Unlike other so called top subs on this forum, you do not see this low pounding sub listed often on the used market. Owners rarely give them up. But...I have moved into a new home and am selling my all black ACI Maestro sub and amp or keeping it in storage. It is in absolute mint condition and goes low and strong. It is less than 18 months old. For details about the sub and amp please see this review with graphs: http://www.audioc.com/speakers1/mae.../craigchase.htm If anyone is interested in purchasing my Maestro and amp for $1410 plus shipping please PM me. CASH OR PAYPAL ONLY! Please only contact me if you are serious this week about my price or an offer. I have a lot of household items I am selling/packing so my time is limited.