Legacy Car Audio LA1838 user manual

Summary of the content on the page No. 1

MANUFACTURER’S LIMITED TWO YEAR
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
LA438
or any part thereof when it is returned, transportation prepaid to the Legacy Service

Summary of the content on the page No. 2

American Legacy Amplifier Features LA438/538/638/738/838/938/1038/1438/1838/2038 also feature: all amps feature: • LED Light Bar with Hold or Scan • Fully adjustable electronic crossover network • Soft turn on/off circuit • Remote control Bass boost ( 0 – +18dB @ 60Hz ) • Variable gain control • 2 ohm stereo stable • Remote turn on/off • Bridgeable into 4 ohms • Hi/low level inputs • MOSFET PWM power supplies • Power on LED indicator • LED protection indicator Congratulations on your purchase of

Summary of the content on the page No. 3

1 2 3 14 1 2 3 14 1 Speaker Terminals 1 Speaker Terminals These terminals are 14K Gold plated for high conductivity These terminals are 14K Gold plated for high conductivity and minimum impedance loss. The terminals face and minimum impedance loss. The terminals face upwards for easy wiring in tight situations. upwards for easy wiring in tight situations. 2 Fuse 2 Fuse Protects the amplifier as well as the automobile electrical Protects the amplifier as well as the automobile electrical system f

Summary of the content on the page No. 4

LA438 Making Power Connections Low Level Stereo Input Connection LA538 1. Connect the +12V terminal directly to the car battery (+) terminal. LA738 2. Connect the GROUND terminal directly to the car battery (-) terminal OR to a good clean, paint-free chassis ground point. LA938 3. To ensure a good ground, and to prevent “motor-boating” noise in the system, make an additional connection from the car battery LA1438 (-) terminal to the chassis of the stereo unit, using 12 gauge to remote turn-on mi

Summary of the content on the page No. 5

LA638 LA438 LA838 LA538 LA1038 LA738 4CH AMPS LA938 Low Level 4 CH Stereo Input Bridged Input Connection LA1438 from 2 CH Audio Source to a second LA1838 amplifier LA2038 head unit 2CH AMPS Left Output head unit Y adaptors Right Output Y adaptors 7 LA638 LA838 LA1038 4CH AMPS Low Level 4 CH Stereo Input 4 CH Bridged Input from 2 CH Audio Source from 4 CH Audio Source CH1+2 = Left Channel CH3+4 = Right Channel head unit L + R Front Outputs Left Output head unit L + R Rear Outputs Right Output Y a

Summary of the content on the page No. 6

LA638 LA438 LA838 LA538 LA1038 LA738 4CH AMPS wiring harness High Level 4 CH Stereo Input LA938 from 4CH Audio Source Basic Stereo Output LA1438 floating ground connection LA1838 head unit LA2038 2CH AMPS orange orange LR LR black black black black orange orange LEFT speaker RIGHT speaker REAR FRONT 9 LA638 LA838 LA1038 4CH AMPS High Level 4 CH Stereo Input from 4CH Audio Source Basic 4CH Output common ground connection head unit LRL R orange orange black black black black R L orange orange REAR

Summary of the content on the page No. 7

LA438 LA638 LA538 LA838 LA738 LA1038 4CH AMPS LA938 2 CH Stereo plus Mono-Bridged LA1438 Bridged Mono Output Subwoofer Output speakers LA1838 MINIMUM SPEAKER LA2038 L R IMPEDANCE MINIMUM Mono 2CH AMPS 4 OHMS! SPEAKER Subwoofer IMPEDANCE speaker 4 OHMS! Amplifier will not power up. • Check for good ground connection. • Check that remote DC terminal has at least +12v DC. • Check that there is battery power on the + terminal. STOP • Check all fuses. • Check that Protection LED is not lit. If it is