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Rockford Fosgate punch 400x4 Installation & Operation Manual

Punch series 4-channel amplifier
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Summary of Contents for Rockford Fosgate punch 400x4

  • Page 1 ® a n a t r a n s • HANNEL MPLIFIER & O NSTALLATION PERATION ANUAL ® ®...

  • Page 3: Practice Safe Sound

    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.

  • Page 4: Table Of Contents

    Basic Connections in the Installation section of this manual. Other information can be located by using the Table of Contents. We, at Rockford Fosgate, have worked very hard to make sure all the information in this manual is current. But, as we are constantly finding new ways to improve our product, this information is subject to change without notice.

  • Page 5: Introduction

    N T R O D U C T I O N The Punch 400x amplifier which can deliver 400 watts RMS. This amplifier utilizes a 2/4-channel input switch to eliminate the need for signal splitters. Four internal XCard crossovers allow the ampli- fier to be configured for use with many popular system designs without the added cost of external processors.

  • Page 6: Rockford Fosgate Accessories

    XCard Additional crossover card frequencies are available for special- ized requirements. You can get the following XCards from your Authorized Rockford Fosgate Dealer. XM50 = XM70 = XM100 = 100Hz XM150 = 150Hz...

  • Page 7: Technical Design Features

    ECHNICAL TRANS•ANA 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 driver transistors at ultrasonic frequencies.
  • Page 8 The DSM (Discrete Surface Mount) manufacturing process com- bines the advantages of both discrete components and integrated circuitry. Rockford Fosgate is the only American amplifier manu- facturer to have invested millions into this process. DSM compo- nents differ from conventional discrete components in three ways.
  • Page 9 MOSFET Devices Rockford Fosgate is one of the few manufacturers in the audio industry 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 advan- tages over the 30 year old technology of bi-polar design.
  • Page 10 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.

  • Page 11: Design Features

    ESIGN EATURES 1. Cast Aluminum Heatsink – The cast aluminum heatsink of the Punch amplifier dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs. 2. End Caps – Interchangeable end caps conceal the wiring and input cables, giving the amplifier a clean “stealth”...
  • Page 12 7. Signal Input Switch – This switch allows selection of 2-channel or 4-channel input. 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.

  • Page 13: Installation Considerations

    N S TA L L AT I O N The following is a list of tools you will need for installing the Punch amplifier: Allen wrenches 7/64" & 3/32" (included) Wire strippers Electric hand drill w/assorted bits Wire crimpers This section focuses on some of the vehicle considerations for installing your new Punch amplifier.

  • Page 14: Mounting Location

    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.

  • Page 15: Battery And Charging

    Rockford amplifier without problems, although battery and alternator life can be reduced slightly. To maximize the performance of your Rockford Fosgate amplifier, we suggest the use of a heavy duty battery, high output alternator and an energy storage capacitor.
  • Page 16 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".
  • Page 17 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.

  • Page 18: Using The Xcard

    S I N G T H E The crossover functions are controlled through the use of an XCard and can be set for high-pass, low-pass or full range operation. Each crossover card has two faces: one face operates Full Range, the other has arrows to indicate the edge for selecting HP (high-pass) or LP (low-pass) operation.

  • Page 19: Xcard Configurations

    ONFIGURATIONS Configure a 12dB/octave filter for the Front channels. + L – Rear XCard Rear 1 XCard Rear 2 XCard Pass-Thru • Front XCard set to High-Pass or Low-Pass Configure a 12dB/octave filter for the Rear channels. + L – Rear 20Hz-100Hz 12dB/octave LP...
  • Page 20 • Rear XCard 1 inserted as High-Pass • Rear XCard 2 inserted as Low-Pass * The 400x4 is shipped with 100Hz 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.
  • Page 21 Configure a 12dB/octave filter for the Pass-Thru Front Rear 0/180 Gain Gain 20Hz-100Hz 12dB/octave LP XCard Front XCard Rear1 XCard Rear2 XCard Pass-Thru • Pass-Thru XCard set to High-Pass or Low-Pass – 17 –...

