Have to actually agree with Millercarbon (for once) about isolating speakers. I have B&W 805 D3 speakers, recently placed on IsoAcoustic Gaii's. Transformative sound. In fact the single biggest improvement made so far in my system.
upgrades
at 68years old Audio fever is on the rise again my 1990 system in part in need of a up grade Starting with mp PLINIUS 16 PreAmp with a great phono stage Is being Replaced with a NAT Symmetrical Balanced Tube PreAmp Any Thoughts @nd up Grade Thiel 3.6 Speakers for a pair of B & W805-D3 Due To smaller living space Driven By a KRELL KSA 150 powerAmp can get some Advise