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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 1
® ® DSM 4-CHANNEL AMPLIFIER OWNER'S MANUAL ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 2
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 engineer- ing expertise, hand craftsmanship and critical testing procedures, we have created a wide range of pr ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 3
T ABLE OF CONTENTS Specifications ................................................................................... 1 Punch 4-Channel Accessory Pack ................................................... 3 Introduction ...................................................................................... 4 Features and Benefits ..................... ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 4
1 SPECIFICA TIONS PUNCH 4040DSM PUNCH 4080DSM Dynamic Power Rating (IHF-202 Standard) - Measured at 14.4 Volts 1 Bridged into a 4 Ω Load 115 Watts X 2 220 Watts x 2 Per channel into a 2 Ω Load 55 Watts X 4 100 Watts x 4 Per channel into a 4 Ω Load 35 Watts X 4 60 Watts x 4 Continuous Power Rating (IASCA Standard) RMS continuous power per chan ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 5
2 PUNCH 4040DSM PUNCH 4080DSM Dimensions 9-5/8" (24.4cm) W 9-5/8" (24.4cm) W 12-5/8" (32.0cm) L 13-5/8" (34.6cm) L 2-5/8" ( 6.6cm) H 2-5/8" ( 6.6cm) H Bandwidth 15Hz to 100kHz Damping Factor @ 4 Ω At output connector - Over 150 Frequency Response 20Hz to 20kHz ± 1dB / 10Hz to 100kHz -3dB Crossover 12dB/octave with s ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 6
PUNCH 4-CHANNEL ACCESSOR Y P ACK 3 17' (518cm) Red Power Wire 12' (366cm) Blue Remote Turn-on Wire 1.5' (46cm) Black Grounding Wire Punch Verification Certificate Punch Owner's Manual Remote Turn-on Wire Connector Plug Power Ring Terminals Allen Head Set Screws and Mounting Screws Fuse Holder 4040 Fuse Holder 4080 ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 7
4 INTRODUCTION This manual provides information on the features, instal- lation, and operation of the Punch 4040 DSM and 4080 DSM Amplifiers. We suggest you save this manual for future reference. We strongly recommend you have your Authorized Rock- ford Fosgate Dealer install your new Punch 4-channel amplifier. If you do choose to install the ampli ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 8
5 Real Time Power Protection (R.T.P.P.) allows for the greatest power output under all load conditions. When output reaches an unsafe level it will be reduced, unlike current limiting which often causes premature protection or failure to protect at all. To get a better understanding of the Punch let ’ s take a closer look. This section describes ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 9
6 B+/GND Power Connector LED Power Indicator REM Connector Four (4) custom, round, hex screws included in the acces- sory pack hold the unit in place. These screws are covered when the end caps are installed. The Punch 4-Channel is turned on by connecting the blue remote turn-on wire to the source unit ’ s “ Accessory ” or “ Auto Antenna ? ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 10
Input/Output Terminal Side 7 Front Treble Adjustment Control Front Bass Adjustment Control Front Input Gain Control Rear Treble Adjustment Control Rear Input Gain Control Rear Bass Adjustment Control This switch allows you to use the front input to drive both Front and Rear channels. Switching to Rear position allows you to run separate Front and R ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 11
8 The amplifier ’ s signal input, female, RCA jacks should be connected to the source unit ’ s signal outputs with high- quality RCA cables. The connectors have been plated in gold to eliminate the possibility of corrosion that can cause signal deterioration. These pass-thru connectors allow you to daisy-chain an additional Punch amplifier with ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 12
9 4. 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. 5. For safety , disconnect the battery ground cable prior to beginning the installation process. 6. Never run wires underneath the vehicle. The cleanest, safest wiring conne ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 13
