Rockford Fosgate PUNCH 400.4 trans ana, PUNCH 400.4 Operation & Installation

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car audio

fanatics

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4-Channel Amplifiers
Operation & Installation

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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.

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

967-3565 or FAX [phone].

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:____________________

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.

PRACTICE SAFE SOUND™

CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS
OVER 100dB MAY CAUSE PERMANENT HEARING LOSS. HIGH
POWERED AUTO SOUND SYSTEMS MAY PRODUCE SOUND
PRESSURE LEVELS WELL OVER 130dB. USE COMMON SENSE
AND PRACTICE SAFE SOUND.

TABLE OF CONTENTS

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

Accessory Pack .......................................................................................1

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

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

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

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

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

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

Using Passive Crossovers ......................................................................12

Table of Crossover Component Values..................................................13

Using the XCard....................................................................................14

Resistor Chart........................................................................................15

XCard Configurations ............................................................................16

Using the Signal Input Switch................................................................19

Installation ............................................................................................21

System Diagrams...................................................................................28

Rockford Fosgate Accessories................................................................32

Troubleshooting ....................................................................................34

Dynamic Power Measurements.............................................................37

400.4 Specifications ..............................................................................39

Warranty Information............................................................................40

International Information.......................................................................41

Sections marked

ADVANCED OPERATION

include in-depth

technical information

Sections marked

TROUBLESHOOTING

include recommendations

for curing

installation problems

Sections marked

INSTALLATION

include “slam dunk”

wiring connections

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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

of this manual or refer to the icons listed 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.

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INTRODUCTION

The Punch 400.4 is a 4-channel amplifier which can deliver 400 watts
RMS. The amplifier utilizes a 2/4-channel input switch to eliminate
the need for signal splitters. Four internal XCard crossovers allow the
amplifier to be configured for use with many popular system designs
without the added cost of external processors. The Punch 400.4 is a
powerful 4-channel amplifier with integrated features which is of­fered at a competitive price.

We strongly recommend you have your Authorized Rockford Fosgate
Dealer install your new Punch amplifier. If you do choose to install it
yourself, please be sure to read the entire manual before beginning.

ACCESSORY PACK

Installation & Operation Manual
Punch Verification Certificate
(4) Amplifier mounting screws (#8 x 3/4" Phillips)
(10)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

– 2 –

◆ TOP AZ (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.

◆ TRANS•ANA

(TRANSconductance Active Nodal Amplifier)

The

TRANS•ANA

(TRANSconductance Active Nodal Amplifier) is a
circuit that allows the audio signal to pass through the amplifier at low
voltage. The signal is directly level-shifted to the fixed high voltage
rails via a pair of driver transistors. Signal linearity is assured by an
active node formed by the drive transistors at ultrasonic frequencies.
This allows amplifier performance similar to trans•

nova

which is
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.

◆ Pass-Thru Output

The Pass-Thru output provides a convenient source for daisy-chain­ing an additional amplifier without the need for extra RCA cables or
“Y” adapters. The Pass-Thru signal is derived from summing the Front
and Rear Left inputs to create a Left output, and summing the Front
and Rear Right inputs to create a Right output. When the amplifier is
used with 4-channel inputs, the Pass-Thru provides constant output
regardless of the source unit fade position. Additionally, the Pass­Thru has an XCard that can be set for High-Pass, Low-Pass or Full Range.

THE RESULT: Constant non-faded output for adding woofer amplifiers.

◆ 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 three 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 in Figure 1.

Surface Mount

Thru-Hole

Solder

Solder

Component

Figure 1

THE RESULT: Fewer connections, improved reliability, shorter

signal paths, superior signal-to-noise ratio and awesome sonic
performance.

◆ 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 XCard can be
configured for high-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

potentiometer designs.

– 3 –

◆ NOMAD (NOn-Multiplying Advanced Decision)

The Punch 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-

Multiplying Advanced Decision) system is the most sophisticated ver-

sion 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.

◆ 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 operate
very similar 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 designs.

– 4 –

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.

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 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.

– 5 –

9

6

9

8 10

7

5 4 113 3

+R–

4/2

Input

B++L–

Rear

GND

Front

R L

Front

Phase

0° - 180°

R L
Rear

RR

Front

Pass-Thru

L

L

Rear

–R+–L+

LEDREM

7. Signal Input Switch – This switch allows selection of 2-channel
or 4-channel source unit feed.

8. RCA Pass-Thru Jacks – The Pass-Thru provides a convenient
source for daisy-chaining an additional amplifier without run­ning an extra set of RCA cables from the front of the vehicle to the
rear amplifier location. One of the internal XCards can be
designated to the Pass-Thru, creating a dedicated low-pass, high­pass, or full range output.

9. 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.

10. Phase Switch – This switch enables you to easily invert the rear

channel phase without having to disconnect the speaker wires.

11. LED Power Indicator – The LED illuminates when the unit is
turned on.

12. XCard (Internal Crossover) – 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 high­pass, low-pass, or full range operation.

– 6 –

Low-Pass

Full Range

High-Pass

HP

LP

HP

LP

FULL

Rear

XCards

XCard 1

XCard 2

XCard 3

XCard 4

Dual Filter

Pass-Thru

XCard

Front

XCards

XCard 1

XCard 2

XCard 3

XCard 4

INSTALLATION CONSIDERATIONS

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 the appropriate fuseholder and 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.

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

– 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

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 proper
cooling and will severely affect the performance of the amplifier and is

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.

– 8 –

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.

BATTERY AND CHARGING

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.

Configure the internal XCard crossovers prior to installation. (Refer to
page 14 for more information.)

1. 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.

2. Prepare the B+ 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.

– 9 –

3. 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 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.

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 screw.

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

– 10 –

8. 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.

9. 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.

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.

10.

– 11 –

USING PASSIVE CROSSOVERS

A passive crossover is a circuit that uses capacitors and/or coils and is
placed on speaker leads between the amplifier and speaker. The
crossover delegates a specific range of frequencies to the speaker for
optimum driver performance. A crossover network can perform one of
three functions: High-Pass (capacitors), Low-Pass (inductors or coils)
and Bandpass (combination of capacitor and coil).