  • Page 22: Using The Signal Input Switch

    SING THE IGNAL 2-Channel Input Front Gain + L – Rear • 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 NPUT INPUT 0 /180...
  • Page 23 4-Channel Input Front Gain + L – + R – 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 INPUT 0 /180 Input...

  • Page 24: Basic Connections

    ASIC ONN ECTI ON S Power Connections + L – + R – – L + – R + Connect to remote turn-on lead of source unit Connect to chassis ground of vehicle* Less than 18" Connect to B+ of battery with a 50 amp fuse *Keep grounds as short as possible.
  • Page 25 2-Channel Stereo Operation Front Gain + L – + R – Rear 4 ohm min. left • 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 •...
  • Page 26 2-Channel Mono Operation Front Gain + L – Rear 4 ohm min. • 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 •...
  • Page 27 3-Channel Operation Front Gain + L – + R – Rear 4 ohm min. • 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 * •...
  • Page 28 4-Channel Stereo Operation Front Gain + L – + R – Rear – 2 ohm min. • 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 * •...
  • Page 29 4-Channel Stereo/Single Mono Operation Front Gain + L – + R – Rear – 2 ohm min. • 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 •...
  • Page 30 4-Channel Stereo/Dual Mono Operation Front Gain + L – + R – Rear – 2 ohm min. 4 ohm min. • RCAs are connected to front or front and rear inputs • Signal Input Switch is set to 2-channel or 4-channel input •...

  • Page 31: System Diagrams

    Y S T E M I A G R A M S 200 Watt 3-Way System Rear Front ® ® t r a n s a n a • RFA-414 RFA-414 – – – 2X-4 2X-4 – – – – –...
  • Page 32 400 Watt 4-Way System Front Rear Pass-Thru ® ® t r a n s a n a • – – RFA-414 RFA-414 – – 2X-4 2X-4 – – – 100Hz - 275Hz 12dB/octave LP 12dB/octave HP – 275Hz - 20kHz 12dB/octave HP RFA-812 –...
  • Page 33 600 Watt 4-Way System ® D S M – 29 –...
  • Page 34 800 Watt 4-Way System D S M D S M – 30 – ® ®...

  • Page 35: Troubleshooting

    R O U B L E S H O O T I N G Symptom Amplifier does not Voltage applied to the turn on REM terminal of the (Power LED is off) amplifier is not between 10.5 and 15.5 volts or there is no voltage present.
  • Page 36 Symptom Speaker Output Input gain signal for Low or Distorted amplifier is incorrectly set. Source unit output too low or source unit has no output. XCard is missing or not placed properly in cross- over slots. Low battery voltage or large voltage drops to the amplifier under load.
  • Page 37 Multiple grounds in the audio system. Ground loop between source unit and antenna. • If noise persists, see your Authorized Rockford Fosgate Dealer. Diagnosis Check connections, run the RCA cables on a different route away from sources of high voltage.

  • Page 38: Dynamic Power Measurements

    Many manufac- turers, including Rockford Fosgate, at times will measure amplifier power into a fixed resistor (4 ohm, 2 ohm). While this method is useful in some types of evaluation and testing, it is not representative of an amplifier that is connected to a speaker and playing music.
  • Page 39 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.

  • Page 40: 400X 4 Specifications

    P E C I F I C A T I O N S Continuous Power Rating (Competition Standard) – Measured at 13.8V RMS continuous power per channel, all channels driven into a 4 load from 20-20,000Hz with less than 0.05% Total Harmonic Distortion (THD) RMS continuous power per channel, all channels driven into a 2 load from 20-20000Hz, with less than 0.1% Total Harmonic Distortion (THD)

  • Page 41: Warranty Information

    Electronics found to be defective during the warranty period will be repaired or replaced at Rockford Fosgate’s discretion. Repaired or replaced electronics will be covered by the balance of the original warranty period only. Rockford Fosgate shall not be responsible for any incidental or consequential damages resulting from a defect in electronics.
  • Page 42 OTES...
  • Page 43 OTES...
  • Page 44 6/95 MAN-0993-A Rockford Fosgate Rockford Corporation 546 South Rockford Drive Tempe, Arizona 85281 U.S.A. In U.S.A., (602) 967-3565 In Europe, Fax (49) 4207-801250 In Japan, Fax (81) 559-79-1265...

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