Preamps w/HT BYPASS that works when preamp is OFF.


I have spent quite a bit of time researching this issue here and on other fora. I have been looking for a thread that lists the stereo preamplifiers that have home theater (or "cinema," as some manufacturers call it) bypass that works while the preamp is turned off. I think this list would be very helpful to those who have hybrid systems, which seems to be the majority of audiophiles.

I will start the list with those that I know operate this way, either through personal use or through research on the internet. Please feel free to add to the list, but please limit your contributions to the preamps that meet the criteria above. I will break down the list into two parts: Preamps that have XLR HT bypass input and preamps that have RCA HT bypass input only. Please indicate next to the model listed whether it is tube or solid state, fully-balanced or not.

PREAMPS WITH XLR HT BYPASS INPUTS:
Cary SLP-05 (tube, fully-balanced)
Cary SLP-2002 (tube, fully-balanced)
Modwright LS 36.5 (tube, fully-balanced)

PREAMPS WITH RCA HT BYPASS INPUTS:
Supratek Chenin (tube)
Supratek Chardonnay (tube)
Rogue Perseus (tube)
Gill Audio Alana (tube) [HT Bypass available by request]
Aesthetix Janus (tube, fully balanced)
Aesthetix Calypso (tube, fully balanced)

If you know through personal experience that any of this information is incorrect, please feel free to suggest corrections.
asindc
Kennyt:

I will add another reason for wanting to leave the preamp off. The only reason I have a hybrid system is because I don't have the space for separate systems (I would imagine that is the primary reason why most do not). I prefer to think of them as two separate systems occupying the same room, with the only thing in common between them is the utilization of the amp(s) and speakers. In addition to the reasons stated above, I see no reason why I should have to turn on the preamp to bypass it, especially when it is not necessary.
The TAD 150 Signature has RCA HT bypass - work with the preamp off (or on, though I can't imagine why anyone would want to leave it on).
Updated list:

PREAMPS WITH XLR HT BYPASS INPUTS:
Cary SLP-05 (tube, fully-balanced)
Cary SLP-2002 (tube, fully-balanced)

PREAMPS WITH RCA HT BYPASS INPUTS:
Modwright LS 36.5 (tube, fully-balanced)
Supratek Chenin (tube)
Supratek Chardonnay (tube)
Rogue Perseus (tube)
Gill Audio Alana (tube) [HT Bypass available by request]
Aesthetix Janus (tube, fully balanced)
Aesthetix Calypso (tube, fully balanced)
Cary SLP-98, F1 version (tube)
Dodd Battery Powered Preamp
TAD 150 Signature
The VAC Standard PreAmp LE I had had HT passthrough and worked when powered off.
You can only these used now but it was a great PreAmp.