
PCH-54  
275Hz LP  
PCH-54  
XCard  
RFA-64  
®
100Hz HP  
24dB/octave HP  
RFA-64  
6
275Hz  
100Hz  
D
S
M
24dB/octave HP  
12dB/octave LP  
®
100Hz LP  
RFP-812  
XCard  
8  
30Hz  
12dB/octave HP  
RFP-812  
8Ω  
D®  
S
30Hz  
100Hz  
12dB/octave HP  
12dB/octave LP  
– 20 –  
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4-Way System w/Fadable Rear Stage  
Rear  
Front  
®
®
A
P
A
S
S
I
O
N
F
O
R
P
E
R
F
O
R
M
A
N
C
E
3
®
100Hz HP  
XCard  
4
D
S
M
100Hz HP  
12dB/octave HP  
PCH-142X  
PCH-142X  
PCH-14X  
100Hz HP  
24dB/octave HP  
PCH-14X  
PCH-54  
275Hz LP  
PCH-54  
XCard  
RFA-64  
®
100Hz HP  
24dB/octave HP  
RFA-64  
6
D
S
M
275Hz  
100Hz  
24dB/octave HP  
12dB/octave LP  
®
100Hz LP  
RFP-812  
8  
XCard  
30Hz  
12dB/octave HP  
RFP-812  
8Ω  
D®  
S
30Hz  
100Hz  
12dB/octave HP  
12dB/octave LP  
®
100Hz HP  
XCard  
4
D
S
M
PCH-142X  
PCH-142X  
PCH-14X  
PCH-14X  
PCH-54  
PCH-54  
– 21 –  
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TR O U BL E SH O O T I N G  
Symptom  
Diagnosis  
Remedy  
Amplifier doesnot  
turn on  
Voltage applied to the Check the alternator, bat-  
REM terminal of the tery, fuse, and wiring and  
(Power LED is off) amplifierisnotbetween repair as necessary. If the  
10.5 and 15.5 volts or voltage is above 15.5 volts,  
there is no voltage have the electrical system  
present.  
inspected by an authorized  
car service center.  
Voltage to the B+ termi- Check the alternator, bat-  
nal of the amplifier is tery, fuse, and wiring and  
not between 10.5 and repair as necessary. If the  
15.5 volts or there is no voltage is above 15.5 volts,  
voltage present.  
have the electrical system  
inspected by an authorized  
car service center.  
Amplifier is not prop-  
erly grounded.  
Check wiring and repair as  
necessary.  
Check connections, substi-  
tute with known working  
source and cablesand repair  
or replace as necessary.  
RCA Input from source  
unit is not connected or  
not functioning prop-  
erly.  
Amplifier has no  
sound  
(Power LED is on)  
Check XCard position and  
repair or replace as neces-  
sary.  
XCard is missing or not  
placed properlyin cross-  
over slots.  
Disconnect existing speak-  
ers and test with known  
working speakers and wires.  
If amplifier plays, check and  
repair wiring and installa-  
tion of speakers as neces-  
sary.  
Speaker leads are  
shorted to each other or  
to the chassis of the ve-  
hicle.  
Disconnect existing speak-  
ers and test with known  
working speakers. If ampli-  
fier plays, check and repair  
speakers as necessary.  
Speakers are defective.  
– 22 –  
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Symptom  
Diagnosis  
Remedy  
Readjust input gains of  
amplifier.  
Speaker Output  
Low or Distorted  
Input gain signal for  
amplifier is incorrectly  
set.  
Check system with known  
working source and repair  
or replace original source  
as needed.  
Source unit output too  
low or source unit has  
no output.  
Check XCard position and  
repair or replace as neces-  
sary.  
XCard is missing or not  
placed properlyin cross-  
over slots.  
Check the alternator, bat-  
tery, fuse, and power and  
ground wiring. Repair as  
necessary.  
Low battery voltage or  
large voltage drops to  
the amplifierunderload.  
Voltage spike from out-  
put of preceding com-  
ponent is entering am-  
plifierthrough inputsig-  
nal.  
Disconnectinputsignalto  
amplifier and turn ampli-  
fier on and off. If noise is  
eliminated, connect REM  
lead of amplifier to source  
unit with a delay turn-on  
module.  
Amplifier Noise  
(Turn-on Pop)  
Voltage spike from re-  
mote turn-on lead is  
entering through REM  
input terminal.  
Use a different 12 volt  
source for REM lead of  
amplifier. (i.e., battery di-  
rect)Ifnoise iseliminated,  
use a relay to isolate am-  
plifier from noisy turn-on  
output.  