The most commonly used passive crossover networks are 6dB/octave
systems. These are easy to construct and require one component per
filter. Placing this filter in series with the circuit will reduce power to
the speaker by 6dB/octave above or below the crossover point
depending on whether it is a high-pass or low-pass filter. More
complex systems such as 12dB/octave or 18dB/octave can cause
impedance problems if not professionally designed.

Passive crossovers are directly dependent upon the speaker's imped­ance and component value for accuracy. When passive crossover
components are used in multiple speaker systems, the crossover's
effect on the overall impedance should be taken into consideration
along with the speaker's impedance when determining amplifier
loads.

CAUTION: The Rockford Fosgate amplifiers are not recom-

mended for impedance loads below 2Ω stereo and 4Ω bridged
(mono) loads.

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TABLE OF CROSSOVER COMPONENT VALUES

6 dB/Octave Low-Pass

6 dB/Octave High-Pass

Freq.
Hertz

Speaker Impedance

80 4.1mH 1000µF 8.2mH 500µF 16mH 250µF
100 3.1mH 800µF 6.2mH 400µF 12mH 200µF
130 2.4mH 600µF 4.7mH 300µF 10mH 150µF

200 1.6mH 400µF 3.3mH 200µF 6.8mH 100µF
260 1.2mH 300µF 2.4mH 150µF 4.7mH 75µF
400 .8mH 200µF 1.6mH 100µF 3.3mH 50µF

600 .5mH 136µF 1.0mH 68µF 2.0mH 33µF
800 .41mH 100µF .82mH 50µF 1.6mH 26µF

1000 .31mH 78µF .62mH 39µF 1.2mH 20µF

1200 .25mH 66µF .51mH 33µF 1.0mH 16µF
1800 .16mH 44µF .33mH 22µF .68mH 10µF

4000 .08mH 20µF .16mH 10µF .33mH 5µF

6000 51µH14µF .10mH 6.8µF .20mH 3.3µF
9000 34µH 9.5µF68µH 4.7µF .15mH 2.2µF

12000 25µH 6.6µF51µH 3.3µF 100µH 1.6µF

2 OHMS

8 OHMS

4 OHMS

L

C L

C

L C

L

C

L = Low-Pass (Inductor)
C = High-Pass (Capacitor)

For more information, see your Authorized Rockford Fosgate Dealer.

6 dB/Octave High-Pass and Low-Pass Filters

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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. 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 (low­pass) 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.

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

be placed on the XCard.

3386

f

o

= R (in kΩ) for .047µf cap

= R (in kΩ) for .022µf cap

7234

f

o

Where: R = ohms

fo = desired crossover frequency
c = capacitor in farads

ex: .047 x 10-6 for .047µf cap

Crossover Card

High Pass
Low Pass
Full Range

R1

R2

R1

R2

FULL

The actual formula is:

R =

1

2πfoc

Low-Pass Full RangeHigh-Pass

FULL

↕

HP

➝

➝

LP

HP

➝

➝

LP

– 14 –

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RESISTOR CHART

– 15 –

Frequency R1 R2
20Hz 169k

Ω 169kΩ

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

Butterworth Alignment Q = .707

1% resistors used with 0.047µF caps

Butterworth Alignment Q = .707

1% resistors used with 0.022µF caps

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.

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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

Ω 35.7kΩ

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

XCARD CONFIGURATIONS

Configure a 12dB/octave filter for the Front channels.

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

Configure a 12dB/octave filter for the Rear channels.

• Rear XCard 1 set to High-Pass or Low-Pass

• Rear XCard 2 set to Full Range

–L+

REM B+ GND

LED

+L– +R–

Rear Front

Front XCard

XCard Rear 1

XCard Rear 2

XCard Pass-Thru

HP

8 0Hz-20kHz

12dB/octave HP

–R+

REM B+ GND

LED

Rear Front

XCard Rear 1

XCard Front

XCard Pass-Thru

LP

20Hz-80Hz

12dB/octave LP

Full

Range

XCard Rear 2

–L++L– +R– –R+

– 16 –

Configure a 24dB/octave filter for the Rear channels.

• Rear XCards 1 & 2 set identically to High-Pass or Low-Pass

Configure a 12dB/octave Bandpass filter for the Rear channels.

• Rear XCard 1 inserted as High-Pass

• Rear XCard 2 inserted as Low-Pass

* The 400.4 is shipped with 80Hz XCards. At least one of the XCards must be
customized to enable proper bandpass operation. Refer to “Using the XCard” on
page 14 for more information.

REM B+ GND

LED

Rear Front

XCard Rear 1

XCard Front

XCard Pass-Thru

LP

20Hz-80Hz

24dB/octave LP

LP

XCard Rear 2

–L++L– +R– –R+

–L+

REM B+ GND

LED

+L– +R–

Rear Front

XCard Rear 1

XCard Front

XCard Pass-Thru

HP

80Hz-275Hz

12dB/octave BP

LP

XCard Rear 2

–R+

– 17 –

Configure a 12dB/octave filter for the Pass-Thru

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

LP

XCard Pass-Thru

Front
Gain

Rear

Gain

0/180 4/2

20Hz-80Hz

12dB/octave LP

XCard Front
XCard Rear1
XCard Rear2

– 18 –

2-Channel Input

• RCAs connected to Front inputs

• Signal Input Switch set to 2-channel input

• Pass-Thru is a non-fading summed output

• This configuration eliminates the need for signal splitters

NOTE: Connect the Pass-Thru output to an

external

component only.

Connecting the Pass-Thru output back into the front/rear inputs on the

400.4 may cause unstable operation.

USING THE SIGNAL INPUT SWITCH

– 19 –

Front
Gain

Rear
Gain

0°/180°

4/2

Input

INPUT

L - Summed

Output

R - Summed

Output

1 2

REM B+ GND

LED

Rear Front

Pass-Thru

–L++L– +R– –R+

1

2

12

R

L

R

L

Front Rear

• RCAs connected to Front & Rear inputs

• Signal Input Switch set to 4-channel input

• Pass-Thru is a non-fading summed output

• This configuration allows for Front & Rear fading

NOTE: Connect the Pass-Thru output to an

external

component only.

Connecting the Pass-Thru output back into the front/rear inputs on the

400.4 may cause unstable operation.

