Usher R 1.5 power amp

I use them as mono blocks driving my Usher BE20 with great result.
Built like a tank, weight like a tank with tube warm sounding with lot of head room. Unfortunately, resale value is not good. People don't seem appreciate Usher gear value. I had 3 of them now sold them all for Carver 180 mono running KT120s. These tube amps match nicely with Diamond DMD tweeter of BE20
Best

My pairs have balance inputs but not connect internally (stock), that's upgrade option.
They're about 100 hours usage and I sold them for $2500, took a big lost
Cheers