Specification:

Color:Black?
Material: Copper wire
Size:2.2*2.0*1.0 inch?
Interface: 2*RCA Output; 2*RCA Input?
Cable length: 7.5inch

Features:

If your subwoofer amp does not have a remote bass knob...

If there didn't have space to put an eq but you wanted to turn the bass up and down or off...

so you can connected this item between the head unit and the amp, and you can adjust bass easily, cleaner sound to attenuate the signal before the amp.?

Just install this knob, you can control the amount of bass with a turn of the knob instead of going through the radio every time.

Remote bass level control turning knob, great accessory for car and home subwoofers, work well for your spl amp/PPI amp...,?balance desktop speaker system, great for stereo that does not have a bass tuner. There are some songs had too much bass for sub and some didn't have enough.

Package Include:

1*Car Audio Amplifier
2* Mounting screws