for preamp, I want full featured Tubes, and chose a Vintage McIntosh unit, MX110Z, had Audio Classics overhaul it for me, this is why I got one. If it dies, I get another, no fooling around.
https://positive-feedback.com/Issue77/vintage_mcintosh_experience.htm
I use a Chase Remote Line Controller to get remote volume, balance, and mute
You must have the remote, there are no controls on the unit. It is impossible for me and/or any of my friends to detect if it is IN or OUT via the tape monitor loop, it simply does it's job. Every once in a while, I shake my head, take it out, put it back in, it ain't there, but it is.

