Some great tube amps have some disadvantages for recording or bedroom playing:
-high gain noise
-hum
-fan noise
-sound only great if cranked
-no master volume (= very loud)
Don't be afraid to profile them!
Some of the great KPA profiling features are:
- the noise of the profiles is (in most cases) highly reduced (compared to the real thing)
- hum and fan noise will not be captures
- in the KPA has each amp a master volume