hifi engine

I have two Bose 502 BP Bass speakers - need help

I cannot get the "pounding" bass out of my Bose 502 BP speakers like I did before my Marshal amp died. I have tried my Mackie FR-2500 (even "bridged" it). I tried my Denon POA-2200 and it sounds better than the Mackie. However, I do not get that upright BASS GUITAR "roll" Or the BASS drum "thump which I used to get with my Marshal Bass head, any suggestions? I would like some input as to what I should buy so the crowd can "feel" (you know that chest thumping bass) the bass the Bose "beauties" used to put out using the Marshal amp. Thank you for ANY help Tim C.