Response Line Level Control (Attenuator)

Converts your line signal output down to low-level via RCA stereo sockets. Fitted with a potentiometer for adjustable line setting (<1 volt).

This means you can safely install an audio source such as MP3 player or CD player to produce clearer, more balanced, and better quality sound.

The range of Attenuation is  -79dB~0dB and output Voltage is from 0 to your Input Voltage,