Rockford Fosgate 125.2, 225.2, 55.2, 75.2 User Manual

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car audio

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2-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 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 100d B

CAUSE PERMANENT HEARING LOSS. HIGH POWERED AUTOSOUND

MAY
SYSTEMS

MAY PRODUCE SOUND PRESSURE LEVELS WELL OVER

130dB. USE COMMON SENSE AND PRACTICE SAFE SOUND.

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 1-800-669-9899. 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:________________________________

T

ABLE OF

C

ONTENTS

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

Punch Amplifier 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 Component Values........................................................................13

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

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

Installation ............................................................................................... 16

System Diagrams......................................................................................20

Rockford Fosgate Accessories ..................................................................... 24

Troubleshooting........................................................................................ 26

Dynamic Power Measurements...................................................................29

Specifications ........................................................................................... 31

Warranty Information ................................................................................ 33

International Information............................................................................ 34

GETTING 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

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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Sections marked

ADVANCED OPERATION

include in-depth

technical information

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INSTALLATION

include “slam dunk”

wiring connections

include recommendations for

curing installation problems

Installation

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Sections marked

TROUBLESHOOTING

I

NTRODUCTION

Rockford engineers designed the Punch 55.2, 75.2, 125.2 and 225.2
amplifiers to withstand the rugged automotive environment while delivering
superior sound quality in a flexible, reliable, and efficient package. TRANS•ANA
is a low voltage circuit in the preamp stage of all Punch .2 amplifiers that
lets the music sound crystal clear and very real, even when played at high
volume levels. This is matched with TOPAZ, a unique grounding circuit used
to eliminate noise problems associated with car audio systems and their
installation. Flexibility is accomplished with the use of a built-in XCard.
Reliability is all but guaranteed with the use of a protection circuit called
NOMAD, while MOSFET and DSM (Discrete Surface Mount) technology
improve amplifier efficiency. The result of these components give the Punch
amplifier awesome sound quality in a “Bullet Proof” package. An explana­tion of these technologies, most of which are exclusively designed and
patented by Rockford, are described in the Technical Design Features.

P

UNCH

A

MPLIFIER

The accessory pack shipped with the Punch 2-channel amplifiers includes
the mounting hardware necessary to secure the amp to the vehicle and to
attach the end caps to the amplifier.

A

CCESSORY PACK

Installation & Operation Manual
Punch Verification Certificate
(4) Amplifier mounting screws (#8 x 3/4" Phillips)
(6) 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) ATC Inline Fuseholder (Punch 55.2, 75.2, 125.2)
(1) AGU Inline Fuseholder (Punch 225.2)
(1) ATC 20 Amp Fuse (Punch 55.2)
(1) ATC 30 Amp Fuse (Punch 75.2)
(1) ATC 40 Amp Fuse (Punch 125.2)
(1) AGU 50 Amp Fuse (Punch 225.2)

– 1 –

T

ECHNICAL

◆ TRANS•ANA

(TRANSconductance Active Nodal Amplifier)

The

TRANS•ANA

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•
advantages of a non-floating power supply.

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

◆ MEHSA (Maximum Efficiency Heat Sink Application)

The

MEHSA

process that yields up to 5 times better heat transfer than traditional FET
mounting techniques using the exact same components. A multi-layer
insulated metal substrate operating with minimal thermal resistance spreads
heat both downward & outward to quickly dissipate heat from each device
across the heat sink. This process combined with our DSM technology and
MOSFET devices allow us to squeeze more watts per cubic inch from every
output device as well as provide consistent thermal stability.

D

ESIGN FEATURES

(TRANSconductance Active Nodal Amplifier) is a circuit

nova

which is highly stable and linear while utilizing the

(Maximum Efficiency Heat-Sink Application) is a proprietary

THE RESULT: Optimized power output, enhanced thermal stability, and
maximum component reliability.

◆ TOPAZ (Tracking Operation Pre-Amplifier Zone)

The

TOPAZ

(Tracking Operation Pre-Amplifier Zone) circuitry solves ground
loop noise problems common to automotive amplifier design. This innovative
new development allows vastly improved isolation of the input signal grounds
from the power supply ground of the amplifier. This is accomplished by
allowing the source unit to control the potential “environment” of the entire
input structure or “zone” of the amplifier. This process improves the noise
rejection of the amplifier by 30-40dB – an astounding 30-100 times better
than amplifiers without TOPAZ.

