A friend of mine recently switched from Blackhawk MK3 to Qualiton A50i. According to him, there is no comparison. The Qualiton is at an entirely different level. He claims that it’s one of the few tube amps under 10 grand that is driving his speakers (which are a rather difficult load) with aplomb. He actually, as in ’yes really, really’, owned the Blackhawk for about a year, so his opinion carries a lot of weight.
I had been contemplating replacing my Blackhawk with an SS amp like Naim Supernait 3 or Pass Labs INT-25 to drive my Harbeth M30.1s. But this guy is now making me reconsider tubes again. I’ve also heard that ARC is coming out with a new integrated soon. I will probably start a new thread on this topic to collect thoughts and opinions.