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trans • ana
4-CHANNEL AMPLIFIER
INSTALLATION & OPERATION
MANUAL
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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 i
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TABLE OF CONTENTS Introduction ...................................................................................... 1 Punch 4-Channel Amplifier Accessory Pack ...................................... 1 Rockford Fosgate Accessories............................................................ 2 Technical Design Features ................................................................ 3 Design Features................................................................................. 7 Installation Co
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INTRODUCTION The Punch 400x (pronounced “x4” not “by 4”) is a 4-channel 4 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. The Punch 400x 4 is a powerful 4-channel amplifier with integrated features which are offered at a competitive price. We strongly
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ROCKFORD FOSGATE ACCESSORIES The following accessories were designed to enhance the perfor- mance of the Punch 400x amplifiers. 4 Energy Storage Capacitor The Punch capacitors are used to provide extra current needed by amplifiers to reproduce musical transients. The Punch Caps also have the natural ability to filter AC ripple caused by the alternator, reducing the chance of noise in the system. The Punch Caps will maximize both the sound quality and performance that Rockford Fosgate amplifiers
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TECHNICAL DESIGN FEATURES 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 driver transistors at ultrasonic frequencies. This allows amplifier perfor- mance similar to trans•nova which is
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DSM (Discrete Surface Mount) Technology 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. They are more compact, more rugged, and they efficiently dissipate generated heat. Using them wherever appropriate al- lows the advantages
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RTP (Real Time Protection) NOMAD (NOn-Multiplying Advanced Decision) The Punch and Power amplifiers use an analog computer process to maximize safe output power under all operating conditions. Rock- ford 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 version of this technique ever used, bringing previously unavailable levels of accu
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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 Pass-Thru
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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 – Interchangeable end caps conceal the wiring and input cables, giving the amplifier a clean “stealth” look. 8 10 7 9 9 6 3 5 4 11 3 3. Speaker Terminals – The heavy duty, gold-plated terminal block connectors (+ and –)
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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. One of the internal XCards can be designated to the Pass-Thru, creating a dedicated low-pass, high-pass, or full range output. 9. Input Sensitivity Controls – The input level controls are pre
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INSTALLATION CONSIDERATIONS The following is a list of tools you will need for installing the Punch amplifier: Allen wrenches 7/64" & 3/32" (included) Voltmeter Wire strippers Battery post wrench Electric hand drill w/assorted bits Wire cutters Wire crimpers Assorted connectors This section focuses on some of the vehicle considerations for installing your new Punch amplifier. Checking your battery and present sound system, as well as pre-planning your system layout and best wiring routes will s
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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 condi- tions. 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
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BATTERY AND CHARGING Amplifiers will put an increased load on the vehicle's battery and charging system. We recommend checking your alternator and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo system. Stock electrical systems which are in good condition should be able to handle the extra load of any Rockford amplifier without problems, although battery and alternator life can be reduced slightly. To maximize the performance
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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 s
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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 loo
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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 (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. High-Pass Lo
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XCARD CONFIGURATIONS Configure a 12dB/octave filter for the Front channels. LED + L – +R– –L+ –R+ REM B+ GND Rear Front Front XCard HP 100Hz-20kHz 12dB/octave HP 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. LED +L– + R – –L+ – R + REM B+ GND Rear Front XCard Rear 1 LP XCard Front 20Hz-100Hz 12dB/octave LP XCard Rear 2 XCard Pass-Thru Full Range • Rear XCard 1 set to High-Pass or Low-Pass • Rear XCard 2
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Configure a 24dB/octave filter for the Rear channels. LED +L– + R – –L+ – R + REM B+ GND Rear Front XCard Rear 1 LP XCard Front 20Hz-100Hz 24dB/octave LP XCard Rear 2 XCard Pass-Thru LP • Rear XCards 1 & 2 set identically to High-Pass or Low-Pass Configure a 12dB/octave Bandpass filter for the Rear channels. LED +L– + R – –L+ –R+ REM B+ GND Rear Front XCard Rear 1 HP XCard Front 100Hz-275Hz 12dB/octave BP XCard Rear 2 XCard Pass-Thru LP • Rear XCard 1 inserted as High-Pass • Rear XCard 2 inser
