Musical Fidelity A100

Does the Musical Fidelity A100 actually operate Class A 99% as claimed, or does it operate AB like most other amps?
It's Class A all the way. Unit runs very, very hot despite the 2 fans inside it. Thise were the days when Musical Fidelity wasat their best. I did own one of these when I was still in school. Heard one recently and stillcan't get over how good it sounds.