A big advantage of Class A amps is that by the standards of any AB amp they have a hugely overbuilt power supply and they can drive low impedance loads without faltering.
One of my systems has a pair of Class A monoblocs that put out 45 watts a channel in stereo configuration, but 500 watts bridged into a 1 ohm load. Hard for AB amps to match that. They are also large and heavy, if that matters to you - mine are over 100 lbs. each.
If you don't run difficult loads, then the choice comes down to sound vs. power usage and heat production. I really like the sound and still own 4 Class A amps, but I use an AB tube amp to run my main system which has quite efficient speakers.(92dB)
One of my systems has a pair of Class A monoblocs that put out 45 watts a channel in stereo configuration, but 500 watts bridged into a 1 ohm load. Hard for AB amps to match that. They are also large and heavy, if that matters to you - mine are over 100 lbs. each.
If you don't run difficult loads, then the choice comes down to sound vs. power usage and heat production. I really like the sound and still own 4 Class A amps, but I use an AB tube amp to run my main system which has quite efficient speakers.(92dB)