The Krell FPB amps are class A to their full rated power. The sustained plateau bias helps to prevent (through magic and witchcraft) the amp from running as hot as Class A amps have in the past.
It is true that Krell amps before the FPB series were only class A for the first 25 or so watts, which is where most of our listening is done anyway. The Krell monoblocks are very expensive, but I think they are worth it. The Pass Labs X 600 are a great pair of monoblocks, and as mentioned previously will only cost about half the price of the Krell.
In my limited experience Class A amps sound better than class AB or those wretched digital amps. They are more 'there.' So yes, along with the drawbacks there are many real advantages.
...and dats da name ah dat tune!
It is true that Krell amps before the FPB series were only class A for the first 25 or so watts, which is where most of our listening is done anyway. The Krell monoblocks are very expensive, but I think they are worth it. The Pass Labs X 600 are a great pair of monoblocks, and as mentioned previously will only cost about half the price of the Krell.
In my limited experience Class A amps sound better than class AB or those wretched digital amps. They are more 'there.' So yes, along with the drawbacks there are many real advantages.
...and dats da name ah dat tune!