Rockford Fosgate 360.6 User Manual

360.

trans•

ana

6

® ®

car audio

for

fanatics

6-Channel Amplifier
Operation & Installation

®

punch

Dear Customer,
Congratulations on your purchase of the world's finest brand of car audio amplifiers.

At Rockford Fosgate we are fanatics about 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.

Great product and competent installations are only a piece of the puzzle when it comes
to your system. Make sure that your installer is using 100% authentic installation
accessories from Connecting Punch in your installation. Connecting Punch has
everything from RCA cables and speaker wire to Power line and battery connectors.
Insist on it! After all, your new system deserves nothing but the best.

To add the finishing touch to your new Rockford Fosgate image order your Rockford
wearables, 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 [phone]. For all other countries, call +001-602­967-3565 or FAX [phone].

PRACTICE SAFE SOUND™

CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER

100dB MAY CAUSE PERMANENT HEARING LOSS. HIGH

POWERED
PRESSURE
AND

If, after reading your manual, you still have questions regarding this product,
we recommend that you see your Rockford Fosgate dealer. If you need further
assistance, you can call us direct at 1-800-795-2385. Be sure to have your serial
number, model number and date of purchase available when you call.

The serial number can be found on the outside of the box. Please record it in
the space provided below as your permanent record. This will serve as
verification of your factory warranty and may become useful in recovering your
amplifier if it is ever stolen.

Serial Number: ________________________________
Model Number:________________________________

AUTOSOUND SYSTEMS MAY PRODUCE SOUND

LEVELS WELL OVER 130dB. USE COMMON SENSE

PRACTICE SAFE SOUND.

TABLE OF CONTENTS

Introduction ............................................................................................. 1

Punch Amplifier Accessory Pack .............................................................. 1

Technical Design Features .......................................................................2

360.6 Design Features.............................................................................. 5

Installation Considerations ....................................................................... 7

Mounting Location...................................................................................8

Battery and Charging................................................................................ 9

Wiring the System .................................................................................... 9

Using the XCard.....................................................................................12

Customizing the XCard ..........................................................................12

Resistor Chart.........................................................................................13

XCard Configurations ............................................................................. 14

Using the Phase Switch.......................................................................... 16

Using the Signal Switching Network ......................................................17

360.6 Installation ................................................................................... 25

System Diagrams.................................................................................... 31

Troubleshooting ..................................................................................... 35

Dynamic Power Measurements..............................................................38

Specifications.........................................................................................40

Warranty Information.............................................................................41

International Information........................................................................ 42

G

ETTING STARTED

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

Installation Section

below. 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.

of this manual or refer to the icons listed

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Sections marked

ADVANCED OPERATION

include in-depth

technical information

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Sections marked

INSTALLATION

include “slam dunk”

wiring connections

TROUBLE-

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Sections marked

TROUBLESHOOTING

include recommendations

for curing

installation problems

INTRODUCTION

The Punch 360.6, is a 360 watt, 6 channel amplifier with integrated
features for accommodating “single amplifier” system designs. Built
into the amplifier are four internal XCards and a Signal Switching
Network. These features simplify signal processing and enable
custom signal distribution for each set of channels. Also integrated is
a Phase Switch and Bass EQ circuit designed to improve system
tuning. The engineering effort applied to the Punch 360.6 amplifier
represents how an impressive 3-way system can be easily installed
while keeping the components used to a minimum.

ACCESSORY PACK

Installation & Operation Manual
Punch Verification Certificate
(4) Amplifier mounting screws (#8 x 3/4" Phillips)
(16) Speaker & power connector screws (3/32" Allen)
(4) End cap mounting screws (9/64" Allen)
(1) Allen Wrench 9/64"
(1) Allen Wrench 3/32"
(1) AGU Fuseholder
(1) AGU 50 Amp Fuse

– 1 –

TECHNICAL DESIGN FEATURES

◆ TRANS•ANA

(TRANSconductance Active Nodal Amplifier)

The

TRANS•ANA

circuit that allows the audio signal to pass through the amplifier at

voltage

rails via a pair of driver transistors. Signal linearity is assured by an

active node

This allows amplifier performance similar to trans•
highly stable and linear while utilizing the advantages of a non­floating power supply.

THE RESULT: An extended frequency bandwidth accurately supplied
to the output stages of the amplifier.

