I am sure someone will chime in now that I have altered your title to include ZMA. There aren't very many TORII MONO owner's around compared to all of our other amplifiers due to the jump in price. Plus most of them aren't on the forum - perhaps too busy listening to their speakers?
I did some videos on YouTube of the TORII MONO's driving both types of speakers; wide-range crossover-less Tube Tots around 93dB and our Scanspeak Reference speakers around 86dB. It can give you a sense of the amplifiers.
Our Channel:
https://www.youtube.com/channel/UCRj2qPuQz6zocI19iUtnU3wOne of the Videos:
https://youtu.be/rXBk0x0p6no