4-Channel Input

Front

Gain

Rear

Gain

0°/180°

4/2

Input

INPUT

L - Summed

Output

R - Summed

Output

1 2

REM B+ GND

LED

Rear Front

Pass-Thru

–L++L– +R– –R+

3

R

L

R

L

Front Rear

4

12

4 3

– 20 –

INSTALLATION

– 21 –

I
N
S
T
A
L
L
A
T
I
O
N

® ®

Power Connections

*Keep grounds as short as possible.

Connect to remote

turn-on lead of

source unit

Connect to B+ of battery

with a 50 amp fuse

Connect to chassis
ground of vehicle*

Less than 18"

GNDB+

LED

+L– +R– –L+ –R+

– 22 –

2-Channel Stereo Operation

• RCAs are connected to front inputs

• Signal Input Switch set to 2-channel input

• Phase Switch set to 0°

• Gain for front and rear left channels set equally to balance the subwoofer

• Gain for front and rear right channels set equally to balance the subwoofer

• Impedance for each bridged channel should be no less than 4Ω

• XCards for front and rear are set identically as 12dB High-Pass, 12dB
Low-Pass or Full Range

I
N
S
T
A
L
L
A
T

I
O
N

® ®

Front
Gain

Rear

Gain

0/180 4/2

INPUT

REM B+ GND

LED

Rear Front

Pass-Thru

Front Rear

4 ohm min. 4 ohm min.

+–

+–

–L++L–

+R– –R +

left

right

– 23 –

2-Channel Mono Operation

• RCAs are connected to front inputs

• Signal Input Switch set to 2-channel input

• Phase Switch set to 0°

• Gain for front left and right channels set equally to balance the subwoofer

• Gain for rear left and right channels set equally to balance the subwoofer

• Impedance for front bridged channel should be no less than 4Ω

• Impedance for rear bridged channel should be no less than 4Ω

• Front XCard can be set to 12dB High-Pass, 12dB Low-Pass or Full Range

• Rear XCard can be set to 12dB High-Pass, 12dB Low-Pass or Full Range

Front

Gain

Rear
Gain

0/180 4/2

INPUT

REM B+ GND

LED

Rear Front

Pass-Thru

Front Rear

4 ohm min. 4 ohm min.

+–

+–

–L++L–

+R– –R +

I
N
S

T
A
L
L
A

T

I
O
N

® ®

3-Channel Operation

– 24 –

*Adjust the phase switch to 180° if XCard for front channel is set to HP
and XCard for rear channel is set to LP (or vice versa).

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0° or 180°*

• Gain for front channels operate independently

• Gain for rear bridged channels set equally to balance the subwoofer

• Impedance for front stereo channels should be no less than 2Ω

• Impedance for rear bridged channel should be no less than 4Ω

• Front XCard can be set for High-Pass, Low-Pass or Full Range

• Rear XCard can be set for High-Pass, Low-Pass, Bandpass or Full Range

Front
Gain

Rear

Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

4 ohm min.

2 ohm min.

+–

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R+

I
N
S
T
A
L
L
A
T
I
O
N

® ®

– 25 –

4-Channel Stereo Operation

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0° *

• Gain for all channels operate independently

• Impedance for each stereo channel should be no less than 2Ω

• Front XCard can be set for High-Pass, Low-Pass or Full Range

• Rear XCard can be set for High-Pass, Low-Pass , Bandpass or Full Range

* Adjust the phase switch to 180° if XCard for front channel is set to HP
and XCard for rear channel is set to LP (or vice versa).

2 ohm min.

+–

+–

2 ohm min.

Front

Gain

Rear

Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R +

I

N

S

T

A

L

L

A

T

I

O

N

® ®

– 26 –

4-Channel Stereo/Single Mono Operation

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0°

• Gain for front channels set equally to balance the subwoofer

• Gain for rear channels operate independently

• Impedance for front and rear stereo channels should be no less than 2Ω

• Impedance for front bridged channels should be no less than 4Ω

• Front XCard is set for Full Range

• Rear XCard is set to High-Pass, Low-Pass, Bandpass or Full Range

• Passive crossovers are needed for proper stereo/mono operation

2 ohm min.

+–

+–

2 ohm min.

Front

Gain

Rear

Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R+

4 ohm min.

+–

I

N

S
T
A
L
L
A
T
I
O

N

® ®

– 27 –

4-Channel Stereo/Dual Mono Operation

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0°

• Gain for front left and right set equally to balance the subwoofer

• Gain for rear left and right set equally to balance the subwoofer

• Impedance for front and rear stereo channels should be no less than 2Ω

• Impedance for front and rear bridged channels should be no less than 4Ω

• Front XCard is set to Full Range

• Rear XCard is set to Full Range

• Passive crossovers are needed for proper stereo/mono operation

2 ohm min.

+–

+–

2 ohm min.

Front
Gain

Rear

Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R +

4 ohm min.

+–

+–

4 ohm min.

