I went from a Don Sachs Kootenay and d2 to a Conrad Johnson Cav45 S2 to simplify things and am very happy. I borrowed my brother Primaluna HP Premium for a month or so and while okay it wasn’t for me. The Sachs did produce a lot of heat and find the CJ much less. The Sachs was a very nice amp but I preferred the EL34 vs the KT88. I also like being able to buy NOS tubes vs new production KT88 tubes which I find not so reliable.
The CJ responds to tube upgrade I’m using Mullard xf2’s and amprex 6922. I was really surprised the stock Mullard are very nice for stock tubes. The CAV45 is a very relaxed and musical amp but very good at detail retrieval and crystal clear. When I was going to choose a integrated amp it was between the Audio Hungary a20i but at the time there was no repair center in USA and for all I know may still be that way. The Jadis Orchestra was my other choice but ended up with the Conrad Johnson and find the CJ slogan “it just sound right” to be true in my situation.