MOUNTING AND LOCA TION The mounting location and position of the Punch 4- Channel will have a great effect on its ability to dissipate the heat generated in normal operation. The Punch 4- Channel has a heatsink designed for heat dissipation and internal shutoff circuitry to avoid overheating. It is reasonably tolerant of mounting variations. Howeve ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 14
2. For the Punch 4040, place the protective boot onto the wire. Insert the wire into one end of the fuse holder so that the insulation is just inside the crimp area as shown in the diagram. Crimp the wire in place with the notched portion of a crimping tool. Cover the crimped area with the protective boot that is supplied with the fuse holder. 11 F ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 15
12 Wiring the Ring and Spade Connectors 1. Strip back approximately 3/8" (1cm) of insulation. 2. Insert the bare wire into the connector and crimp in place as shown in the following diagram: 3/8" (1cm) { { Crimp Here Wire w/insulation Bare Wire Connectors Crimp Here This connector is used for the Red Power wire and Black Ground wire. This ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 16
13 > < 5/8" INSULA TION STRIP WIRE > > AMP > The GND terminal grounds the amplifier and is con- nected to the chassis of the vehicle with 12 gauge, or heavier, stranded wire. When grounding, scrape paint off metal to ensure a good, clean ground connection. To prevent ground loops, we recommend you refrain from extending the grou ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 17
14 Punch 4-Channel amplifiers are rated for safe operation into loads of 2 Ω , or greater in stereo mode or 4 Ω in bridged/mono configurations. The primary loads on any amplifier come from directly connected speakers without using capacitors. The measured resistance for each side should not be less than 2 Ω stereo or 4 Ω bridged/mono. The P ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 18
The most commonly used filter networks are 6 dB per octave systems. These are easy to construct and require a minimum number of parts. A filter network can perform one of three functions. These are highpass (capacitors), lowpass (inductors, chokes or coils) and bandpass (com- bination of a capacitor and a coil). The result, limiting the types of fr ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 19
16 Table of Component Values 6 dB/Octave Low Pass 6 dB/Octave High Pass Freq. Hertz Speaker Impedance 80 4.1mH 1000 µ F 8.2mH 500 µ F 16mH 250 µ F 100 3.1mH 800 µ F 6.2mH 400 µ F 12mH 200 µ F 130 2.4mH 600 µ F 4.7mH 300 µ F 10mH 150 µ F 200 1.6mH 400 µ F 3.3mH 200 µ F 6.8mH 100 µ F 260 1.2mH 300 µ F 2.4mH 150 µ F 4.7mH 75 µ F 400 .8m ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 20
The Punch 4-Channel amplifiers feature selectable elec- tronic crossovers. Selection is made by positioning of a removable module card. These modules control the output channels and can be configured in a High Pass, Low Pass or Full Range (factory default) position. The 4- Channel amplifiers are shipped with 100Hz 12dB per octave Butterworth aligne ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 21
SAMPLE WIRING DIAGRAMS 18 – + – + 4 Ohm (2 Ω min.) Mid Range/ T weeter Input switch set to F Front crossover set to 100 Hz High Pass Rear crossover set to 100 Hz Low Pass Front+Rear summed output not used Phase switch set to 0 ° +RIGHT – REM B+ GND + LEFT – REAR (bridge) +RIGHT – + LEFT – FRONT (bridge) 4 Ohm (2 Ω min.) Mid Range/ ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 22
19 2-CHANNEL BRIDGED STEREO Input switch set to R Set Front & Rear crossover to the same point Front+Rear summed output not used Phase switch set to 0 ° +RIGHT – REM B+ GND + LEFT – REAR (bridge) +RIGHT – + LEFT – FRONT (bridge) 4 Ω Right – + SOURCE UNIT TREBLE GAIN BASS FRONT FRONT FRNT+REAR REAR OUT IN IN R L R L TREBLE GAIN BASS ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 23
