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Many people tell that swap can get better punchy bass and clarity in the sojnd.. but I don't know.. I have the a07, but I I didn't replacement the Op-Amps yet.. but I would like.. The Audiophile sometimes is for diy and testigo to get the right sound for our ears. In the bt20s pro test.. most...

Hi friend . Thanks you for that awesome video.. could you test the opa1656, the opa 2210 super-β and the LM4562NA... and compare with the op249 and the ne5532 Please!!!

Hi friends.. one question: what's the audible difference between using the 48v 5a power supply vs. 24v 10A power supply.. if both of them have 240watts.. Please let me know..

Somebody notice that the bt30d pro on Bluetooth mode sounds very low compared to the rca input or its normal? how can I fix that? That remind me the A04 problem that was fixed removing 2 electric resistance to the board.

The existent bt30d pro users how can we proceed? Because since I got my bt30d pro version I always have the same question: Why this amplifier cannot accept and use an 48v power supply if it was equipped with dual 3255 chip amp. Just give us a solution.. thanks you in advanced.

I would like to know if the bt30d PRO can manage a 48v power supply, because the tb10d can and it use the same tpa3255 chip, Also I see in the @Fosi Audio web page that they are selling the 48v 5A power supply.. for tb10d and bt20A pro