Ypsilon PST 100 Line Preamplifier. Current model is $37,000
Selectable Passive or active mode. remote control. Those who know about this preamp consider it to be one of the most neutral sounding preamps on the market today.
Here is a link to Michael Fremers review: https://www.stereophile.com/content/ypsilon-pst-100-mkii-line-preamplifier
member since November 2003