I
N
S
T
A
L
L
A
T
I
O
N

® ®

SYSTEM DIAGRAMS

200 Watt 3-Way System

– 28 –

Front

Rear

12dB/octave LP

20Hz - 80Hz

RFA-414

12dB/octave HP

80Hz - 20kHz

RFA-414

+

–

+

–

+
–

+

–

+

–

+

–

RFR-1812

+ –

+ –

AUD

SEL

1 2 3 4 5 6

RDM

RPT

SCAN

PAUSE

D.SCN

DIM

AM

FM

Ch

RPTLD

RDM

DISC

ST

P.SCN LOUDDSPL

R

CLOCK

ILLUM

PWR

AUTO

® ®

VOL

TUNE

400 Watt 4-Way System

– 29 –

Front

Rear

12dB/octave LP

12dB/octave HP

80Hz - 275Hz

RFA-414

12dB/octave HP

275Hz - 20kHz

RFA-414

+
–

+

–

+

–

+

–

+

–

+

–

AUD

SEL

1 2 3 4 5 6

RDM

RPT

SCAN

PAUSE

D.SCN

DIM

AM

FM

Ch

RPTLD

RDM

DISC

ST

P.SCN LOUDDSPL

R

CLOCK

ILLUM

PWR

AUTO

® ®

VOL

TUNE

+

–

+

–

+

–

+

–

2

4

d

B

/

o

c

t

a

v

e LP

20Hz-80Hz

RFR-1812

RFR-1812

RFR-64

RFR-64

600 Watt 4-Way System

– 30 –

Front

Rear

12dB/octave LP

12dB/octave HP

80Hz - 275Hz

RFA-414

12dB/octave HP

275Hz - 20kHz

RFA-414

+

–

+

–

+

–

+

–

+

–

+

–

AUD

SEL

1 2 3 4 5 6

RDM

RPT

SCAN

PAUSE

D.SCN

DIM

AM

FM

Ch

RPTLD

RDM

DISC

ST

P.SCN LOUDDSPL

R

CLOCK

ILLUM

PWR

AUTO

® ®

VOL

TUNE

+

–

+

–

+

–

+

–

24

d

B/

o

c

ta

v

e

LP

20Hz-80Hz

RFA-812

12dB/octave LP

12dB/octave HP

80Hz - 275Hz

RFA-414

12dB/octave HP

275Hz - 20kHz

RFA-414

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

Rear

Pass-Thru

800 Watt 4-Way System

– 31 –

Front

Rear

12dB/octave LP

12dB/octave HP

80Hz - 275Hz

RFA-414

12dB/octave HP

275Hz - 20kHz

RFA-414

+

–

+

–

+

–

+

–

+

–

+

–

AUD

SEL

1 2 3 4 5 6

RDM

RPT

SCAN

PAUSE

D.SCN

DIM

AM

FM

Ch

RPTLD

RDM

DISC

ST

P.SCN LOUDDSPL

R

CLOCK

ILLUM

PWR

AUTO

® ®

VOL

TUNE

+

–

+

–

+

–

+

–

2

4

d

B

/

o

c

t

a

v

e

L

P

20Hz-80Hz

RFR-1812

12dB/octave LP

12dB/octave HP

80Hz - 275Hz

RFA-414

12dB/octave HP

275Hz - 20kHz

RFA-414

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

Rear

Pass-Thru

+

–

+

–

20Hz-80Hz

RFR-1812

Pass-Thru

2

4

d

B

/

o

c

t

a

v

e

L

P

RFR-1812

RFR-64

RFR-64

RFR-1812

ROCKFORD FOSGATE ACCESSORIES

Energy Storage Capacitors

Energy storage capacitors are used to provide extra current needed by
amplifiers to reproduce musical transients. The capacitors also have
the natural ability to filter AC ripple caused by the alternator, reducing
the chance of noise in the system. The Punch Caps are available in a
variety of values and will maximize both the sound quality and
performance that Rockford Fosgate amplifiers can deliver.

®

• Recommended capacitance is 1 farad per 1000 watts

ATTENTION: We recommend your Authorized Rockford Fosgate
Dealer install your new accessory.

GNDB+

LED

REM

1.0

®

the connecting

® ®

1 farad • 20 VDC • 95°C

1.0

cap

punch

Battery +

– 32 –

XCard Crossovers

Additional crossover card frequencies are available for specialized
requirements. You can get the following XCards from your Authorized
Rockford Fosgate Dealer.

®

XM50 = 50Hz XM200 = 200Hz
XM70 = 70Hz XM275 = 275Hz
XM80 = 80Hz XM400 = 400Hz
XM100 = 100Hz XM4.5k = 4,500Hz
XM150 = 150Hz XM6.5k = 6,500Hz

XM00 = Blank card for

custom crossover

ATTENTION: We recommend your Authorized Rockford Fosgate
Dealer install your new accessory.

Crossover Card

High Pass
Low Pass
Full Range

R1

R2

R1

R2

FULL

– 33 –

TROUBLESHOOTING

Amplifier does not
turn on

(Power LED is off)

Symptom Diagnosis Remedy

Voltage applied to the
REM terminal of the
amplifier is not between

10.5 and 15.5 volts or
there is no voltage
present.

Voltage to the B+ termi­nal of the amplifier is
not between 10.5 and

15.5 volts or there is no
voltage present.

Amplifier is not prop­erly grounded.

Amplifier has no
sound

(Power LED is on)

RCA Input from source
unit is not connected or
not functioning prop­erly.

XCard is missing or not
placed properly in cross­over slots.

Speaker leads are
shorted to each other or
to the chassis of the ve­hicle.

Speakers are defective.

Check connections, substi­tute with known working
source and cables and repair
or replace as necessary.

Check XCard position and
repair or replace as neces­sary.

Disconnect existing speak­ers and test with known
working speakers and wires.
If amplifier plays, check and
repair wiring and installa­tion of speakers as neces­sary.

Disconnect existing speak­ers and test with known
working speakers. If ampli­fier plays, check and repair
speakers as necessary.

Check the alternator, bat­tery, fuse, and wiring and
repair as necessary. If the
voltage is above 15.5 volts,
have the electrical system
inspected by an authorized
car service center.

Check the alternator, bat­tery, fuse, and wiring and
repair as necessary. If the
voltage is above 15.5 volts,
have the electrical system
inspected by an authorized
car service center.

Check wiring and repair as
necessary.

– 34 –

TROUBLE-

S
H
O
O

T

I
N
G

Speaker Output
Low or Distorted

Readjust input gains of
amplifier.

Check system with known
working source and repair
or replace original source
as needed.

Check XCard position and
repair or replace as neces­sary.

Check the alternator, bat­tery, fuse, and power and
ground wiring. Repair as
necessary.

Symptom Diagnosis Remedy

Input gain signal for
amplifier is incorrectly
set.

Source unit output too
low or source unit has
no output.

XCard is missing or not
placed properly in cross­over slots.

Low battery voltage or
large voltage drops to
the amplifier under load.

No Output on
Rear Channels
Only

(using 2 inputs)

Signal input switch not
configured properly.

XCard is missing or not
placed properly in
crossover slot.

Check signal input switch
and reconfigure for 2-chan­nel input.

Check XCard position and
repair or replace as neces­sary.

Rear Channels
are Non-Fading

(using 4 inputs)

Signal input switch not
configured properly.

Check signal input switch
and reconfigure for 4-chan­nel input.

Amplifier Noise

(Turn-on Pop)

Voltage spike from out­put of preceding com­ponent is entering am­plifier through input sig­nal.

Voltage spike from re­mote turn-on lead is
entering through REM
input terminal.

Disconnect input signal to
amplifier and turn ampli­fier on and off. If noise is
eliminated, connect REM
lead of amplifier to source
unit with a delay turn-on
module.

