The Q control won't gain you punch, but the variable tuning might. It's no longer on a discount price though. If you really want mid bass punch, look at the Premier Acoustics PA-150. It won't have the deep bass performance of the VTF2 or PB1000, but its mid and upper bass output are far beyond those subs capability. The Dayton Titanic 4 should do great as well, but it still won't match the PA-150 for upper bass performance.