I think he already has a subwell it says what sub amp you got so im listing my sub
I have an Original AudioQue HD 12 for sale. Great sub VERY LOUD. DD buildhouse. 180 shipped. great deal.
I would go that route if i was you and had 350 to spend. That amp is a little overratted but still a solid amp. Might as well get a new one and possible warrantyI have been lookin at the A3000DB, but the PA name puts me off...