Use a different 12 volt
source for REM lead of am­plifier. (i.e., battery direct)
If noise is eliminated, use a
relay to isolate amplifier
from noisy turn-on output.

– 35 –

TROUBLE-

S
H
O
O
T

I
N
G

Noise is radiating into
RCA signal cable.

Bad component in the sig­nal chain.

Noise is radiating into
speaker cables.

Multiple grounds in the
audio system.

Ground loop between
source unit and antenna.

Engine Noise

Symptom Diagnosis Remedy

Check connections, run the
RCA cables on a different
route away from sources of
high voltage.

Check connections, bypass
additional components
(crossovers and equalizers)
between the source unit
and the amplifier. Connect
one component at a time
to determine the culprit.
Repair or replace compo­nents as necessary.

Disconnect existing speak­ers and connect a test
speaker to the output ter­minals of the amplifier. If
noise is gone, reroute the
speaker cables away from
sources of high voltage.

Check ground connections
and connect amplifiers, sig­nal processors, and other
components to a central
location or try a different
grounding point on the
chassis.

Check connections, dis­connect antenna from
source unit. If noise is gone,
install an antenna ground
loop isolator.

• If noise persists, see your Authorized Rockford Fosgate Dealer.

– 36 –

TROUBLE-

S
H
O
O
T

I
N
G

DYNAMIC POWER MEASUREMENTS

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 standards. 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 manufacturers, 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 milliseconds. The signal is
gradually increased in level until the amplifier's output exceeds 1% Total
Harmonic Distortion (THD). At 1% distortion 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.

A 4 ohm speaker may experience a drop in impedance 4-6 times lower 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 (compliance 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 of these impedances is also tested at –60°, –30°, 0°, +30° and
+60° phase angles. These different impedances and phase angles repre­sent the shifts in impedance and phase that can occur in a typical
loudspeaker.

– 37 –

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.

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!

–60° (Cap)

0°

(Ind) +60°

1Ω

2Ω

4Ω

Impedance

8Ω

10V

30V

50V

8Ω –60°

–30°

0°
30°
60°

4Ω –60°

–30°

0°
30°
60°

2Ω –60°

–30°

0°
30°
60°

1Ω –60°

–30°

0°
30°
60°

85 W
84 W
84 W
84 W

86 W
162 W
157 W
156 W
157 W
162 W
273 W
258 W
251 W
256 W
271 W
390 W
356 W
346 W
352 W
390 W

Audio Graph – The PowerCube™

Amplifier:
Serial No:
Owner :

PUNCH 200.

2

14.4V x 2

ROCKFORD CORPORATION

Rated Power : 100 W @ 4 Ohms

IMPEDANCE

MODEL BEING

TESTED

x2 = STEREO

MONO = BRIDGED MONO

VOLTAGE FROM

BATTERY

OUTPUT VOLTAGE

*

*

*

*

PHASE ANGLES

{

POWER

IN

WATTS

{

{

• Example of a 200.2 PowerCube

– 38 –

400.4 SPECIFICATIONS

– 39 –

Continuous Power Rating (Competition Standard) – Measured at 13.8V
RMS continuous power per channel, all channels 50 Watts
driven into a 4Ω load from 20-20,000Hz with
less than 0.05% Total Harmonic Distortion (THD)

RMS continuous power per channel, all channels 100 Watts
driven into a 2Ω load from 20-20000Hz, with
less than 0.1% Total Harmonic Distortion (THD)

RMS continuous power bridged x 2 into a 4Ω load 200 Watts
from 20-20000Hz, with less than 0.1%
Total Harmonic Distortion (THD)

Dynamic Power Rating (IHF-202 Standard) – Measured at 14.4V
2-Channel bridged into a 4Ω load 260 Watts
per channel into a 2Ω load 130 Watts
per channel into a 4Ω load 60 Watts

Signal-to-Noise Ratio (A-weighted) >95dB
Factory Default Crossover Point 80Hz Butterworth (.047µf)

Crossover Alignment 12dB/octave
Dimensions 95⁄8"W x 149⁄32"L x 25⁄8"H

(24.4cm) x (36.27cm) x (6.6cm)

Damping Factor @ 4Ω (at output connector) >150
Bandwidth 15Hz-100kHz ±3dB
Frequency Response 20Hz-20kHz ±0.5dB
Slew Rate 30 V/µs
IM Distortion (IHF) <0.05%
Input Sensitivity Variable from 150mV to 3V

Preset at the factory for 500mV
B+ Fuse Size (external to amplifier) AGU 50 amp
Input Impedance 20k ohms

– 40 –

LIMITED WARRANTY INFORMATION

Ship to: Speakers
Rockford Acoustic Design
(Receiving-speakers)
609 Myrtle N.W.
Grand Rapids, MI 49504
RA#:_________________

Ship to: Electronics
Rockford Corporation
Warranty Repair Department
2055 E. 5th Street
Tempe, AZ 85281
RA#:_________________

Rockford Corporation offers a limited warranty on Rockford Fosgate products on the
following terms:

• Length of Warranty
3 years on electronics 90 days on electronic B-stock (receipt required)
2 years on source units 30 days on speaker B-stock (receipt required)

• What is Covered
This warranty applies only to Rockford Fosgate products sold to consumers by
Authorized Rockford Fosgate Dealers in the United States of America or its
possessions. Product purchased by consumers from an Authorized Rockford
Fosgate Dealer in another country are covered only by that country’s Distributor
and not by Rockford Corporation.

• Who is Covered
This warranty covers only the original purchaser of Rockford product purchased
from an Authorized Rockford Fosgate Dealer in the United States. In order to
receive service, the purchaser must provide Rockford with a copy of the receipt
stating the customer name, dealer name, product purchased and date of purchase.

• Products found to be defective during the warranty period will be repaired or
replaced (with a product deemed to be equivalent) at Rockford's discretion.

• What is Not Covered

1. Damage caused by accident, abuse, improper operations, water, theft

2. Any cost or expense related to the removal or reinstallation of product

3. Service performed by anyone other than Rockford or an Authorized Rockford
Fosgate Service Center

4. Any product which has had the serial number defaced, altered, or removed

5. Subsequent damage to other components

6. Any product purchased outside the U.S.

7. Any product not purchased from an Authorized Rockford Fosgate Dealer

• Limit on Implied Warranties
Any implied warranties including warranties of fitness for use and merchantability
are limited in duration to the period of the express warranty set forth above. Some
states do not allow limitations on the length of an implied warranty, so this
limitation may not apply. No person is authorized to assume for Rockford Fosgate
any other liability in connection with the sale of the product.

