Who offers full remote functions in a tube pre

I would look for a used SF Line1, 2, or 3, all of which fit your description with one exception: remote switchs preamp in/out of standby rather than complete power on/off.

Sonic Frontiers Line 1 or 2. They have highly functional remotes (round aluminum puck), but I'm not sure about power on/off.

Audio Research

BAT Balanced Audio

Dont overlook Melos..some of their preamps have remote function.

Conrad Johnson. All functions except remote on/off.

I agree with the Sonic Frontiers Line Series pre-amps. They have the most complete and highest quality remotes I've ever seen in high end pre-amps. The remote does not turn the pre-amp off, but puts it into standby. I own and love the Line 1 for my hodge-podge HT system, and use the Line 2SE in my main 2 channel stereo system. They're great, and either is available for under $2K. Cheers. Craig

Golden Tube Audio SEP-2 or SEP-3 meets the requirement.
http://cgi.audiogon.com/cgi-bin/cl.pl?preatube&1048354160&2&3&4&

Audio Research LS15 - can be had used for less than $1500.