What equipment should I invest in next?

I think I have a really good setup for my needs (see below). What should I get next to go with my setup for best sound bang for the buck? Am thinking of a PS Audio power regenerator or Townshend seismic platform for my speakers. Anything else o should consider? 
If it helps, I listen exclusively to classical and jazz. I’m a classical violinist, so I hear a bit differently. I want to hear the individual instruments, their separation, clarity and transparency of sound (no coloring of the recorded audio) and the details of the imaging.

Thanks!

Tannoy Kensington GR speakers
First Watt J2 amp
Pass xp 30 preamp
PS Audio Perfect wave DAC and SACD transport
Lumin T2 streamer
Clear audio concept turntable
EAR 834p phono stage
Morrow Audio speaker cables and interconnects