. The signal is directly level-shifted to the fixed high voltage

◆ TOP AZ (Tracking Operation Pre-Amplifier Zone)

The

TOPAZ

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.

(TRANSconductance Active Nodal Amplifier) is a

formed by the drive transistors at ultrasonic frequencies.

(Tracking Operation Pre-Amplifier Zone) circuitry solves

nova

low

which is

THE RESULT: Elimination of troublesome ground loop noise between
source and amplifier.

◆ Bass EQ

The Bass EQ helps correct for acoustical deficiencies in the listening
environment. A unique potentiometer that controls bass compen­sates for the lack of low frequencies present in most car environ­ments. Unlike a conventional tone control, the Bass EQ corrects the
specific problem of poor low bass response.

THE RESULT: Provides better low bass response.

– 2 –

◆ DSM (Discrete Surface Mount) Technology

The

DSM

(Discrete Surface Mount) manufacturing process combines
the advantages of both discrete components and integrated circuitry.
Rockford Fosgate is the only American amplifier manufacturer to have
invested millions into this process. DSM components differ from
conventional discrete components in different ways. They are more
compact, more rugged, and they efficiently dissipate generated heat.
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
“amplifier-on-a-chip” shortcuts. These advantages are shown below
in Figure 1.

Figure 1

PC

Board

Thru-Hole Surface Mount

THE RESULT: Fewer connections, improved reliability, shorter signal
paths, superior signal-to-noise ratio and awesome sonic performance.

Solder

Component

Solder

PC

Board

◆ XCard (Internal Crossover)

The Punch 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
pass, low-pass and full range operation. With slight modifications,
many crossover frequencies and slope configurations can be achieved.

THE RESULT: Increased system design flexibility with a precise
electronic crossover without the limitations of conventional potenti-

ometer designs.

XCard

can be configured for high-

– 3 –

◆ MOSFET Devices

Rockford Fosgate is one of the few manufacturers in the sound
community to utilize MOSFET devices in both the
the

output stages. MOSFET

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 operate
very similarly to vacuum tubes in which they are more linear than bi­polar transistors. However, MOSFETs can deliver the midrange clarity
without the limitations of transient response and high frequency
phase shifting normally associated with tube operation.

THE RESULT: Operational characteristics similar to vacuum tubes
without the performance limitations of tube design.

(Metal Oxide Semiconductor Field Effect

power supply

and

◆ NOMAD (NOn-Multiplying Advanced Decision)

The Punch amplifiers use an
safe output power under all operating conditions. The innovative

NOMAD

sophisticated version of this technique ever used, bringing previously
unavailable levels of accuracy, stability, temperature immunity and
reliability to this critical process. NOMAD makes advanced deci­sions based on device voltages to precisely control the 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.

(NOn-Multiplying Advanced Decision) system is the most

analog computer process

to maximize

◆ Signal Switching Network

The Signal Switching Network allows the RCA input signals to be
distributed to the amplifier channels in multiple configurations.
Among the many possible configurations, a setting called
uses a single RCA (L mono) and gain (L) control to feed a pair of
channels, thus simplifying the bridging process.

THE RESULT: Allows input signals to be distributed to amplifier
channels in many different configurations.

E-Z bridge

– 4 –

360.6 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 – The unique end caps conceal the wiring and input
cables, giving the amplifier a clean “stealth” look.

RLR

R

Ch. C

Bass EQ

Ch. C
Gain

L

L

Ch. C Ch. B Ch. A

98 6 8

+ L –

Ch. C

3

LED

12

Ch. B
Gain

Ch. A
Gain

+ R –

Ch. C

3

Ch. B

REM Dual GNDDual B+– R +– L +

Ch. B

3

4

Ch. A

+ R –+ L –

Ch. A

35

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 gold-plated spade terminal is used for the
auto power/remote turn on of the Punch amplifier.

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. Signal Input Switches – These switches allow the input signals to
be distributed to the outputs in many different configurations.

– 5 –

8. Input Sensitivity Controls – The input level controls are preset

to match the output of most source units. They can be adjusted
to match output levels from a variety of source units.

9. Bass EQ Control – The Bass EQ allows a narrow band adjustment

of up to +18dB centered at 45Hz. The bass boost can be
bypassed by turning the control to its minimum or counterclock­wise position. The Bass EQ is dedicated for “Channel C” only.