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

– 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.

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

Figure 1

PC

Board

Thru-Hole Surface Mount

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

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 –

◆ MOSFET Devices

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

MOSFET

several important inherent advantages over the 30 year old technology of bi­polar 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 that they are more linear
than bi-polar 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 Transistor) devices offer

power supply

and the

output stages

◆ NOMAD (NOn-Multiplying Advanced Decision)

.

The Punch amplifiers use an
output power under all operating conditions. The innovative
Multiplying Advanced Decision) system is the most 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.

analog computer process

to maximize safe

NOMAD

(NOn-

◆ Punch EQ

The Punch EQ helps correct for acoustical deficiencies in the listening
environment. Two unique potentiometers that control bass and treble
compensate for the response errors present in most car environments. Unlike
conventional tone controls, Punch EQ corrects the specific problems of poor
low bass response and high frequency rolloff.

THE RESULT: Full range sound without excessive boost in areas where it is
not needed.

– 4 –

D

ESIGN 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.

Left
Gain

6 6

Left

Input

Right
Input

Right
Gain

Bass

3

8

+R–+L–

3 8 7 7

Speaker Speaker

Treble

49 5

LED

REM

GNDB+

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.

– 5 –

7. 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.

8. Punch Equalization Controls – The Punch EQ helps correct for

acoustical deficiencies in the listening environment. The Bass control
allows a narrow band adjustment of up to 18dB centered at 45Hz. The
Treble control is a wide band hinged adjustment with a maximum of
12dB at 20kHz. The Punch EQ can be bypassed by turning the
controls to their minimum or counterclockwise position.

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

10. XCard (Internal Crossover) – This built-in crossover card is

configurable for a multitude of operating frequencies. The orientation
of the card in its socket determines the function of high-pass, low-pass,
or full range operation.

®

27.5 Watts RMS continuous power per
channel into 4 Ohms with less than 0.08%
Total Harmonic Distortion from 20-20kHz

High-Pass

AMPLIFIER

®

ROCKFORD CORPORATION

MADE IN THE USA

HP

LP

10

Low-Pass

LP

HP

Full Range

FULL

+

L+ R–

For Bridged Mono Wiring

Connect 4Ω mono woofer + to L+ of amplifier

and mono woofer – to R– of amplifier. Amplifier

will operate mono/stereo simultaneously.

Do Not Chassis

Ground Any Speaker.

–

– 6 –

I

NSTALLATION

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
17' (518.16cm) Red Power Wire Assorted connectors
12' (365.76cm) Remote Turn-On Wire Wire crimpers

1.5' (45.72cm) Black Grounding Wire
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.

C

ONSIDERATIONS

– 7 –

M

OUNTING 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

B

ATTERY AND

C

HARGING

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.

W

IRING 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 crossovers prior to installation. Refer to

“Using the XCard” (page 14) 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 attach-

ment to the amplifier by stripping 5/8"
of insulation from the end of the wire.
To prevent the wire from fraying, strip
the insulation at a 45° angle. Insert
the bared wire into the B+ terminal

STRIP WIRE

AMP

>

5/8"

>

INSULATION

>

><

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 –

Punch 55.2, 75.2, 125.2

Trim the power cable to within 18" of the battery and install the protective
rubber boot, which is packed with the fuseholder, over the end of the wire.
Strip 3/8" of insulation from the wire and insert into the end of the
fuseholder, then crimp it in place. Slide the rubber boot into place to cover
the connection. Use the section of cable that was trimmed earlier and
connect it to the other end of the fuseholder.

Punch 225.2

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 ground connection. Strip
5/8" of insulation from the end of the cable as described previously
and connect to the appropriate terminal of the amplifier. Prepare the
chassis ground by scraping any paint from the metal surface and
thoroughly clean the area of all dirt and grease. Strip the other end of the
wire and attach a ring connector. Fasten the cable to the chassis using a
non-anodized screw and 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

– 10 –

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.

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 –

U

SING 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.

fiers are not recommended for impedance loads below 2Ω stereo and 4Ω
bridged (mono) loads.

