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LOC22 | 2 Channel Line-Output Converter

LOC24 | 4 Channel Line-Output Converter

Quick Start Guide

 Technical Support | 

Phone: 213-261-4161 | Email: [email protected]  | Diamond Audio | ©2021                                     

GAIN

Variable: -27.3dB — +3.2dB

Allows gain adjustment of

the output signal 

CLIP

Indicates signal clipping when 

gain is set to high

REMOTE

Remote Level Control Knob

for Rear Channels

RCA SIGNAL OUTPUTS

BOOST

Variable: 0dB — 12dB

When LPF is ON, provides 

Bass Boost (45Hz) for

Rear Channels 

LPF

Low Pass Filter 

Allows 250Hz low pass

filter for Rear Channels 

LOAD SELECT

Selectable: 20Ω / 60Ω / 20kΩ

Default: 20kΩ

For factory audio systems 

requiring a resistance load to 

output audio, select 60Ω first, 

then 20Ω. All others use 20kΩ

setting

SPEAKER SIGNAL INPUTS

Connect to head unit or 

X

FULLY OPEN TERMINALS

BEFORE INSERTING WIRE

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 

+12V Remote Output using 

DC Signal Sense from the 

Right channel inputs

GROUND ISOLATION

Selectable: GND / ISO / 200Ω

Default: ISO

If ground / engine noise is present, 

the jumper can be repositioned

Features & Wiring Information

The Diamond Audio LOC22 and LOC24 can be used to add amplifiers to an audio that does not have RCA outputs

or when replacing 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.

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