10. Internal Crossovers – These built-in crossover cards are

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.

11. Channel C Phase Switch – This switch enables you to easily

invert the phase of “Channel C” (0°/180°) without having to
disconnect the speaker wires.

12. LED Power Indicator – The LED illuminates when the unit is

turned on.

*Please refer to Owner's

Manual for signal input

switch configurations.

*Signal
Phase
Switch

–180° 0°

Input

Switches

11

10

–180° 0°

XCard C

XCard C

Ch. C
XCard

XCard B

XCard B

XCard B

Ch. B
Dual Filter
XCards

7

XCard B

Ch. A
XCards

XCard A

XCard A

– 6 –

INSTALLATION CONSIDERATIONS

The following is a list of tools you will need for installing the Punch
amplifier:

Allen wrenches 9/64" & 3/32" (included) Voltmeter
Wire strippers Battery post wrench
Electric hand drill w/assorted bits Wire cutters
Wire crimpers 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 beginning any installation, 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.
Grounding connections should be as short as possible and always
be connected to metal that is welded to the main body, or chassis,
of the vehicle.

– 7 –

MOUNTING LOCATION

The mounting location and position of your amplifier will have 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 condi­tions. 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.

Mounting the amplifier on the floor of the trunk will work but
provides 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

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.

not

recommended.

Mounting the amplifier with less than 1" (2.54cm) of air gap around
the amplifier's heatsink in the passenger compartment will not
provide proper cooling and will severely affect the performance of
the amplifier and is strongly

not

recommended.

Engine Compartment Mounting

Rockford Fosgate amplifiers should
compartment. Not only will this void your warranty but could create
an embarrassing situation caused by the ridicule from your friends.

– 8 –

never

be mounted in the engine

BATTERY AND CHARGING

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 and an energy storage
capacitor.

WIRING THE SYSTEM

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. Configure the internal XCard crossover and Signal Switching

Network prior to installation. Refer to pages 12 & 13 for further
information.

2. Plan the wire routing. Take care when running signal level RCA

cables to keep them close together but isolated 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.

3. Prepare the Power cable for at-

tachment to the amplifier by strip­ping 5/8" of insulation from the
end of the wire. To prevent the
wire from fraying, strip the insula-

STRIP WIRE

AMP

>

5/8"

>

INSULATION

>

><

tion 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.

– 9 –

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.

4. Strip 3/8" from the battery end of the power cable and crimp a 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.

5. Prepare a length of cable to be used for the GND 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 a star washer.

6. Prepare the REM turn-on wire for connection to the amplifier by

stripping 1/4" 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.

7. Securely mount the amplifier (with supplied screws) to the

vehicle or amp rack. Be careful not to mount the amplifier on
cardboard or plastic panels. Doing so may enable the screws to
pull out from the panel due to road vibration or sudden vehicle
stops.

– 10 –

8. Connect the source signal to the amplifier by plugging the RCA
cables into the input jacks at the amplifier.

9. Connect the speakers. Strip the speaker wires 5/8". 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.

10. Perform a final check of the completed system wiring to ensure
that all connections are accurate. Check all power and ground
connections for frayed wires and loose connections which could
cause problems.

11. 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 neighborhood. 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 successfully completed another upgrade to your
audio system for which they will probably spill thumbtacks on
your driveway.

– 11 –

USING THE 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. The
XCard installed in your amplifier is set for Full Range. 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.

Low-Pass Full RangeHigh-Pass

➝

LP

HP

➝

➝

HP

➝

LP

CUSTOMIZING THE XCARD

The crossover point can be altered by changing all 4 resistor values.
Use the following formula to select the appropriate resistor value to

be placed on the XCard.

3386

7234

The actual formula is:

R =

= R (in kΩ) for .047µf cap

f

o

= R (in kΩ) for .022µf cap

f

o

1

2πfoc

Crossover Card

High Pass

R1

Low Pass
Full Range

R2

FULL

R1

FULL

↕

a

O
p

d

e

v

r

a

a

n

t

c

i

e

o

d

n

R2

Where: R = Ω

fo = desired crossover frequency
c = capacitor in farads
ex: .047 x 10-6 for .047mf cap

– 12 –

RESISTOR CHART

Our tests have shown that using 0.047µf capacitors for frequencies below 100Hz, and

0.022µf capacitors for frequencies above 100Hz, result in more linear crossover
control. Refer to the Specifications page to determine the capacitor value of each
supplied XCard.

