Here i review heart rhythm valve amp (9watts per channel)
And compare and contrast sound with transistor amps from my collection.
Using Arcam alpha cd player .
Sansui sr22 with ortophon blue cartridge.
Transistor power amp naim nap 100
Also sansui au 317 integrated
Sansui au 317 pre amp
meridian 101 pre amp
And Rotel RC-9708X pre amp.