4 channel adjustable ISO to ISO amplifier interface.

Use to install a new radio in a car that has an original fit amplifier that takes a pre amplified audio feed.

This interface converts the high level audio output of a new head unit to a low level pre amplified signal which will work with an amplifier.
4 adjustable channels for optimum audio quality, it has a built in ground loop isolator and filters to get the best sound from the amplifier.

Active Plus adjustable 2 channel line out-put converter with 12volt amp turn on circuit .

Use for adding an amplifier to  standard speaker wires. (100W) max

Adjustable 2 channel line output converter with built in amplifier remote trigger.
Converts 2 channels of speaker level audio to 2 channels of line level audio.

Adjustable 2 channel line output converter with built in amplifier remote trigger.
Converts 2 channels of speaker level audio to 2 channels of line level audio.

Adjustable 4 channel line output converter with built in amplifier remote trigger.
Converts 4 channels of speaker level audio to 4 channels of line level audio.

Line output adapter for Volkswagen and Audi cars with quadlock connection on the original head unit.