AFAIK the TA2020 chip cant be tunred into a mono-block unless you just use one channel of one amp for each speaker.
I would be interesting in a Power amp version though, Really impressed with the Amptastic TA2020 with my 80dB Kolts.

The biggest problems I had when I borrowed Jerrys were the light being to bright and the unit being to small/lightweight as with the cables on the back pulling it backwards and lifting the front up. I stuck a Polished Agate Geode on top!
Maybe a slightly larger (Deeper) case with a little more weight might help.