• How to Obtain Service
Please call 1-800-669-9899 for Rockford Customer Service. You must obtain an
RA# (Return Authorization number) to return any product to Rockford Fosgate. You
are responsible for shipment of product to Rockford.

I

NTERNATIONAL

INFORMATION

– 41 –

LEA DETENIDAMENTE LAS SIGUIENTES INSTRUCCIONES DE
INSTALACION DEL PRODUCTO. EVITARA POSIBLES DAÑOS A VD., AL
VEHICULO O AL PRODUCTO.

Montaje en el Malatero

Monte el amplificador verticalmente con las lineas del radiador orientadas
de arriba hacia abajo. De esta manera conseguira la mejor ventilacion.

Montaje en el Compartimento de Pasajeros

El montaje en el compartimento de pasajeros sera eficiente en funcion
de la ventilacion que tenga el amplificador. Si va a instalar el amplificador
bajo un asiento deberá dejar al menos 2.5cm libres sobre la carcasa del
amplificador.

Instalacion

Por seguridad, desconecte el terminal negativo de la bateria antes de
comenzar la instalacion.

Terminal B+

El cable B+ debe ir provisto de un fusible a una distancia no mayor de
45cm de la bateria. Prepare el cable e instale el portafusibles en el
compartimento del motor. Las conexiones han de ser impermeables.

Terminal GND

Prepare un trozo de cable para usarlo como toma de masa. Prepare un
punto de masa en el chasis rascando y eliminando la pintura de la
superficie de metal y limpielo de toda suciedad asegure el cable al chasis
con un tornillo.

Terminal REM

Conecte el cable REM a un punto de +12V con mutable. La señal se suele
coger de la salida auto antena del radio cassette si este no tiene salida
remote.

UBICACIÓN PARA EL MONTAJE

El Punch 400.4 es un amplificador de 4 canales que puede entregar 400
vatios RMS. Este amplificador utiliza un interruptor de 2 a 4 canales en
la entrada para eliminar la necesidad de divisores de señal. Cuatro
crossover internos del tipo XCard permiten a los amplificadores ser
configurados para el uso con diseños muy estándares y populares, sin
coste añadido de procesadores externos. El Punch 400.4 es un poderoso
amplificador de 4 canales con características espectaculares ofrecido a
un precio competitivo.

Recomendamos que el montaje sea realizado por un instalador autorizado
Rockford Fosgate. Si prefiere instalarlo usted mismo asegúrese de leer el
manual en su totalidad.

INTRODUCCION

– 42 –

Funcionamiento en 2 canales Estereo

ESPAÑOL

• Los RCAs se conectan a la entrada Front

• El Conmutador de Entrada de Señal se fija a 2-Channel input

• Commutador de fase puesto a 0°

• Ganancia para los canales derechos (frontal y posterior) ajustado para
igualar el balance sobre el subwoofer

• Ganancia para los canales izquierdos (frontal y posterior) ajustado para
igualar el balance sobre el subwoofer

• La Impedáncia de cada canal puenteado no debería ser menor de 4
Ohmios

• Las tarjetas XCards para los canales frontal y posterior son puestos en
idéntica configuración con 12dB en el Paso-Altos, 12dB en el Paso-Bajos o
en Full Range (Banda Completa)

Front

Gain

Rear

Gain

0/180 4/2

INPUT

REM B+ GND

LED

Rear Front

Pass-Thru

Front Rear

4 ohm min. 4 ohm min.

+–

+–

–L++L–

+R– –R +

left

right

– 43 –

4-Channel Stereo/Single
Mono Operation

• Los RCAs son conectados a la entrada de frontal o a las de frontal y posterior

• El conmutador de Entrada de Señal se fija a entrada de 2 canales o entrada
de 4 canales

• Commutador de fase puesto a 0°

• La Ganancia de los canales frontales ajustada para igualar el balance sobre
el subwoofer

• La Ganancia para los canales posteriores se puede operar
independientemente

• La Impedáncia para los canales frontal y posterior no deberia ser menor
a 2 Ohmios

• La Impedáncia de cada canal posteriores se puede operar independientemente

• La XCard para front ha de estar en Full Range

• La XCard para rear se puede posicionar en HP, LP o Full Range

• Se necesitarán filtros pasivos adicionales para la operación simultánea

mono/estereo

2 ohm min.

+–

+–

2 ohm min.

Front
Gain

Rear
Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R+

4 ohm min.

+–

– 44 –

Entrada

4-Ch

ATTENTION: Veuillez lire les instructions suivantes pour l'installation de cet
amplifcateur. Ne pas les suivre pourrait causer des blessures ou endommager
le véhicule.

INTRODUCTION

Montage dans le coffre

Monter l'amplificateur verticalement avec les rainures de haut en bas ce
qui lui permet de refroidir plus facilement.

Montage dans l'habitacle

Monter l'amplificateur dans l'habitacle ne pose aucun problème, du
moment qu'il y ait assez d'air pour le refroidir. Si vous montez l'ampli
en dessous du siège, prévoyez 3 cm d'air autour du radiateur.

Installation

Pour votre sécurité, déconnectez la borne négative de la batterie du
véhicule avant de commencer l'installation.

Terminal B+

Il est impératif qu'il y ait un fusible sur le câble pour la connexion à la
masse. Préparez le châssis en grattant la peinture de la surface métallique
et nettoyez la saleté et l'huile. Attachez le câble au châssis avec une vis.

Terminal GND

Préparez une longueur de câble pour la connexion à la masse. Préparez
le châssis en grattant la peinture de la surface métallique et nettoyez la
saleté et l'huile. Attachez le câble au châssis avec une vis.

Terminal REM

Connectez le fil REM à une commande 12 volts positive de la source. La
commande 12 volts est habituellement prise sur la sortie antenne
électrique de la source ou la commande accessoire. Si la source ne
dispose pas de ces sorties, nous vous recommandons d'installer un
interrupteur qui fournira un positif 12 volts au REM de l'amplificateur.

