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