CAUTION: The Punch ampli-

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T

ABLE OF CROSSOVER COMPONENT VALUES

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C

6dB/Octave High-Pass

8 OHMS

C

L C

Freq.
Hertz

L

6dB/Octave Low-Pass

2 OHMS

L

C L

Speaker Impedance

4 OHMS

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

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

For more information, see your Authorized Rockford Fosgate Dealer.

– 13 –

U

SING THE

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 shipped with
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.

XC

ARD

Low-Pass Full RangeHigh-Pass

➝

LP

HP

➝

➝

HP

LP

➝

FULL

↕

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.

a

O

3386

f

o

7234

f

o

= R (in kΩ) for .047µf cap

= R (in kΩ) for .022µf cap

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The actual formula is:

R =

1

2πfoc

Crossover Card

High Pass

R1

Low Pass
Full Range

R2

R1

FULL

R2

Where: R = Ω

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

– 14 –

R

ESISTOR

C

HART

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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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

– 15 –

I

NSTALLATION

Power Connections

I

® ®

N
S
T
A
L
L
A
T

I
O
N

LED

Connect to remote

turn-on lead of

source unit

Less than 18"

*Keep grounds as short as possible

REM

Connect to B+ of battery with

GNDB+

Connect to chassis
ground of vehicle*

appropriate fuse value

P75

P125

P225.

P55

.

2

- 20A

.2

- 30A

.2

- 40A

2

- 50A

– 16 –

Stereo Operation

RCA Input

I

® ®

N
S
T
A
L
L
A
T
I
O
N

Speaker
+L–

Treble

Gain

Left

Left

Input

Right
Input

Right
Gain

–

2Ω min.

2Ω min.

+

• RCA inputs are connected to

both left and right

• Gain for left and right channels operate

• Impedance for each channel should be

independently

2Ω minimum

Bass

+

–

Speaker
+R–

channels

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

– 17 –

Mono Operation

RCA Input

I

® ®

N
S
T
A
L
L
A
T
I
O
N

Speaker
+L–

Treble

• RCA inputs are connected to

Left

Left

Input

Gain

+–

4Ω min.

both left and right

• Gain for left and right channels are

Right

Right

Gain

Input

set equally

Speaker

+R–

Bass

channels

to balance

the subwoofer

• Impedance for mono channel should be

4Ω minimum

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

– 18 –

Stereo/Mono Operation

RCA Input

I

® ®

N
S
T
A
L
L
A
T
I
O
N

Speaker
+L–

Treble

–

+

Left

Left

Input

Gain

2Ω min. 2Ω min.

+–

4Ω min.

