The way i see it:
- GaN is smaller, this is mainly why it was developed.
- It might run cooler, because of slightly higher efficiency than regular switching supplies and far higher switching frequency.
- It has no impact on fidelity.
- It costs more.
- If you buy it, your hifi buddies will say "Ohh, GaN! You must be from the future!"
- If i meet you i will say "Ohh boy, GaN, you must have money to burn."
So yes, there are benefits to GaN power supplies. I'll get a 100W USB GaN power supply for my backpack eventually, as it seems Thinkpads and every other mobile device uses USB-C now for charging. But i see no benefit for this particular application.
I personally would also advice against the shared 10A power supply for the mono blocks. Yes, today you will use them stacked on your desk with the Y-cable, but maybe not in a few years. Better get 5A to make sure they can be used meters apart.
I also don't see the benefit of a 10A power supply for a single V3 mono, as there are no measurements made by "our guys" that show a clear benefit. If there are benefits, they are at the very edge of performance for these chipamps, where i never will run them.
In summary:
- ignore GaN for this application
- 2x 5A is more flexible than 1x 10A
- 5A gives you the performance as it was measured by Amir
April 20th, 15:00 UTC.
Great video, i like the parts jumping around on their PCB
BTW, so far we haven't heard anything about cost. Saving 30% is nice and all, but what are we saving it on?