About a month ago I got a VTV Purifi 2 channel with tube buffer.....super solid amp and definitely massive value for the price. I found leaving it on all the time worked better than the trigger, as the trigger would always take about 5 seconds until volume came out. You can leave it on all the time though, barely gets Luke warm after 8 hours straight of use, nothing in standby. Overall way cleaner sound with low noise base compared to Emotiva or other brands around the same price. I was powering JTR Triple 8s (98db sensitivity) as well as Focal 91db speakers. Probably not the best amp for speakers with sensitivity in the mid 80s though. I'd recommend, Warren at VTV is super helpful and they offer 30 day in home trial.
My new VTV Audio Class D amp arrived today
I ordered the amp from Warren with the Purifi module and the Sparkos ss3602 op amp, the latter chosen for its somewhat more relaxed sonic presentation compared to the other op amps that VTV offers. Right out of the box, it strikes me as quite musical, without any noticeable harshness, although few inner details of the music are so far revealed. It is dead quiet, as expected. So with my initial favorable impressions, I will report back after it has 100 hours of run-in to comment on its SQ.