• RCA inputs are connected to both

• Gain for left and right channels are

Right

Right

Gain

Input

left and right channels

set equally

Speaker
+R–

Bass

+

–

to balance the

subwoofer

• Impedance for each channel should be

• Impedance for mono channel should be

• XCard is set for

Full Range

2Ω minimum

4Ω minimum

• Passive Crossovers are needed for proper stereo/mono operation

– 19 –

S

YSTEM

2-Way System

D

IAGRAMS

80Hz

12dB/octave HP

Crossover

Tweeter

Midrange

AUD

DISC

FM

ST

AM

PWR

VOL

® ®

Ch

RPTLD

RDM

CLOCK

ILLUM

AUTO

P.SCN LOUDDSPL

RDM

RPT

SCAN

D.SCN

1 2 3 4 5 6

DIM

R

SEL

TUNE

PAUSE

80Hz HP

XCard

Crossover

Tweeter

Midrange

– 20 –

3-Way System

80Hz

12dB/octave HP

80Hz HP

XCard

Tweeter

Midrange

Crossover

Front

AUD

DISC

FM

AM

PWR

VOL

® ®

ST

Ch

RPTLD

RDM

CLOCK

AUTO

P.SCN LOUDDSPL

RDM

RPT

SCAN

D.SCN

1 2 3 4 5 6

R

SEL

ILLUM

TUNE

DIM

PAUSE

Rear

80Hz

12dB/octave LP

80Hz LP

XCard

Crossover

Tweeter

8Ω

Woofer

8Ω

Midrange

Woofer

– 21 –

4-Way System

80Hz HP

12dB/octave HP

80Hz HP

24dB/octave HP

Tweeter

Midrange

AUD

PWR

VOL

3

Crossover

DISC

FM

AM

® ®

®

ST

Ch

RPTLD

RDM

®

CLOCK

ILLUM

AUTO

P.SCN LOUDDSPL

RDM

RPT

SCAN

D.SCN

1 2 3 4 5 6

Front

Crossover

DIM

SEL

PAUSE

Midbass

R

TUNE

4Ω

80Hz HP

XCard

80Hz HP

24dB/octave HP

Tweeter

Midrange

80Hz

24dB/octave HP
12dB/octave LP

275Hz LP

XCard

275Hz

80Hz LP

XCard

30Hz

12dB/octave HP

– 22 –

Woofer

8Ω

30Hz

12dB/octave HP

12dB/octave LP

80Hz

4-Way System w/Fadable Rear Stage

80Hz HP

12dB/octave HP

80Hz HP

24dB/octave HP

30Hz

12dB/octave HP

Tweeter

Midrange

3

Crossover

AUD

DISC

FM

ST

AM

PWR

VOL

® ®

Ch

RPTLD

RDM

CLOCK

ILLUM

AUTO

P.SCN LOUDDSPL

RDM

RPT

SCAN

D.SCN

1 2 3 4 5 6

Front

®

®

DIM

Rear

R

SEL

TUNE

PAUSE

80Hz HP

XCard

Crossover

80Hz HP

24dB/octave HP

Tweeter

Midrange

275Hz LP

XCard

Midbass

4Ω

275Hz

80Hz

24dB/octave HP
12dB/octave LP

80Hz LP

XCard

Woofer

8Ω

30Hz

80Hz
12dB/octave HP
12dB/octave LP

80Hz HP

12dB/octave HP

Tweeter

Midrange

Crossover

– 23 –

80Hz HP

XCard

Crossover

Tweeter

Midrange

R

OCKFORD FOSGATE

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.

A

CCESSORIES

LED

Battery +

REM

B+ GND

® ®

the connecting

1.0

1.0

punch

cap

1 farad • 20 VDC • 95°C

®

• Recommended capacitance is 1 farad per 1000 watts

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

– 24 –

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

Crossover Card

High Pass

R1

R2

Low Pass
Full Range

R1

FULL

R2

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

– 25 –

T

ROUBLESHOOTING

Symptom Diagnosis Remedy

TROUBLE-

S
H
O
O
T
I
N
G

Amplifier does not
turn on

(Power LED is off)

Amplifier has no
sound

(Power LED is on)

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.

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.

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.

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.

Speakers are defective.

– 26 –

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

Symptom Diagnosis Remedy

TROUBLE-

S
H
O
O
T
I
N
G

Speaker Output
Low or Distorted

Amplifier Noise

(Turn-on Pop)

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.

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.

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.

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.

– 27 –

Symptom Diagnosis Remedy

TROUBLE-

S
H
O
O
T
I
N
G

Engine Noise

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.

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

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.

Ground loop between source
unit and antenna.

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.

– 28 –

D

YNAMIC POWER

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
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

unusable

actual usable output power

M

EASUREMENTS

. Many manufacturers represent their amplifiers' output

.

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.

– 29 –

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

presented on the vertical axis and the

Output Power,

is expressed on the horizontal axis, the

Impedance

is displayed on the Z axis.

Output Voltage

is

in watts, is listed on the left hand side for each impedance at

each phase angle.

Audio Graph – The PowerCube™

MODEL BEING

TESTED

Amplifier:

PUNCH 200.2 14.4V x 2
Serial No:
Owner :

ROCKFORD CORPORATION

85 W

8Ω –60°

*

84 W

–30°

84 W

0°

84 W

30°

86 W

60°

162 W

4Ω –60°

*

157 W

–30°

156 W

0°

157 W

30°

162 W

60°

273 W

2Ω –60°

*

IMPEDANCE

258 W

–30°

251 W

0°

256 W

30°

271 W

60°

390 W

1Ω –60°

*

356 W

–30°

346 W

0°

352 W

30°

390 W

60°

VOLTAGE FROM

BATTERY

POWER

IN

WATTS

{

–60° (Cap)

• Example of a Punch 200.2 PowerCube

MONO = BRIDGED MONO

0°

{

PHASE ANGLES

x2 = STEREO

Rated Power : 100 W @ 4 Ohms

(Ind) +60°

50V

30V

10V

OUTPUT VOLTAGE

8Ω

4Ω

2Ω

1Ω

{

Impedance

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 Audio Graph 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!

