All tubes run really hot, the more power the more heat dissipation. I love Border Patrol with Harbeths but that is a lot of tubes.
You could consider a hybrid amp? Tube for gain stage but SS output. That will run cooler (rogue sphinx for sale here). Class A amps are hot too.
You could consider a hybrid amp? Tube for gain stage but SS output. That will run cooler (rogue sphinx for sale here). Class A amps are hot too.