Thanks for the warm welcome! Just last month, I became the happy owner of the PS Audio M700 amps and Gain Cell DAC/Preamp, and the Stellar gear have definitely opened up the sound of my system. They have also forced me to wade into the messy (and expensive) world of cable choices, and I'll be posting my thoughts on that issue on the PSA forum very soon. In cables, as well as in other audio components, I tend to look for gear that sounds the "best for the money" rather than the "best that unlimited money can buy."
At this point, I rarely use my turntable and focus instead on CD's and streaming digital audio via Sonos (using the DAC in my Stellar preamp). I haven't explored higher resolution formats much at all.
My musical tastes were shaped by the blues-rock (eg, Cream, Led Zep, Hendrix, Rolling Stones, etc.) and folk-rock and singer-songwriters of the 1960's and 1970's, including Joni Mitchell, James Taylor, Neil Young, Jackson Browne, Shawn Colvin, and others. I also listen to some classic blues and Motown.