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Legacy Car Audio LA638 manual

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Table of contents for the manual

  • Page 1

    W ARRANTY LEGACY SOUND CORP . warrants this unit to be free from defective material or workmanship and will repair or replace this unit or any part thereof if it proves defective in normal use or service within two (2) years from the date of original purchase. Our obligation under this warranty is limited to repairing or replacing, at our discretio[...]

  • Page 2

    specs Features and Specifications Congratulations • LED Light Bar with Hold or Scan • Soft turn on/off circuit • V ariable gain control • Remote turn on/off • Hi/low level inputs • Power on LED indicator • Fully adjustable electronic crossover network • Remote control Bass boost ( 0 – +18dB @ 60Hz ) • 2 ohm stereo stable • Bri[...]

  • Page 3

    LA638/838/1038 Features and Controls 3 LA438/538/738/938/1438/1838/2038 Features and Controls Protection LED Indicator The protection circuitry in the amp will disable it if it senses an input overload, speaker short circuit, or thermal overload conditions. Should this occur , the PROTECT LED will be illuminated. At that time, it is important that [...]

  • Page 4

    inputs Electrical Wiring and Installation Low Level Stereo Input Connection High Level Stereo Input Connection Input Connections Making Power Connections 1. Connect the +12V terminal directly to the car battery (+) terminal. 2. Connect the GROUND terminal directly to the car battery (-) terminal OR to a good clean, paint-free chassis ground point. [...]

  • Page 5

    Input Connections Low Level 4 CH Stereo Input from 2 CH Audio Source Low Level 4 CH Stereo Input from 4 CH Audio Source Left Output Right Output Input Connections Bridged Input Connection 4 CH Bridged Input from 2 CH Audio Source CH1+2 = Left Channel CH3+4 = Right Channel Left Output Right Output head unit Y adaptors to a second amplifier L + R Fro[...]

  • Page 6

    speakers Speaker Connections Basic Stereo Output Basic 4CH Output FRONT speakers REAR speakers L R RL LEFT speaker RIGHT speaker inputs Input Connections High Level 4 CH Stereo Input from 4CH Audio Source floating ground connection High Level 4 CH Stereo Input from 4CH Audio Source common ground connection wiring harness LR REAR FRONT LR orange bla[...]

  • Page 7

    High squeal noise from speakers. • This is almost always caused by a poorly-grounded RCA patch cord. Amplifier(s) gets very hot. • Check that the minimum speaker impedance for that model is correct. • Check for speaker shorts. • Check that there is good airflow around the amplifier . In some applications, an external cooling fan may be requ[...]