20 2-CHANNEL BRIDGED STEREO * * In this mode the phase switch should always be at 180 ° . Switching to the 0 ° position will result in an "out of phase" condition and a loss of output. (Alternate Version: 100Hz High Pass Front & Rear -4 Ω Full Range) Input switch set to F Set Front & Rear crossover to the same point Front+Rear ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 24
21 – + – + 4 Ohm (2 Ω min.) Mid Range/ T weeter Input switch set to F Front crossover set to 100 Hz High Pass Rear crossover set to 100 Hz Low Pass Front+Rear summed output not used Phase switch set to 0 ° +RIGHT – REM B+ GND + LEFT – REAR (bridge) +RIGHT – + LEFT – FRONT (bridge) Subwoofer – + – + Subwoofer 4 Ohm (2 Ω min.) Mi ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 25
22 4-CHANNEL WITH BRIDGED SUBWOOFER • Allows front to rear fading • Sub-woofer is optional • Sub-woofer can be bridged on front or rear or both – + – + Input switch set to Rear Front crossover set to Full Range Rear crossover set to Full Range Front+Rear summed output not used Phase switch set to 0 ° +RIGHT – REM B+ GND + LEFT – REAR ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 26
23 – + – + Full Range Input switch set to Rear Front crossover set to Full Range Rear crossover set to Full Range Front+Rear crossover set to 100Hz Low Pass Phase switch set to 0 ° +RIGHT – REM B+ GND + LEFT – REAR (bridge) +RIGHT – + LEFT – FRONT (bridge) Full Range BIAMPLIFIED 4-CHANNEL with SUBWOOFER AMP Subwoofer – + SOURCE UNIT ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 27
24 4 Ω Woofer – + Input switch set to F Set Front & Rear crossovers to the same point Front+Rear summed output not used Phase switch set to 0 ° * +RIGHT – REM B+ GND + LEFT – REAR (bridge) +RIGHT – + LEFT – FRONT (bridge) 4 Ω Woofer – + SOURCE UNIT TREBLE GAIN BASS FRONT FRONT FRNT+REAR REAR OUT IN IN R L R L TREBLE GAIN BASS R ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 28
Problem Amplifier will not play – Remote turn-on light is off. Solution 1. Check the DC voltage at the amplifier's B+ terminal with a voltmeter. The voltage should measure be- tween 11.5V - 15.5V. If voltage is not found, check the battery, fuse, fuse housing and wire connections. Fix, repair, or replace accordingly. 2. If the amplifier stil ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 29
26 Problem Amplifier gets too hot. Solution 1. Be sure the amplifier is properly mounted. You should be able to place your hand a few inches above the amplifier housing and feel the heat rising when the unit is on. Hot air rises, consequently, mount the amplifier with the heatsink fins aligned vertically. This allows the air to flow freely, carryin ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 30
Problem Engine Noise (Whine) Solution 1. Disconnect the speakers from the amplifier. Connect a test speaker to the amplifier output terminals. If the noise goes away, check your speaker leads, speakers and crossovers. 2. If the noise persists, use a "shorting plug" to mute the input signal at the amplifier. If the noise goes away: a. Bypa ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 31
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 repre- sents the Real World ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 32
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 ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 33
30 What is an Amplifier? An amplifier by definition is a voltage generating device, recreating the signal which is input to in an identical but amplified form. 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 and amplitude of th ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 34
W ARRANTY INFORMA TION Rockford Fosgate warrants all electronics to the original consumer/purchaser to be free from defects in materials or workmanship for a period of three (3) years. We will cover parts and labor provided the product was purchased from an Authorized Rockford Fosgate Dealer. This warranty does not apply to any product on which the ...
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Rockford Fosgate 4-CHANNEL AMPLIFIER - page 35
Rockford Fosgate A Division of Rockford Corporation 546 South Rockford Drive Tempe, Arizona 85281 U.S.A. In U.S.A., (602) 967-3565 In Canada, call Korbon (416) 567-1929 In Europe, Fax (49) 4207-801250 REV. B 4/93 MAN-0288 ...
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