Butterworth Alignment Q = .707

1% resistors used with 0.047µF caps

Frequency R1 R2
20Hz 169k
25Hz 133kΩ 133kΩ
30Hz 110kΩ 110kΩ
35Hz 95.3kΩ 95.3kΩ
40Hz 84.5kΩ 84.5kΩ
45Hz 75kΩ 75kΩ
50Hz 68.1kΩ 68.1kΩ
55Hz 61.9kΩ 61.9kΩ
60Hz 56.2kΩ 56.2kΩ
65Hz 52.3kΩ 52.3kΩ
70Hz 48.7kΩ 48.7kΩ
75Hz 45.3kΩ 45.3kΩ
80Hz 42.2kΩ 42.2kΩ
85Hz 40.2kΩ 40.2kΩ
90Hz 37.4kΩ 37.4kΩ

200Hz 16.9kΩ 16.9kΩ
300Hz 11.3kΩ 11.3kΩ
400Hz 8.45kΩ 8.45kΩ
500Hz 6.65kΩ 6.65kΩ
600Hz 5.62kΩ 5.62kΩ
700Hz 4.75kΩ 4.75kΩ
800Hz 4.22kΩ 4.22kΩ
900Hz 3.74kΩ 3.74kΩ
1kHz 3.40kΩ 3.40kΩ

1.2kHz 2.80kΩ 2.80kΩ
2kHz 1.69kΩ 1.69kΩ
3kHz 1.10kΩ 1.10kΩ
4kHz 845Ω 845Ω
5kHz 665Ω 665Ω
6kHz 562Ω 562Ω
7kHz 487Ω 487Ω
8kHz 422Ω 422Ω

Ω 169kΩ

Butterworth Alignment Q = .707

1% resistors used with 0.022µF caps

Frequency R1 R2

20Hz 357kΩ 357kΩ
25Hz 287kΩ 287kΩ
30Hz 237kΩ 237kΩ
35Hz 205kΩ 205kΩ
40Hz 178kΩ 178kΩ
45Hz 162kΩ 162kΩ
50Hz 143kΩ 143kΩ
55Hz 130kΩ 130kΩ
60Hz 121kΩ 121kΩ
65Hz 110kΩ 110kΩ
70Hz 102kΩ 102kΩ
75Hz 95.3kΩ 95.3kΩ
80Hz 90.9kΩ 90.9kΩ
85Hz 84.5kΩ 84.5kΩ
90Hz 80.6kΩ 80.6kΩ

200Hz 35.7k
300Hz 23.7kΩ 23.7kΩ
400Hz 17.8kΩ 17.8kΩ
500Hz 14.3kΩ 14.3kΩ
600Hz 12.1kΩ 12.1kΩ
700Hz 10.2kΩ 10.2kΩ
800Hz 9.9kΩ 9.9kΩ
900Hz 8.6kΩ 8.6kΩ

