Owner’s Manual SR Series Crossovers • SR 823 • SR 834 A Harman International Company
Warning For your protection, please read the following: Water and Moisture: Appliances should not be used near water (e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.) Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. These symbols are internationally accepted symbols that warn of potential hazards with electrical products.
SR Crossover SR823 / SR834 INTRODUCTION The DOD SR834 is a stereo 3-way, mono 4-way crossover, and the SR823 is a stereo 2-way, mono 3-way crossover. These high-quality crossover networks are designed to extract maximum sound quality from your multiamped sound system at a price working musicians can afford. Accurate 24dB/octave Linkwitz-Riley state-variable filters prevent peaks or dips in the output at crossover points, ensuring good driver protection by rolling off crossover frequencies rapidly.
2 SR Crossover INSTALLATION ** Be sure to begin installation with all AC power to your sound system turned off. Install the crossover in a rack using the provided rack screws and washers. Route the AC power cord away from audio lines and plug into a convenient outlet. Connect audio lines to the crossover using the appropriate input jacks to channels 1 and 2 (for stereo operation) or to channel 1 (for mono operation).
SR Crossover SETUP **CAUTION: DO NOT TURN ON THE POWER AMPLIFIERS YET. Consult your speaker and driver manufacturer's specifications for the recommended crossover frequencies. Basic setup procedures for the crossovers are as follows: • Label each power amplifier for its respective frequency band. SR834: LOW, MID, or HIGH for stereo operation; LOW, LOW-MID, HIGH-MID, or HIGH for mono operation. SR823: LOW, HIGH for stereo operation or LOW, MID, HIGH for mono operation.
4 SR Crossover • Connect the outputs of the crossover to the appropriate amplifiers. THE POWER AMPLIFIERS SHOULD STILL BE UNPOWERED. Check to see that all crossover level controls are set to -12, and that both gain controls are set to 0 dB. Apply power to the low frequency amplifier. • Send a broadband signal into the crossover and slowly bring up the LOW level control. Set the control for the desired level. The gain control can be used to boost the signal if needed.
SR Crossover MONO OPERATION Depress the Stereo/Mono switch** (LED indicator lit). When operating the crossover in mono mode, the HIGH-MID/HIGH frequency control range is from 800Hz - 9kHz. The mono mode setup procedure is the same as for stereo mode, except that the bottom row of markings on the front and rear panels will be followed instead of the top row.
6 SR Crossover SR823/834 SPECIFICATIONS CONFIGURATIONS: Stereo 2-way, Mono 3-way Stereo 3-way, Mono 4-way. FILTERS: Filter Type: Linkwitz-Riley state-variable Crossover Slopes: 24dB per octave Accuracy: 14% CROSSOVER FREQUENCIES Stereo: LOW/MID: 180Hz to 2kHz or 18Hz to 200Hz (selectable switch on rear panel) MID/HIGH: 450Hz to 5kHz Mono: LOW/LOW-MID: 180Hz to 2kHz or 18Hz to 200Hz (selectable switch on rear panel) LOW-MID/HIGH-MID: 450Hz to 5kHz in two ranges HIGH-MID/HIGH: 800Hz to 9kHz.
DECLARATION OF CONFORMITY Manufacturer’s Name: DOD Electronics Corporation Manufacturer’s Address: 8760 South Sandy Parkway Sandy, Utah 84070 declares that the products: Product Name: SR823, SR834 Product Options: All conform to the following product specifications: Safety: EN 60065 (1993) IEC63 (1985) with Amendments 1,2,3 EMC: EN 55013 (1990) EN 55020 (1991) Supplementary Information: The products herewith comply with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directiv
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