Chaps,
To hopefully answer some of the questions asked.
The SonicT is a stereo digital amp producing around 10w/channel.
The standard unit has a single input with a pair of cheapy outputs on the back and a volume control (not remote).
I've heard Zanash's reboxed SonicTs running as mono block power amps, which he believes sounds on par with his Quad power amp.
To mono-block them, Zanash has put one channel into a bridged input, and then run his treble drivers from one channel, with the bass run by the other. Zanash has put loads up in the DIY section about how to do this, and when visiting him, it appeared to be a fairly straightforward process.
Modding them doesn't look too difficult, but personally I'm simply not that confident in my abilities to do the job. From what I can see opportunities existing in replacing some of the caps, bypassing the cheapy volume control and using a decent power supply.
Clearly the above does work, as the units running with Zanash's MLs do the job rather well.
I have tried a single unit at home. Unfortunately they don't appear to be a good match with my Kabers, which are far less efficient than the MLs, and my Naim pre-power combo easily outperforms it, but then so it should, costing roughly 100 times the amount.
I'm not sure where to rate their ability. As standard, mid range is really good, bass not so great (with my Kabers). Probably at least a match for a budget integrated, and at the price a steal.
With some not too expensive modding, there's clearly much more potential.
If you have any other questions, please ask here or PM me.