MONTAGE

FRANÇAIS

Le Punch 400.4 est un amplificateur à 4 canaux délivrant 400 watts RMS.
Cet amplificateur utilise un interrupteur 2/4 canaux qui élimine le besoin
d'un séparateur de signal. Quatre cartes de filtrage internes permet de
configurer l'amplificateur afin d'être utilisé dans la plupart des configu­rations sans dépense supplémentaire.

Nous vous recommandons fortement de faire installer votre nouvel
amplificateur Punch par un dealer agréé Rockford Fosgate. Si vous
décidez néanmoins de l'installer vous-même, assurez-vous de lire
l'entièreté de ce manuel avant de commencer.

– 45 –

• Les cables RCAs sont connectés aux entrées avant

• Le commutateur d'entrée est mis sur 2 canaux d'entrée

• L'interrupteur de phase est mis sur 0°

• Les gains des canaux gauche avant et arrière sont réglés de la même
manière pour équilibrer le subwoofer

• Les gains des canaux droit avant et arrière sont réglés de la mIeme manière
pour équilibrer le subwoofer

• L'impédance pour chaque canal bridgé est de minimum 4Ω

• Les cartes de filtrage avant et arrière sont réglée de manière identique en
passe-haut 12dB, pass-bas 12dB ou full range

Front
Gain

Rear

Gain

0/180 4/2

INPUT

REM B+ GND

LED

Rear Front

Pass-Thru

Front Rear

4 ohm min. 4 ohm min.

+–

+–

–L++L–

+R– –R +

left

right

Foncionnement stéréo 2-canaux

– 46 –

Entree

Fonctionnement 4 canaux stereo/mono

• Les cables RCA sont connectés aux entrées avant et arrière

• Le commutateur d'entrée est mis sur 2 ou 4 canaux d'entrée

• L'interrupteur de phase est mis sur 0°

• Les gains des canaux avant sont réglés de la même manière pour
équilibrer le subwoofer

• Les gains des canaux arrière sont réglés indépendement

• L'impédance pour les canaux stereo avant et arrière est de minimum 4Ω

• La carte de filtrage avant est mise en full range

• La carte de filtrage arrière est réglée en passe-haut, passe-bas ou full
range

• Des filtres passifs sont nécessaires pour un bon fonctionnement stereo/
mono

2 ohm min.

+–

+–

2 ohm min.

Front

Gain

Rear

Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R+

4 ohm min.

+–

– 47 –

Entree

BITTE LESEN SIE DIESE GEBRAUCHSANLEITUNG ZUERST SORGFÄLTIG
DURCH. DAS KANN SIE VOR DEM FALSCHEN EINSATZ, AUSFALLEN
ODER SOGAR BESCHÄDIGUNG DES PRODUKTES ODER IHRES
FAHRZEUGES SCHÜTZEN.

EINBAUORT

EINLEITUNG

Im Fahrzeugkofferraum

Der vertikale Einbau der Endstufen, das bedeutet, daβ die Kühlrippen
von oben nach unten verlaufen, gibt dem Verstärker die beste Kühlung.

Auf der Beifahrerseite

Sollte der Verstärker auf der Beifahrerseite montiert werden, so ist es sehr
wichtig, für eine ausreichende Kühlung zu sorgen. Sollte der Verstärker
z.B. unter dem Beifahrersitz montiert werden, sollte dem Kühlkörper
mindestens ein Luftspalt von 3 cm bleiben, um so für eine ausreichende
Kühlung zu sorgen.

Einbau

Zur Sicherheit klemmen Sie den Negativ-Pol der Batterie während des
gesamten Einbaues ab.

B+ Anschluss

Die Plus-Leitung MUβ ca. 40 cm nach dem Plus-Pol der Batterie abgesichert
sein. Preparieren Si die Kabellängen und montieren Sie den Sicherungshalter im
Motorraum. ALLE Verbindungen müssen wasserdicht sein.

GND Anschluss

Preparieren Sie Ihr Kabel für die Negativ Leitung (Erdung). Preparieren
Sie die Anschluβstelle des Erdungskabels, indem Sie das Metall gründlich
reinigen und vom Lack befreien. Befestigen Sie nun die Erdung an dieser
Stelle mit einer Schraube.

Die Punch 400.4 ist ein 4-Kanal Verstärker, welcher 400 Watt RMS
liefern kann. Dieser Verstärker hat einen 2/4-Kanal Schalter, um die
Benutzung eines Y-Adapters zu vermeiden. Vier interne Aktivweichen­Module erlauben es, den Verstärker optimal an alle Systeme anzupassen,
ohne daβ Sie externe Prozessoren benötigen. Der Punch 400.4 ist ein
kraftvoller Verstärker, mit integrierten Besonderheiten, zu einem
konkurenzlos günstigen Preis.

Wir empfeheln Ihnen, Ihren neuen Verstärker, von einem unserer
autorisierten Rockford Händler einbauen zu lassen. Sollten Sie den
Verstärker selber einbauen, so beachten Sie bitte diese Hinweise, bevor
Sie mit dem Einbau beginnen.

– 48 –

DEUTSCH

REM Anschluss

Verbinden Sie das Ein-und Ausschaltungskontroll-Kabel mit Ihrem
Radio (12 Volt positiv). Normalerweise verwenden Sie hierfür die
Ant.-Remote Ihres Radios oder ein eigens dafür vorgesehenes Kabel
(Amp-Remote). Sollte Ihr Radio diesen Anschluβ nicht besitzen, so
verwenden Sie eine 12 Volt Spannung, die Sie durch einen Schalter
ein- und ausschalten können.

• Die Cynch-Kabel sind mit den Fronteingängen verbunden

• Der Eingangswahlschalter ist auf 2-channel eingestellt

• Phasen-Schalter auf 0° einstellen

• Die Gain-Kontrolle für Front und Heck des linken Kanals sollte gleich
eingestellt werden, um den Subwoofer auszubalancieren

• Die Gain-Kontrolle für Front and Heck des rechten Kanals sollte gleich
eingestellt werden, um den Subwoofer auszubalancieren

• Die Impedanz für die gebrückten Kanäle sollte mindestens 4Ω betragen

• DieAktivweichen-Module für Front und Heck gleich einsetzen, als
Hochpass, Tiefpass oder Full Range

Front
Gain

Rear

Gain

0/180 4/2

INPUT

REM B+ GND

LED

Rear Front

Pass-Thru

Front Rear

4 ohm min. 4 ohm min.

