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® ®
car audio
for
390 Watt Amplifier
5-channel w/crossovers
Installation Installation Installation and and and Operation Operation Operation
Installation Installation and and Operation Operation
fanatics
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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 craftsman- ship 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 produc
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TABLE OF CONTENTS Introduction ............................................................................................. 1 Accessory Pack ........................................................................................ 1 Technical Design Features ....................................................................... 1 5.3x Design Features ................................................................................ 5 Installation Considerations ...................................
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INTRODUCTION The RF 5.3x is a 5-channel amplifier with four stereo channels and a single bridged/mono channel for accommodating “single amplifier” system designs at a competitive price. Since this manual provides information on the features, installation and operation of the Rockford Fosgate 5.3x amplifier, we suggest you save it for future reference. We strongly recommend you have your Authorized Rockford Fosgate Dealer install your new Rockford Fosgate amplifier. If you do choose to install y
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u 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 r
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u 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 ass
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u High Level Inputs The high level inputs on the Rockford Fosgate amplifiers convert the speaker line outputs (high level) to preamp line inputs (low level). This allows amplifier compatibility with a variety of source units as well as the ability to integrate into factory systems without the need for external adapters. THE RESULT: Allows compatibility with factory and aftermarket source units. u XCard Crossover The 5.3x amplifiers utilize internal active crossovers. These cross- overs have many
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5.3X DESIGN FEATURES 2 Bias CAUTION! 9 Do Not Adjust Bias Bias CAUTION! Do Not Adjust 9 Bias Bias CAUTION! 9 Do Not Adjust Bias 6 8 1 7 3 4 5 – 5 – CAUTION! Any adjustment to the Bias controls may damage your amplifier and will void your warranty.
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1. Dual Extruded Heatsinks The dual extruded aluminum heatsinks of this RF amplifier dissipate heat generated by the amplifier's circuitry. 2. Power/Speaker Barrier Strip The barrier strip uses screw terminals that will accept #10 spade lugs or bare speaker and power wire sizes from 10-18 AWG. These gold-plated connectors are immune to corrosion that will cause signal degradation. 3. RCA Input Jacks The industry standard RCA jack provides an easy connection for signal level input. They are gold-
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INSTALLATION CONSIDERATIONS The following is a list of tools you will need for installing the amplifier: Wire Cutters #2 Phillips Screwdriver Wire Strippers Assorted wire connectors Wire Crimpers Battery Post Wrench Voltmeter Electric Hand Drill with assorted bits This section focuses on some of the vehicle considerations for installing your new amplifier. Checking your battery and present sound system, as well as pre-planning your system layout and best wiring routes will save installation tim
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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 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 up an
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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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Trim the power cable within 18" of the battery and Cut X strip 1/2" of insulation from the end of the wire. here Cut the wire loop that is attached to the fuseholder in half and splice the fuse into the power line using appropriate inline connectors. Use the section of cable that was trimmed earlier and connect it to the other end of the fuseholder. 4. Strip 1/2" 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
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a O d p e v r a a n USING PASSIVE CROSSOVERS t c i e o d n 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 netw
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a O d p e v r a a n t TABLE OF CROSSOVER COMPONENT VALUES c i e o d n C L 6 dB/Octave Low-Pass 6 dB/Octave High-Pass Freq. Speaker Impedance Hertz 2 OHMS 4 OHMS 8 OHMS L C L C L C 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
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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 ampli- fier. Firmly, but carefully, plug the card into the socket. High-Pass
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a O p d e v r a a n t c RESISTOR CHART i e o d n 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. Butterworth Alignment Q = .707 Butterworth Alignment Q = .707 1% resistors used with 0.047μF caps 1% resistors used with 0.022μF caps Frequency R1 R2 Frequency R1 R2 20Hz 169kΩ 169kΩ 20H
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XCARD ACCESS The internal XCard crossover(s) are accessible by removing the top cover from the amplifier. The XCard should be inserted with the filter side (HP, LP or FULL RANGE) facing the metal contacts inside the socket. Bias Bias Bias Bias CAUTION! CAUTION! Do Not Adjust Do Not Adjust High-Pass Low-Pass Full Range Rear XCard HP LP FULL Front XCard Subwoofer XCard Bias Bias CAUTION! Do Not Adjust • Remove six Allen Screws from cover with supplied Allen wrench (3/32") • Insert XCa
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USING THE SIGNAL SWITCHING NETWORK The Signal Switching Network allows the RCA input signals to be distributed to the outputs in many different configurations. The orientation of both switches configure the distribution pattern . The switches can be oriented in the following configurations. Configuration #1 (Mono Sub Input) Front inputs => Front outputs SUB XCard Rear inputs => Rear outputs FRONT XCard Subwoofer (L Mono) input => Subwoofer outputs REAR XCard Configuration #2 SUB XCard Front
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Configuration #4 (Mono Sub Input) Front inputs => Front & Rear outputs SUB XCard Subwoofer (L Mono) input => Subwoofer outputs FRONT XCard REAR XCard Configuration #5 Front inputs => Front & Rear outputs SUB XCard Subwoofer inputs => Subwoofer outputs FRONT XCard REAR XCard Configuration #6 SUB XCard Front inputs => Front, Rear & Subwoofer outputs FRONT XCard REAR XCard – 17 –
