I'm not sure I drive the car enough to justify putting one in to be honest. But from the start of next year it will be my only car so I may be tempted.Yes, the headunit has sub controls and the 'sub' also has some adjustment. It does ok, but you can tell the sound is coming from the passenger side, I did toy with the idea of 2 of them if your passing my way or I am near you can have a listen if your not buying on very soon