Good Day Ladies and Gentlemen'

I am new to this site so... Hello Everyone.

I am posting this looking to tap into the vast knowledge I have been reading on this forum for awhile now.

I am looking for advice on my current setup.

I have mated two subwoofers to my bookshelf speakers. Each front channel consists of a Infinity Beta 20 bookshelf speaker that sits on a 11" custom riser (Cherry wood) and all this sits on a Infinity TSS750 sub. I have spent countless hours with my Rives test CD2 tweaking and optimizing them and got them sounding pretty good to my ears. The subs are fed from Denon AVR2500 using the Pre out/main in with a Y-connector. The sub crossover is set at ~100Hz.

I haven't yet implemented any spikes, isopads or bass traps yet. If anyone has any advice or comments I would appreciate them good or bad.

I listen primarily to blues, R&B and some classical and rock with music being the defining source for this setup.

Thank you in advance