Quick Start Guide

12V
Connect to a fused
+12V constant source
GND
Connect to a good
chassis ground
REM IN
Remote turn on input (+)
REM OUT
Remote turn on output (+)
The LPA will provide a
+9V Remote Output using
DC Signal Sense from the
Right channel inputs
SPEAKER SIGNAL INPUTS
Connect to head unit or
amplier speaker outputs
RCA SIGNAL OUTPUTS
Connect to amplier inputs
GROUND ISOLATION
Selectable: GND / ISO / 200Ω
Default: ISO
If ground / engine noise is present,
the jumper can be repositioned
GAIN
Variable: -28dB—+1dB
Allows gain adjustment of
the output signal
LPF
Low Pass Filter
Allows 250Hz low pass
filter for Rear Channels
BOOST
Variable: 0dB — 12dB
When LPF is ON, provides
Bass Boost (45Hz) for
Rear Channels
CLIP
Indicates signal clipping when
gain is set too high
REMOTE
Optional Remote Level Control
Knob (LPA-REM) for Rear
Channels. (See NOTES below)
LOAD SELECT
Selectable: 20Ω / 60Ω / 20kΩ
Default: 20kΩ
For factory audio systems requiring
a resistance load to output audio.
(See NOTES below)
LPA-2.2 | 2 Channel Line-Output Converter
LPA-2.4 | 4 Channel Line-Output Converter
The L.O.C.PRO ADVANCED™ can be used to add ampliers to an audio system that does not have RCA outputs or
when replacing an OEM radio and retaining the factory amplied system. Variable Gain Controls with Clipping Indicators,
Selectable Ground Isolation and Load Select features ensure a pure, noise-free signal for any type of audio system.
This Quick Start Guide will get you going, but if you need additional help or information, please visit our website or
contact Technical Support.
Features & Wiring Information
Quick Start Guide
X
FULLY OPEN TERMINALS
BEFORE INSERTING WIRE
JUMPERS CAN BE
TRIMMED FLUSH
REMOTE- It is always optimal to adjust the gain at the output side of the amplier, thus it’s recommended to use the Amplier’s
Remote Knob when available.
NOTES:
LOAD SELECT- Some late model Dodge/Chrysler/Jeep/Ram/Fiat vehicles require a load for the audio system to work properly:
20 Ω - Vehicles equipped with base audio system.
60 Ω - Vehicles equipped with premium amplied audio system.
20 kΩ - Default, for all other vehicle applications.
When changing the Load, turn vehicle off, change the Load and let vehicle sit for 5-10 minutes, then retry.