Does what it's supposed to. Level Control.
Clarion specifically says its a level control, and that's exactly what it is. This is not a boost control. Read any of the official clarion amp application guides and you will see its a level control. Clarion amps have a boost on the amp only, the cable does not effect the boost. With that said, it does exactly what it's supposed to. Changes the output level. The potentiometer has a nice sturdy feel to it and is easy to use. Easy to install as well, cable is easily long enough for almost any install. I've been using it for a few years. First with a DPX1800 and now with a DPX11551. I never use boost, so i wouldn't own this thing if that's what it did. If you need a level control for your clarion amps, this is the device for you.