I'm not familiar with your speakers, but I have some power hungry Aerial 10t's. I found a very large improvement by going to multiple amps. First, 2 Classe SS amps at 300watts. Each amp was vertically wired so each served a channel. Now I'm using a pair of Rogue monoblocks on the mids and highs, and 1 Classe for the woofers. I doubt any of them ever struggle even at good volumes. But it is now quite possible to overplay my listening room. ( 21 x 15 x 8 ) Even after installing 6 floor to ceiling bass traps and various absorption panels in the first reflection points.
But since this is your living room more amps and treatments may not be possible for other obvious reasons.
But since this is your living room more amps and treatments may not be possible for other obvious reasons.