the epic 160 has the bass restoration and the bass knob is on the unit which you mount the unit in the dash or some where in the cabin go to audiocontrol.com
I had an epicenter in an install in the late 80's and if I could have it in dash it would be even better....My new install will incluse the 160. I am planning to use my RF PA-1 Preamp mounted just above it so I can have the extra control and tweek-ability at arms reach. Audio Control has had excellent products for car and home since the 1980's...I'm AC for life!