Sonics 800X

Looking to upgrade my amplifier (currently have an Hafler DH-200 in Stereo mode). Within the last year I purchased (used) an Bryston 2B preamp to replace my Carver c-3. I am very, VERY pleased with the preamp swap and it is highlghting some shortcomings in the Hafler (I suspect due to age). I would love to take the Hafler in and get it cleaned up/recapped weak solder joints checked, etc. An estimate for that came in at about $500.00. Having heard that, it makes me wonder if maybe now is the time to replace the Hafler (purchased brand new back in 1980).
I have been considering upgrading to a Bryston 4B (250 W RMS vs 100 W RMS for the Hafler) which would be a wash in terms of output power. In my search, I have seen an amplifier with the badging of Sonics 800X which may/may not b built by Bryston? The drawback being the Sonics uses XLR inputs instead of RCA plugs.

Can anyone offer any further information on Sonics amplifiers? Thanks!