Check out the HFT's offered by Synergistic Research.
https://highend-electronics.com/products/sr-hft-high-frequency-transformer
The HFT's are NOT subtle. Also, be sure to check out SR's Blue fuses ... and then treat all of your connections with Tim Mrock's Total Contact. Here's where to order:
https://www.audiogon.com/listings/lis8g7ac-perfect-path-technologies-total-contact-electrical-contac...
Frank