Miked, just went to Bell Canto site. The pre-1 is listed under products. It has a "loop" input which is a bypass loop. You can download a complete user manual from their site.
The BAT VK-3i has what they refer to as a "Unity Gain" circuit, which sets the volume at 0db gain, thus passing the signal thru at line level. I've been using mine for a little over a month, and although it seems a shame to burn the tubes for home theater use, is worthwhile for having the joys associated with a very musical preamp. Just my $0.02.
I purchased the PSE HLS-1 Preamp a month ago and a I am very happy with its performance. It has a bypass for HT, a contour control for bass and treble, and a remote control. I would suggest that you give it a listen. Good Luck.
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