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manual abstract
Power Supply Terminals Input Level Control Use this control to match the output of the head unit to the amplifier. If distortion is present, reduce the setting of this control. Phase Shift Switch Allows you to change the phase of your subwoofer from 0 degree to 180 degrees to help compensate from timing difference between drivers. High Pass Subsonic Filter Adjustable from 15Hz to 40Hz with a slope of 24dB per octave.This allows for the attenuation of frequencies that are mostly inaudible and cause unnecessary strain on the amplifier. Crossover Low Pass Filter Adjustable from 20Hz to 250Hz with a slope of 24dB per octave.This allows for the adjustment of the upper point of the frequency bandwidth and the respective subwoofer. Low Level Input (High Impedance) This unit is provided with gold-plated RCA input jacks. Using RCA-RCA type patch cords, connect these inputs to the RCA outputs from your head unit. 5 Low Level Output (High Impedance) This unit is provided with gold-plated RCA Output jacks. Using RCA-RCA type patch cords, connect these Outputs to the RCA Inputs for your anyther amplifier. 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 you check to determine what has caused the protection circuitry to become activated. If the amp shut off because of a thermal overload, allow it to cool down before attempting to restart. If the shutdown occured because of an input overload, or speaker short circuit, be sure to correct these conditions before attempting to restart the amp. To reset the amp, turn the REMOTE power off and on again. Power LED Indicator This LED is illuminated when the REMOTE ON system is turned on. Remote Bass Boost Plug in the Remote Bass Boost Control wire in here. LA-678/878 Features and Controls LA-2478 Features and Controls LA-478 Low Level Stereo Input Connection LA-578 Making Power Connections LA-778 1. Connect the +12V terminal directly to the car battery (+) terminal. LA-978 2. Connect the GROUND terminal directly to the car battery (-) terminal OR to a good clean, paint-free chassis ground point. LA-1478 3. To ensure a good ground, and to prevent “motor-boating” noise in the system, make an additional connection from the car battery (-) terminal to the chassis of the stereo unit, using 12 gauge minimum wire. to remote LA-1878 turn-on 4. Connect the REMOTE terminal to an external switch for positive 12V Electrical Connections +12V LA-2078 12V battery turnon-off. This may be connected to the head unit power antenna lead. head unit (all models) head unit LA-2278 2CH AMPS Installation Precautions L/R audio outputs This amplifier comes complete with all mounting harware required. Please remember that this is a high-power unit, which generates considerable electrical energy and heat. Therefore, be sure to install the unit i...
Other models in this manual:Car Amplifiers - LA-1478 (665.44 kb)
Car Amplifiers - LA-1878 (665.44 kb)
Car Amplifiers - LA-2078 (665.44 kb)
Car Amplifiers - LA-2278 (665.44 kb)