– 30 –

2

2 PUNCH 225.

PUNCH 75.2 PUNCH 125.

PUNCH 55.2

Dynamic Power Rating (IHF-202 Standard) - Measured at 14.4 Volts

PECIFICATIONS

S

Mono into a 4Ω Load 240 Watts 320 Watts 440 Watts 690 Watts

Per channel into a 2Ω Load 120 Watts 160 Watts 220 Watts 345 Watts

Per channel into a 4Ω Load 85 Watts 105 Watts 145 Watts 220 Watts

Continuous Power Rating (Competition Standard) - Measured at 13.8 Battery Volts

RMS continuous power per channel,

both channels driven into a 4Ω load 27.5 Watts 37.5 Watts 62.5 Watts 112.5 Watts

from 20 to 20,000 Hz with less than

0.05% Total Harmonic Distortion (THD)

RMS continuous power per channel,

both channels driven into a 2Ω load 55 Watts 75 Watts 125 Watts 225 Watts

from 20 to 20,000 Hz, with less than

0.1% Total Harmonic Distortion (THD)

RMS continuous power mono into a

4Ω load from 20 to 20,000 Hz, with 110 Watts 150 Watts 250 Watts 450 Watts

less than 0.1% Total Harmonic

Distortion (THD)

Signal-to-Noise Ratio > 100dB A-weighted

Crossover Slope 12dB/octave Butterworth

Factory Default Crossover Frequency 80Hz adjustable (.047µf)

– 31 –

2

/8" (24.4cm) W

⁄32" (33.70cm) L

5

9

2 PUNCH 225.

PUNCH 125.

/8" (24.4cm) W 9

⁄32" (31.16cm) L 13

5

9

PUNCH 75.2

/8" (24.4cm) W 9

⁄32" (28.65cm) L 12

5

9

/8" ( 6.6cm) H

5

/8" ( 6.6cm) H 2

5

/8" ( 6.6cm) H 2

5

Treble: +12dB Maximum at 20kHz

2

PUNCH 55.

⁄32" (26.1cm) L 11

9

/8" (24.4cm) W 9

5

10

Dimensions 9

Specifications are subject to change without notice.

/8" (6.6cm) H 2

5

2

Frequency Response 20Hz to 20kHz ±0.5dB

Bandwidth 10Hz to 200kHz ±3dB

Damping Factor @ 4Ω (at output connector ) >200

Slew Rate 30 Volts µs

IM Distortion (IHF) <0.05%

Source Unit Compatibility (+15dB gain overlap) 17V max.

overload. Thermal switch shuts down the amplifier in case of overheating.

Input Sensitivity (+0dB gain overlap) Variable from 150mV to 3V

Protection NOMAD - Internal analog-computer output protection circuitry limits power in case of

Battery Fusing Rates (External to Amplifier) 20 amps 30 amps 40 amps 50 amps

Fuse Type ATC ATC ATC AGU

Equalization Bass: +18dB Maximum at 45Hz

Input Impedance 20k ohms

– 32 –

L

IMITED

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)
1 year on speakers

• 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

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

W

Service Center

ARRANTY INFORMATION

• 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.

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

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

– 33 –

INTERNATIONAL

I NFORMATION

– 34 –

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

I

NTRODUCCION

Los ingenieros de Rockford han diseñado los amplificadores Punch.2 para
ofrecer en el dificil entorno de un automóvil una calidad de sonido superior en
un producto flexible, fiable y eficiente. Trans•
en la etapa de preamplificación de los amplificadores Punch.2 que permite que
la musica suene limpia y cristalina y muy real, incluso a altos niveles de
audicion. Esto se complementa con el TOPAZ, un circuito exclusivo de masa
utilizado para eliminar los ruidos asociados con las instalaciones de car-audio.
La flexibilidad esta garantizada con el uso de la XCard incorporada. La
fiabilidad se refuerza con el uso de un circuito de proteccion llamado NOMAD,
mientras que los MOSFET y la tecnologia DSM (montaje discreto en superficie)
aumentan la eficiencia del amplificador. La combinacion de todos estos
componentes dan al amplificador Punch una impresionante calidad de sonido
en un chasis discreto. Mas adelante encontrará mas explicaciones de todas
estas tecnologías, la mayoria de ellas usados en exclusiva y patentadas por
Rockford.

ana

es un circuito de baja tensión

U

BICACIÓN PARA EL

M

ONTAJE

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.

