The Cary Audio Design SLP-05 preamp has a perfect HT Bypass. When switched to HT Bypass the incoming signal only travels through a couple relays and back out the jacks. So no active circuitry in the signal path. Just in one jack, through the relay and back out! And it’s an outstanding sounding preamp. Especially if you get one with the Ultimate Upgrade. Much more refined sound then the standard version and you can probably find a used one at a decent price.
