Yes, same setup, LRS-350-36 bumped to 38V.
Cosmos ADCiso and DL200 used the same laptop without USB isolator on the DL200, So, I will try again some other time with separate laptops, might fix the mains harmonics when using the Cosmos APU.
No stats yet since were using the Cosmos ADC as unbuffered, i.e. directly connected to a passive low pass filter after the DUT's speaker out. There's no protection to transient and large voltage swings. So, we can only measure the amp at 4.5Vrms output (with 4R load). And the passive LPF has a...
Here's with LPF straight to Cosmos ADCiso.
Setup is SMSL DL200 -> FB100 -> LPF without output coupling caps -> Cosmos ADCiso
Can't get lower noise measurements, though the module already has lower noise than my sample PA5 here. So, I believe I can get better noise measurements. It's just some...
Cosmos measurement is not yet ready. Getting mains harmonics when LPF is added on the class-D output with the cosmos APU.
Using LPF on this site: https://www.openaudiolab.com/measuring-amps/
Still figuring out the correct wiring to eliminate the mains harmonics.
I ordered Cosmos scaler, will...
We will revive the production of D100 configured as non-PFFB, since there are some people who still prefers non-PFFB configuration for TPA325x.
Sample feedback below.