– 35 –

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.

Funcionamiento Estereo/Mono

RCA Input

ESPAÑOL

Speaker
+L–

Treble

–

+

Left

Left

Input

Gain

2Ω min. 2Ω min.

+–

• Las entradas RCA se conectan a ambos

4Ω min.

Right

Right

Gain

Input

canales izquierdo y derecho

• Las ganancias izquierda y derecha han de

ajustarse igual

Speaker

+R–

Bass

+

–

para ambos

canales

• La impedancia minima para cada canal debe ser

• La impedancia minima mono debe ser

• XCard en

Full Range

4Ω.

2Ω.

• Debe usarse un filtro pasivo para la configuracion estereo/mono

• No llevar a masa ningun cable de altavoz

• Crossovers pasivos se requieren para operar el amplificador en estereo/
mono

– 36 –

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

I

NTRODUCTION

Les ingénieurs de Rockford Fosgate ont conçu l'amplificateur Punch.2 pour
supporter l'environnement rude de l'automobile en délivrant une qualité de son
supérieure dans un ensemble efficace, fiable et flexible. Trans•
de bas voltage dans l'étage de préamplification de tous les ampificateurs
Punch.2 qui reproduit un son musical clair comme du cristal et très réel, même
à très haut volume. Ceci est accompagné du TOPAZ, un circuit unique employé
pour éliminer les problèmes de bruits parasites associés aux systémes audiomobile
et leur installation. La flexibilité est assurée par l'emploi d'une XCard incorporée.

La fiabilité est garantie grâce au circuit de protection NOMAD, la technologie
MOSFET et DSM (Composants Montés en Surface) améliorent l'efficacité de
l'amplificateur.

L'ensemble de ces atouts donne à l'amplificateur Punch une qualité de son
inégalable sous une carrosserie “pare-balles.”

Vous trouverez de plus amples informations sur ces technologies, exclusivement
conçues et brevetées par Rockford, dans la rubrique technique.

ana

est un circuit

M

ONTAGE

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.

– 37 –

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.

Opération stéréo/mono (tri
mode)

RCA Input

Speaker

+L–

Treble

–

+

Left

Gain

2Ω min. 2Ω min.

Input

Input

+–

4Ω min.

Right

Left

Right
Gain

Speaker
+R–

Bass

+

–

• Les entrées RCA sont connectées aux canaux gauche et droit

• Les Gains des canaux gauche et droit sont réglés de la même manière
pour équilibrer le subwoofer

• L'impédance de chaque canal devrait être de minimum 2Ω

• L'impédance du canal mono devrait être de minimum 4Ω

• Les XCard sont introduites sur full range

• Il est conseillé d'utiliser les filtres passifs lorsqu'on fait fonctionner
l'amplificateur en tri-mode

•

NE connecter AUCUN des câbles HP à la masse au risque d'un
fonctionnement instable

• Des filtres passifs sont nécessaires pour un bon fonctionnement en
mode stéréo/mono

FRANÇAIS

– 38 –

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.

E

INLEITUNG

Rockford Ingenieure haben die Punch.2 Verstärker entwickelt. Mit höchstem
Technologie-Standart, hervorragender Klangqualität, einfacher Handhabung
und bester Servicefreundlichkeit Trans•
Vorverstärkerteil aller Pünch.2 Verstärker die für kristallklaren Klang auch bei
sehr hohen Lautstärken sorgt. TOPAZ, eine einzigartige Erdungsschaltung
verhindert und unterdrückt Einstreuungen und Störungen die nur allzu oft Car
Audio Systeme beeinträchtigen. Flexibilität durch die Vielfalt der Aktivweiche mit
ihren XCards, lange Lebensdauer durch die Schutzschaltung NOMAD und der
Einsatz von MOSFET Transistoren und DSM (Discrete Surface Mount), machen
diese Verstärker so effizient. Das Ergebnis all dieser Komponenten machen
Punch-Verstärker so einzigartig und in ihrer Klangqualität nahezu unschlagbar.
Eine genauere Beschreibung dieser Technologien, die gröbtenteils einzigartig
und von Rockford patentiert sind, finden Sie unter Technical Design Features.

