Hey guys, go easy on @Paradigm5h1f7. It is a common mistake to assume that the AHB2 is class-D. The small size and high efficiency imply a class-D topology. The switch-mode AC/DC power supply adds to the confusion.You talking nonsense @Paradigm5h1f7 and you know nothing about amplifiers. Not so surprising due to mass presence of unqualified posters here.
The AHB2 is a very unusual amplifier and it takes some time to wrap your head around what is happening inside. Some of the technology is disclosed in the THX patents, but there are additional features that we consider proprietary.
For those of you who are very familiar with the inner workings of amplifiers, it may surprise you that the AHB2 has no bias adjustment, nor does it need one. Due to some proprietary circuitry, THD does not change with temperature or loading. Furthermore, there is not a single trimmer or adjustment in the entire amplifier. This means that the performance is not determined by the accuracy of the trim adjustments nor is it impacted by the drift in these adjustments over time and over temperature.