I listen ... wow ! anything .... I have a pair of Paradigm 9 SE MKII (tuned to 34hz)..... buy them used... look like new one ... not even a scratch! but need update on crossover ( after almost 25 years ...think its normal ) ...so I unbuilt all the 2 tower ...test all woofer ...put new ferrofluid in the tweeter and decide to Bi-amp them... I use two old school power amp ( all transistor) , one 110w ch for the woofer ... one 20w ch for tweeter , custom crossover, NO A/V receiver (even at 2-3k they can't beat a good old school 2.0 stereo amp) ... the sound is ..! wow ! ... evrething is there !