– 23 –  
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Symptom  
Diagnosis  
Remedy  
Engine Noise  
Noise is radiating into  
RCA signal cable.  
Checkconnections, run the  
RCA cables on a different  
route awayfrom sourcesof  
high voltage.  
Bad componentin the sig-  
nal chain.  
Checkconnections, bypass  
additional components  
(crossoversand equalizers)  
between the source unit  
and the amplifier. Connect  
one component at a time  
to determine the culprit.  
Repair or replace compo-  
nents as necessary.  
Noise is radiating into  
speaker cables.  
Disconnectexistingspeak-  
ers and connect a test  
speaker to the output ter-  
minals of the amplifier. If  
noise is gone, reroute the  
speaker cables away from  
sources of high voltage.  
Multiple grounds in the  
audio system.  
Checkground connections  
and connectamplifiers, sig-  
nal processors, and other  
components to a central  
location or try a different  
grounding point on the  
chassis.  
Ground loop between  
source unit and antenna.  
Check connections, dis-  
connect antenna from  
source unit. Ifnoise isgone,  
install an antenna ground  
loop isolator.  
• If noise persists, see your Authorized Rockford Fosgate Dealer.  
– 24 –  
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D YN AM I C P O W E R M E ASU R E M E N T S  
About the Dynamic Power Measurements  
The Audio Graph PowerCube is a test instrument used to measure the  
output of an amplifier in accordance with IHF-202 industry stan-  
dards. The IHF-202 standard is a dynamic power measurement and  
was developed as a means of measuring power in a manner that best  
represents the Real World operation of an amplifier. Many manufac-  
turers, including Rockford Fosgate, at times will measure amplifier  
power into a fixed resistor (4 Ohm, 2 Ohm). While this method is  
useful in some types of evaluation and testing, it is not representative  
of an amplifier that is connected to a speaker and playing music.  
Music  
Music is dynamic; the sound waves are complex and constantly  
changing. In order to simulate this, the IHF-202 standard calls for the  
input signal to the amplifier to be a 1kHz bursted tone. This signal is  
input (on for 20 milliseconds) and reduced 20dB for 480 millisec-  
onds. The signal is gradually increased in level until the amplifier's  
output exceeds 1% Total Harmonic Distortion (THD). At 1% distor-  
tion becomes audible, therefore, any power produced above that  
level is considered not usable. Many manufacturers represent their  
amplifiers' output power in excess of 10% distortion. They use many  
names for this measurement, such as Total Maximum Power or  
Maximum Output Power. This is not indicative of the actual usable  
output power.  
Listening to Loudspeakers - Not Resistors  
A loudspeaker is not a resistor. A resistor's value (resistance measured  
in ohms) is fixed. A loudspeaker's impedance is dynamic. It is  
constantly changing in value, dependent upon the frequency of the  
input signal. Therefore, measuring power with the amplifier loaded  
into a 4 ohm resistor is not the same as measuring power with the  
amplifier connected to a 4 ohm speaker. Most people do not listen to  
music through a resistor.  
A4 Ohm speakermayexperience a drop in impedance 4-6 timeslower  
than its nominal (printed) impedance. A speaker will also create phase  
shifts in the signal that is passed through it. These phase shifts happen  
because a speaker is an inductor (voice coil) and a capacitor (compli-  
ance of the surround/spider), as well as a resistor (voice coil wire).  
To simulate a speaker the Audio Graph PowerCube measures output  
power into 20 different loads. It tests at 8 Ohms, 4 Ohms, 2 Ohms and  
1 Ohm. Each ofthese impedancesisalso tested at60°, 30°, 0°, +30°  
and +60° phase angles. These different impedances and phase angles  
representthe shiftsin impedance and phase thatcan occurin a typical  
loudspeaker.  
– 25 –  
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Information Cubed  
The data acquired in the testing procedure is then graphed in the form  
of a 3-dimensional cube. Hence the name PowerCube.  
The Phase Angle is expressed on the horizontal axis, the Output  
Voltage is presented on the vertical axis and the Impedance is  
displayed on the Z axis. Output Power, in watts, is listed on the left  
hand side for each impedance at each phase angle.  
