look at this one from China, with tone controls and you can bypass them
https://www.ebay.com/itm/HiFi-6H8C-CV181-Vacuum-Tube-Preamp-Stereo-Home-Audio-Preamplifier-Tone-Cont...
2 outputs
https://www.ebay.com/itm/HiFi-6H8C-CV181-Vacuum-Tube-Preamp-Stereo-Home-Audio-Preamplifier-Tone-Cont...
2 outputs