I got my SU-10 today, bought one to play around with. I need to get XLR interconnects though for a proper comparison, the most noticeable change from the incumbent (a $10k+ product with a person's name) was how weak RCA output is on the SU-10. I have a Burson Soloist 3X GT, which is 10W of Class A and can usually get a Susvara to ear-splitting levels, but I needed 70% of Hi Gain to get them moving. Using them on DAC-only mode, fixed at -3.0db. The specs tell me the XLR should send a lot more juice to the power amp though.
Box feels like a cheap piece of crap and the 1.5" screen belongs in a 2001 Volkswagen Jetta, but no complaints on the sound and it's 90% cheaper than what I'm used to. Haven't played with colors or filters yet and will try a better A/B once I can get an XLR interconnect and have them both set up at the same time for reasonably quick switching.