AudioGraph – The PowerCube™  
MODEL BEING  
TESTED  
VOLTAGE FROM  
BATTERY  
x2 = STEREO  
MONO = BRIDGED MONO  
Amplifier: PUNCH 200ix 14.4V x 2  
Serial No:  
Rated Power : 100 W @ 4 Ohms  
Owner  
:
ROCKFORD CORPORATION  
860° 84  
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
*
30° 84  
0° 83  
POWER  
IN  
50V  
30V  
30° 84  
60° 85  
WATTS  
{
460° 159  
*
30° 154  
0° 153  
30° 154  
60° 158  
10V  
260° 266  
*
30° 251  
0° 245  
8Ω  
4Ω  
30° 248  
60° 261  
2Ω  
–60° (Cap)  
0°  
1Ω  
160° 378  
*
{
(Ind) +60°  
{
30° 343  
0° 333  
Impedance  
PHASE ANGLES  
30° 339  
60° 373  
Example of a 200ix PowerCube  
What is an Amplifier?  
An amplifier by definition is a voltage generating device, recreating  
the signal which is input to it identically but with increased volume.  
It will be connected to a reactive load (the speaker). The impedance  
of this load and phase of the signal passing through the load will vary,  
dependent upon the frequency of the input signal (music).  
Therefore, a perfect amplifier will be able to maintain the same output  
voltage regardless of load characteristics and will not alter the signal  
it is reproducing. A perfect amplifier when measured by the  
AudioGraph PowerCube would present data that forms a perfect  
cube. Unfortunately, amplifiers are not perfect. The laws of physics  
generally prevent it. A great amplifier is about the best one can hope  
to attain.  
As you can see by the PowerCube and as you will experience by  
listening, your Punch amplifier is a GREAT AMPLIFIER!  
– 26 –  
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– 27 –  
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– 28 –  
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W ARRAN TY IN FO RMATIO N  
Rockford Fosgate warrants all electronics to the original consumer/purchaser to  
be free from defects in materials or workmanship for a period of three (3) years.  
We will cover parts and labor provided the product was purchased from an  
Authorized Rockford Fosgate Dealer. This warranty does not apply to any product  
on which the seals and/or serial number have been broken, removed, tampered  
with, defaced or altered in any manner. This warranty only applies to the original  
consumer/purchaser and is not transferable.  
Electronics found to be defective during the warranty period will be repaired or  
replaced at Rockford Fosgates discretion. Repaired or replaced electronics will  
be covered by the balance of the original warranty period only. Rockford Fosgate  
shall not be responsible for any incidental or consequential damages resulting  
from a defect in electronics. Some states do not allow the exclusion or limitation  
of incidental or consequential damages, so the previous limitation may not be  
applicable.  
The warranty does not cover any appearance item, any cost or expense related to  
the removal or reinstallation of the product, any accessory used in conjunction  
with the product, damage to the product resulting from alteration, accident,  
misuse or abuse, or improper installation. This warranty does not apply if the parts  
or labor, which would otherwise be provided without charge under this warranty,  
are obtained from any source other than Rockford Fosgate or an Authorized  
Rockford Fosgate Service Center.  
This warranty is the only express warranty and does not create any implied  
warranties. Rockford Fosgate limits its obligations under any implied warranties  
under state laws to a period not to exceed the written warranty period. Some states  
do not allow limitation on how long an implied warranty lasts, so the above  
limitation maynotapply. Thiswarrantyappliesonlyto productssold in the United  
States of America or its possessions. For warranty outside the U.S.A., please  
contact the nearest Authorized Rockford Fosgate Dealer. This warranty gives the  
consumerspecific legalrights, and the consumermayhave otherrightswhich vary  
from state to state.  
A defective product must be shipped prepaid to the Authorized Rockford Fosgate  
Dealer from which the consumer purchased the product or to the Rockford  
Fosgate factoryin Tempe, Arizona in the originalfactorycarton orequivalent. Any  
shipping loss or damage will be borne by the consumer or the consumers shipper.  
A consumer returning a product to the factory must call (800) 669-9899 for a  
Return Authorization Number. All shipments shall be clearly marked with the  
Return Authorization Number on the outside of the shipping carton.  
Ship to:  
Rockford Corporation  
Warranty Repair Department  
2055 E. 5th Street  
Tempe, AZ 85281 U.S.A.  
Return Authorization Number:_________________  
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N O T E S  
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N O T E S  
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Rockford Fosgate  
Rockford Corporation  
546 South Rockford Drive  
Tempe, Arizona 85281 U.S.A.  
In U.S.A., (602) 967-3565  
In Canada, Fax Korbon (905) 567-1929  
In Europe, Fax (49) 4207-801250  
In Japan, Fax (81) 559-79-1265  
3/95  
MAN-0915-A  
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