E

INBAUORT

ana

ist eine Nieder-Volt Schaltung im

Im Fahrzeugkofferraum

Der vertikale Einbau der Endstufen, das bedeutet, dab 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+ Anschluβ

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.

– 39 –

GND Anschluβ

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

REM Anschluβ

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 Anschlub nicht besitzen, so verwenden Sie eine 12
Volt Spannung, die Sie durch einen Schalter ein- und ausschalten können.

Stereo/Mono Operation

Speaker
+L–

• Chinch Eingänge des

Treble

–

+

rechten- und linken-Kanales anschlieben

RCA Input

Right

Left

Left

Gain

2Ω min. 2Ω min.

Input

Input

+–

4Ω min.

Right
Gain

Speaker
+R–

Bass

+

–

• Gain -Kontrolle gleich stellen um das Signal des Subwoofer

anzugleichen

• Die Impedanz für jeden Kanal sollte

• Die Impedanz des Mono Kanales sollte

• Die Akltivweichen-Module sollten auf jeden

minimum 2 Ohm betragen.

minimum 4 Ohm betragen

Fall im Stereo/Mono Betrieb

verwendet werden

•

Vermeiden Sie auf jeden Fall eine Erdung der Lautsprecher-Kabel, da
sonst ein einwandfreier Betrieb nicht grantiert werden kann

• Passive Frequenzweichen werden für korrekte Stereo/Mono Operationen

benötigt

DEUTSCH

– 40 –

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.

I

NTRODUZIONE

Gli ingenieri Rockford hanno progettato la serie di amplificatori Punch.2 per
resistere all'ostico ambiente automobilistico mentre suonano con una musicalitá
superiore, offrendo un insieme versatile, affidabile ed efficiente. Trans•
circuito a bassa tensione dello stadio preamplificatore del Punch.2 che permette
al suono di essere cristallino e reale anche in presenza di volumi molto
elevati…tutto questo é accoppiato TOPAZ, un exclusivo circuito di massa
impiegato per eliminare i problemi di rumore comunemente presenti negli
impianti car audio. Il massimo della versatilitá é raggiunto con l'impiego delle
XCard. L'affidabilitá é completamente garantita dall'impiego di un circuito di
protezione chiamato NOMAD, mentre l'uso di MOSFET e della tecnologia DSM
(Discrete Surface Mount) permette di raggiungere efficienze elevatissime. Il
risultato finale di tutte queste tecnnologie moderne é che gli amplificatori Punch
suonano meravigliosamente e sono indistruttibili, a “prova di proiettile.” Una
spiegazione di queste tecnologie innovative, molte coperte da brevetti Rockford,
sono descritte in un'altra sezione di questo manuale.

ana

é un

D

OVE POSIZIONARLO

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.

– 41 –

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.

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.

Stereo/Mono Operation

Speaker
+L–

Treble

–

+

RCA Input

Right

Left

Gain

Left

Input

Input

2Ω min. 2Ω min.

+–

4Ω min.

Right
Gain

Speaker

+R–

Bass

+

–

• Ingressi RCA collegati sia al canale destro sia al sinistro

• Gain (controllo di sensibilitá) regolati in modo identico per bilanciare il
subwoofer

• L'impedenza di ciascun canale deve essere minimo 2Ω

• L'impedenza per il canale mono deve essere minimo 4Ω

• La scheda XCard deve essere in posizione Full Range

• Nel funzionamento Stereo/Mono simultaneo devono essere impiegati i
crossover passivi

•

Non cortocircuitare a massa nessun cavo degli altoparlanti, potrebbe
portare ad un funzionamento irregolare

• Crossover passivi sono indispensabili per un corretto funzionamento

stereo/mono

ITALIANO

– 42 –

N

OTES

N

OTES

MADE IN THE USA

This product is designed, developed and assembled in the USA by a dedicated group of

American workers. The majority of the components used in the construction of this product

are produced by American companies. However, due to the global nature of their

manufacturing facilities and the loudspeaker parts industry in general, some parts may be

10/97
MAN-1849-A

manufactured in other countries.

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]