Legacy LA 1870 - User Manual

LA370
LA470
LA570
LA670
LA770
LA870
LA970
LA1470
LA1870
LA2070
WARRANTY
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 discretion, the defective instrument
or any part thereof when it is returned, transportation prepaid to the Legacy Service Center at the address
below. This warranty will be considered void if the unit has been tampered with, improperly serviced, subjected
to abuse or misuse or if installed in a commercial vehicle. This warranty does not cover accidental damage.
When returning this unit for service, please include $15.00 for return postage and handling. Send your unit to:
LEGACY SERVICE CENTER
1600 63rd Street
Brooklyn, NY 11204
IMPORTANT: Pack carefully in original carton if possible. We are not
responsible for damage incurred in returning items for repair. A letter
stating your exact street address, daytime phone number, and the
problem you are experiencing should be included. You must also enclose
a copy of the original receipt as proof of date of purchase.
FOR YOUR PROTECTION
Completely and immediately mail the Product Registration Card
so that we may contact you directly in the event a safety
notification is issued in accordance with the 1972 Consumer
Product Safety Act, or for other reasons Legacy may deem
necessary.
TECHNICAL SUPPORT HOTLINE
Our technical department will gladly answer any questions
you may have about our products. They cannot, however
tell you the status of a repair, or handle other customer
service situations.
1-800-934-2277
Monday through Thursday, 9AM to 5PM
Friday 9AM to 2PM Eastern.
MANUFACTURER’S LIMITED TWO YEAR
CAR AMPLIFIER
HIGH SPEED
www.legacycaraudio.com

Summary

Manufacturer Warranty and Support

Manufacturers Limited Two Year Warranty

Details the terms and conditions for repairing or replacing defective units within two years.

Technical Support Hotline

Provides contact information for technical assistance regarding Legacy products.

Legacy Amplifier Specifications

Amplifier Features and Controls Overview

Speaker Terminals, Fuse, and Power Connections

Details speaker terminals, fuse protection, and power supply connections for various models.

Input Level and Crossover Adjustments

Covers input level, crossover mode, low pass, and high pass frequency controls.

Bass Boost, Input Options, and LEDs

Explains bass boost, high/low level inputs, remote connections, and LED indicators.

Electrical Wiring and Installation Guide

Power Connections and Grounding

Details connecting the power supply, ground, and remote turn-on for amplifiers.

Installation Precautions and Safety

Crucial advice for safe and proper amplifier installation, including airflow and wire protection.

Initial Setup and Level Adjustment

Guides on setting up the amplifier and matching input levels to the head unit.

Input Connection Diagrams

4-Channel Input Configurations

Illustrates low and high level stereo input connections for 4-channel amplifiers.

Audio Input and Speaker Output Connections

Bridged and Mono Input Connections

Diagrams for bridged input connections for 2-channel and 4-channel amplifiers.

Basic Stereo and 4-Channel Speaker Outputs

Illustrates basic stereo and 4-channel speaker output wiring configurations.

Speaker Connections and Troubleshooting

Bridged Mono and 2-Channel Mono Outputs

Diagrams for bridged mono output and 2-channel mono-bridged subwoofer outputs.

Troubleshooting Common Amplifier Issues

Provides solutions for power-up failures, hiss, engine noise, overheating, and distortion.

Legacy LA 1870 Specifications

General

Brand	Legacy
Model	LA 1870
Category	Car Amplifier
Language	English