+–

+–

–L++L–

+R– –R +

left

right

2-Kanal Stereo

– 49 –

• Die Cynch-Kabel sind mit den Fronteingängen oder den Front- und
Heckeingängen verbunden

• Der Eingangswahlschalter ist auf 2-channel oder 4-channel eingestellt

• Phasen-Schalter auf 0° einstellen

• Die Gain-Kontrolle für die Frontkanäle sollte gleich eingestellt werden,
um den Subwoofer auszubalancieren

• Die Gain-Kontrolle für die hinteren Kanäle arbeiten unabhängig
voneinander

• Die Impedanz für die Front-und Heck Stereokanäle sollte mindestens 2Ω
betragen

• Die Impedanz für die vorderen gebrückten Kanäle sollte mindestens 4Ω
betragen

• Das Aktivweichen-Modul für die vorderen Kanäle sollte auf Full-Range
gesteckt werden

• Das Aktivweichen-Modul für die hinteren Kanäle sollte auf Hochpass,
Tiefpass, Bandpass oder Full-Range gesteckt werden

• Passive Frequenzweichen werden für korrekte Stereo/Mono Operationen
benötigt

2 ohm min.

+–

+–

2 ohm min.

Front
Gain

Rear
Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R+

4 ohm min.

+–

– 50 –

4-Kanal Stereo/Einzel
gebrückte Operation

ITALIANO

ATTENZIONE: SI PREGA DI LEGGERE LE SEGUENTI ISTRUZIONI PER
L'INSTALLAZIONE DI QUESTO PRODOTTO. IL NON SEGUIRLE POTREBBE
RISULTARE SERIAMENTE DANNOSO PER LA PERSONA O PER IL VEICOLO.

INTRODUZIONE

Nel Bagagliaio

Montando l'amplificatore su una superficie in verticale con le alette
direzionate dall'alto verso il basso si garantirá un miglior raffreddamento
dell'amplificatore.

Nell'abitacolo

Montare l'amplificatore nell'abitacolo si avrá un funzionamento regolare
se si garantisce un flusso d'aria sufficiente. Per l'installazione sotto un
sedile, é necessario avere uno spazio di almeno 3 cm attorno a tutto
l'amplificatore.

Installazione

Per sicurezza, scollegare il polo negativo della batteria dell'auto prima
di iniziare l'installazione.

Terminale B+ (cavo positivo)

Il cavo positivo deve essere protetto da un fusibile a non piú di 45 cm
dalla batteria. Terminare il cavo e installare il fusibile nel vano motore.
Tutte le connessioni devono essere a prova d'acqua.

Terminale GND (cavo negativo)

Decidere la lunghezza del cavo e terminarlo. Preparare la massa
grattando la vernice dal telaio dell'auto ed eliminando tracce di olio o
sporco. Fissare il cavo di massa al telaio con una vite.

DOVE POSIZIONARLO

Il Punch 400.4 é un amplificatore a 4 canali che puó erogare 400 watt
RMS. Questo amplificatore utilizza un deviatore 2/4 canali per evitare
di dover impiegare uno sdoppiatore di segnale sulla linea pre. 4 schede
di crossover XCard permette di impiegare l'amplificatore nelle
configurazioni piú tipiche del car stereo senza aggiungere processori di
segnale esterni. Il 400.4 é un potente amplificatore a 4 canali con
funzionalitá integrate che viene offetro ad un prezzo molto competitivo.

Raccomandiamo fermamente di fare installare il vostro nuovo
amplificatore da un installatore autoizzato Rockford Fosgate. Se scegliete
di procedere da soli con l'installazione assicuratevi di leggere
attentamente tutto il manuale prima di procedere.

– 51 –

Terminale REM (Consenso di accensione)

Collegare il cavo REM ad un positivo presente solo ad autoradio
accesa (normalmente il cavo pilota dell'antenna elettrica o il cavo
accessori dell'autoradio). Se la sorgente non dovesse essere
equipaggiata con queste uscite, la soluzione raccomandabile é di
inserire un interruttore su un cavo positivo e connettersi
all'amplificatore.

• Gli RCA sono connessi agli ingressi anteriori (Front)

• Il selettore dei canali ingresso é posizionato su 2 canali

• Il sellettore della fase é posizionato su 0°.

• I Gain per anteriore e posteriore sono posizionati in modo identico
per bilanciare equamente il subwoofer

• L'impedenza per ogni canale a ponte non dovrebbe essere inferiore a
4 ohm

• Le XCard anteriore e posteriori sono posizionate entrambe a 12dB
passa alto, passa basso o gamma intera

Front

Gain

Rear
Gain

0/180 4/2

INPUT

REM B+ GND

LED

Rear Front

Pass-Thru

Front Rear

4 ohm min. 4 ohm min.

+–

+–

–L++L–

+R– –R +

left

right

2 Canali Stereo

– 52 –

4-Channel Stereo/Single Mono Operation

• Gli RCA sono connessi agli ingressi anteriori o anteriori e posteriori

• Il selettore dei canali ingresso é posizionato su 2 o 4 canali

• Il sellettore della fase é posizionato su 0°.

• I Gain per l'anteriore sono posizionati identici per bilanciare il subwoofer

• I Gain per il posteriore operano in modo indipendente

• L'impedenza per i canale anteriori e posteriori é minimo 2 ohm

• L'impedenza per i canale a ponte deve essere minimo 4 ohm

• La XCard anteriore deve essere gamma intera

• Le XCard posteriore puó essere passa alto, passa basso o gamma intera

• Per il funzionamento stereo/mono sono indispensabili i crossover passivi

2 ohm min.

+–

+–

2 ohm min.

Front
Gain

Rear
Gain

0/180 4/2

–L+

REM B+ GND

LED

+L–

Rear Front

Pass-Thru

Front Rear

2 ohm min.

+–

4-Ch.

{

2-Ch.

{

INPUT

+–

2 ohm min.

+R– –R+

4 ohm min.

+–

– 53 –

NOTES

NOTES

Rockford Fosgate

Rockford Corporation

546 South Rockford Drive

Tempe, Arizona 85281 U.S.A.

In U.S.A., [phone]

In Europe, Fax [phone]

In Japan, Fax [phone]

9/96
MAN-1527-A