BassBox has entire tab dedicated to acoustic response from 5hz up to 20k. BassBox lets you choose from a predicted T-S response' date=' driver sensitivity or a averaged band. In any case I always ask all my customers to leave a review good or bad so we will find out soon enough.[/quote']Here's the review http://www.caraudio.com/forums/che-ryman-custom-enclosures/610653-2-12-rockford-fosgate-p3-cherryman-custom-box-review.html