Eyediver,
WOW! Lot's of varied and good suggestions. I had an old Scott amp long ago and will confirm, as other have noted, that a Conrad Johnson MV-55 I had 15 years ago reminds me of the Scott and the MV-55 is still one of those amps that just makes "music". Not the last word in bass slamm or linearity but that's not what you are looking for anyway. It had much of the same sound you seem to be looking for with a few of the traits you like about the Onix or Cayin and you can tube roll to customize the sound further to your liking.
Just my $.02
WOW! Lot's of varied and good suggestions. I had an old Scott amp long ago and will confirm, as other have noted, that a Conrad Johnson MV-55 I had 15 years ago reminds me of the Scott and the MV-55 is still one of those amps that just makes "music". Not the last word in bass slamm or linearity but that's not what you are looking for anyway. It had much of the same sound you seem to be looking for with a few of the traits you like about the Onix or Cayin and you can tube roll to customize the sound further to your liking.
Just my $.02