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zapco SEQ User Manual

Preamp - equalizer
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Model SEQ
Preamp - Equalizer
A.R.P.A. OF AMERICA CORP.
MADE IN MODESTO, CA U.S.A.

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Table of Contents
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  Summary of Contents for zapco SEQ

  • Page 1: Seq Wiring Diagram-Method

    Model SEQ Preamp - Equalizer A.R.P.A. OF AMERICA CORP. MADE IN MODESTO, CA U.S.A.
  • Page 2: Table Of Contents

    Contents Introduction Features Installation Instructions Connecting the SEQ Operation and Calibration Input Gain Control Mounting Method SEQ Wiring Diagram-Method 1 SEQ Wiring Diagram-Method 2 Help - Technical Assistance Manufacturing...
  • Page 3: Introduction

    Introduction Congratulations! You have just chosen the premium in car audio equipment. ZAPCO has well established its place as the technological leader in the car audio industry. Because of this, you can rest assured that you have the best car audio components in the world.
  • Page 4: Installation Instructions

    The cable supplied with your SEQ is comprised of seven wires. These seven wires are terminated on one end in a connector designed to be inserted into the back of the SEQ. The other wire ends have been left unterminated.
  • Page 5: Connecting The Seq

    ADDITIONAL GROUND CONNECTIONS: To ensure proper system grounding the following additional connections must be made. RCA Shields & SEQ case must be connected to case of source unit. RCA Shields - Signal Ground from amplifier inputs (connect wire from RCA Shields @ amplifier input to case of source unit)*...
  • Page 6: Operation And Calibration

    Operation and Calibration A. Input gain controls provide adjustable gain of 6dB to 26dB. B. Input clipping detector flashes whenever input signal is within +/- 1dB of clipping (super-bright LED). C. Volume control: high-quality conductive plastic potentiometer. D. Output clipping detector: indicates the onset of output clipping. E.
  • Page 7 If the input gain adjustment is set too high, the internal circuitry of the SEQ and/or system amplifiers may distort. There are two clipping indicators, one for input stage clipping and one for output clipping.
  • Page 8: Mounting Method

    1/4” socket-head screws and nylon shoulder washers. Once the equalizer is swiveled to the desired angle (the SEQ may be mounted with the bracket either above or below it) tighten the socket-head screws using a 3/16” allen wrench.
  • Page 11: Help - Technical Assistance

    Once we issue you a return authorization number, please write it in a highly visible area on the package. Zapco will not accept any packages that do not have a valid return authorization number clearly marked on the outside of the package.
  • Page 12: Manufacturing

    Manufacturing This product is designed and manufactured in the USA. The following operations are ENTIRELY performed in our Modesto, California plant. 1. PC Board insertion The components are inserted into American made printed circuit boards. 2. PC Soldering The printed circuit board assembly is wave soldered. 3.
  • Page 13 A.R.P.A. OF AMERICA CORP. 413 S. RIVERSIDE DRIVE, SUITE D MODESTO, CA 95354 (209) 577-4268 FAX (209) 577-8548 Rev. E 7/96...