@blisshifi 

If I remember a conversation with Alberto correctly the Tempo is simply a stereo version of the Audion, probably with a common but beefier power supply. I have two of them to use as mono blocks that also bi-amp. 

If the Audion's and Tempo's are rolled off in the HF, I might now be able to hear it. I can't hear anything over 10k. But I think there was a model upgrade in the Audion at some point. Maybe wrong, but if so that might account for different perceptions.

I don't think Rick Shultz is modding GaN amps anymore. I had an LSA Voyager I was going to send to him, but he said he wasn't doing it any more. That was a year or two ago.

You might contact Alberto at AGD. He replies to emails to his site.

Aavik uses the Pascal modules. I currently have Hypex based Ncore NC400 monos with a BAT VK-40 preamp, I would like to upgrade to either the new Hypex Nilai 500 or the Aavik I-280. Very difficult to find comparisons. 

Technics Grand Class Integrated Amp

@markmuse Thanks for the details. 

@greg_f Thanks for the correction on Aavik. Are Pascal modules a GaN design or no? I didn’t think they were. They sound great regardless. 

@blisshifi No problems, the Pascal modules (UMAC) don't use GaN technology, one of their features that makes them different to Hypex, Pufiri, IcePower and the rest of the classD designs is that they use a sinusoidal waveform instead of the more widely used triangular waveform to produce the PWM so theoretically the output filter design is easier and should produce less RF noise. That's the theory.

You say they sound great, I have never heard any Aavik amplifier in real life, it will be very useful to know how they compare to a good AB integrated like the Gryphon, VItus, Pass Labs, T+A, etc. Any pointers?