1.0kHz 7.15kΩ 7.15kΩ

1.2kHz 6.04kΩ 6.04kΩ

2.0kHz 3.57kΩ 3.57kΩ

3.0kHz 2.37kΩ 2.37kΩ

4.0kHz 1.76kΩ 1.76kΩ

5.0kHz 1.43kΩ 1.43kΩ

6.0kHz 1.21kΩ 1.21kΩ

7.0kHz 1.02kΩ 1.02kΩ

8.0kHz 909Ω 909Ω

Ω 35.7kΩ

– 13 –

XCARD CONFIGURATIONS

Configure a 12dB/octave filter for Channel A

Ch. B

REM Dual GNDDual B+– R +– L +

80Hz-20kHz

12dB/octave HP

XCard C
XCard B
XCard B
XCard A

0° 180°

XCard A

Ch. B

• XCard A set to High-Pass or Low-Pass

Configure a 12dB/octave filter for Channel B

Ch. B

REM Dual GNDDual B+

Ch. B

+ L – + R –

Ch. A

80Hz-20kHz

12dB/octave HP

HP

+ L – + R –– L + – R +

Ch. A

Ch. A

Ch. A

20Hz-80Hz

12dB/octave LP

XCard B2

Full

Range

XCard B1

LP

20Hz-80Hz

12dB/octave LP

XCard C
XCard B
XCard B
XCard A

• XCard B1 set to High-Pass or Low-Pass

• XCard B2 set to Full Range

– 14 –

0° 180°

Configure a 24dB/octave filter for Channel B

Ch. B

20Hz-80Hz

24dB/octave LP

Ch. B

XCard B2

XCard B1

LP

REM Dual GNDDual B+

20Hz-80Hz

24dB/octave LP

LP

XCard C
XCard B
XCard B
XCard A

+ L – + R –– L + – R +

Ch. A

Ch. A

0° 180°

*

• XCard B1 & B2 set identically to High-Pass or Low-Pass

*Note: Both XCards must be customized to the same frequency for proper
24dB/octave operation. Refer to “Using the XCard” on page 12 for
altering the cutoff frequency.

Configure a 12dB/octave Bandpass filter for Channel B

Ch. B

Ch. B

80Hz-4kHz

12dB/octave BP

XCard B2

LP

XCard B1

HP

• XCard B1 inserted as High-Pass

• XCard B2 inserted as Low-Pass

REM Dual GNDDual B+

80Hz-4kHz

12dB/octave BP

XCard C
XCard B
XCard B
XCard A

– 15 –

+ L – + R –– L + – R +

Ch. A

Ch. A

0° 180°

Configure a 12dB/octave Low-Pass filter for Channel C

RLR

R

+ L –

Ch. C

LED

Ch. C

Bass EQ

XCard C

Ch. C

L

Gain

Ch. C Ch. B Ch. A

12dB/octave LP

LP

L

20Hz-80Hz

XCard C
XCard B
XCard B

+ R –

Ch. B

Ch. A

Gain

Gain

Ch. C

0° 180°

XCard A

• XCard C set to High-Pass or Low-Pass

USING THE PHASE SWITCH

Vehicle interiors can cause acoustical irregularities with the system's
bass response. The Punch amplifier has a 0°/–180° phase switch that
allows both Channel C outputs to be inverted simultaneously. Since
woofers will typically be connected to Channel C, the system's bass
response can be improved by experimenting with the phase switch.

+ L –

Ch. C

Ch. C

Bass EQ

Ch. C

L

Gain

Ch. C Ch. B Ch. A

XCard C
XCard B
XCard B
XCard A

L

0° Phase

Ch. B
Gain

0° –180°

RLR

R

LED

• Phase Switch set to 0°

LED

+ L –

Ch. C

+ R –

Ch. A
Gain

Ch. C

Ch. C

L

L

Bass EQ

Gain

Ch. C

Ch. C Ch. B Ch. A

180° Phase

XCard C
XCard B
XCard B
XCard A

+ R –

Ch. B

Ch. A

Ch. C

Gain

Gain

0° –180°

RLR

R

• Phase Switch set to –180°

– 16 –

USING THE SIGNAL SWITCHING NETWORK

The Signal Switching Network allows the RCA input signals to be
distributed to the outputs in many different configurations. The

orientation of

switches can be oriented in the following configurations:

Configuration #1

XCard C

XCard B
XCard B
XCard A

Configuration #2

XCard C

XCard B
XCard B
XCard A

both switches

–180°

0°

–180°

0°

configure the distribution pattern. The

Ch. A inputs => Ch. A outputs

Ch. B inputs => Ch. B outputs

Ch. A & B inputs

Factory Default

Setting

Ch. A inputs => Ch. A outputs

Ch. B inputs => Ch. B outputs

Ch. C inputs => Ch. C outputs

summed

=> Ch. C outputs

Configuration #3
(E-Z bridge Ch. C) Ch. A inputs => Ch. A outputs

Ch. B inputs => Ch. B outputs

Ch. C (L mono) input => Ch. C outputs

XCard C

XCard B
XCard B
XCard A

–180°

0°

Configuration #4

Ch. A inputs => Ch. A, B, & C outputs

XCard C

XCard B
XCard B
XCard A

–180°

0°

– 17 –

Configuration #5

Ch. A inputs => Ch. A & B outputs

Ch. C inputs => Ch. C outputs

XCard C

XCard B
XCard B
XCard A

–180°

0°

Configuration #6
(E-Z bridge Ch. C) Ch. A inputs => Ch. A & B outputs

Ch. C ( L mono) input => Ch. C outputs

XCard C

XCard B
XCard B
XCard A

–180°

0°

– 18 –