PAC L.O.C.PRO ADVANCED LPA-E4 Quick Start Manual

Quick Start Guide
The L.O.C.PRO ADVANCED™ can be used to add amplifiers to an audio system that does not have RCA outputs or when
replacing an OEM radio and retaining the factory amplified 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.
Connect to a fused
+12V constant source
Connect to a good
chassis ground
Remote turn on input (+)
REM OUT
Remote turn on output (+)
The LPA will provide a
+12V Remote Output using
DC Signal Sense from the FL
and RL channel inputs
SPEAKER SIGNAL INPUTS
Connect to head unit or
amplifier speaker outputs
Use FL and FR for 2CH mode
FULLY OPEN TERMINALS
BEFORE INSERTING WIRE
X
LPA-E4 | 4 Channel Line-Output Converter
12V
TURN ON MODE
Selectable: DC / REM
Default: DC
Select DC if using speaker inputs
GND
for turn on, or REM if using REM IN
REM IN
INPUT MODE
Selectable: 2CH / 4CH
Set to 2CH if only using FL
and FR inputs. Set to 4CH
if using all inputs
GROUND ISOLATION
Selectable: GND / ISO / 200Ω
Default: ISO
If ground / engine noise is present,
the jumper can be repositioned
LOAD SELECT LPF
Selectable: 20Ω / 60Ω / 20KΩ Low Pass Filter
Default: 20KΩ
Allows 250Hz low pass
For factory audio systems filter for Rear Channels
requiring a resistance load to
output audio, select 60Ω first,
then 20Ω. All others use 20kΩ
setting
JUMPERS CAN BE
TRIMMED FLUSH
GAIN
Variable: -27.3dB — +3.2dB
Allows gain adjustment of
the output signal
CLIP
Indicates signal clipping when
gain is set to high
REMOTE
Optional Remote Level Control
Knob (LPA-REM) for Rear Channels
RCA SIGNAL OUTPUTS
Connect to amplifier inputs
BOOST
Variable: 0dB — 12dB
When LPF is ON, provides
Bass Boost (45Hz) for
Rear Channels