whatever you do….run new parts in before passing judgement….
This is a very good point. I have been running the Kt-150 based Muzishare X10 for a few days now. Maybe still only 20-30 hours on it since delivery. But the soundstage is really opening up. Much more height and depth. Even though the amp did sound really good straight out of the box.
But for the Willsenton R300 I can see the coupling caps are of a cheaper kind so no problem swapping them without running the amp in more. Yes I will certainly run in the new caps for a while and report back on any improvement. I was able to source a set of the 3 needed Mundorf Supreme silver gold oil 1000VDC caps for only $100 total. But I am also going to order some of the other brands the folks here recommend to try them out and compare.
Thanks.