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bravomail
123
Nov 13, 2018
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Transformer based PSUs (in the link) sometimes do worse than impulse. I long thought otherwise, but transformers can underperform due to uneven wiring. For impulse PSU all you need is a big stabilizing capacitor on DC line. And proper grounding of jacks, board with the case.
Nov 13, 2018
FuckHead-Fi
373
Nov 13, 2018
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This amplifier has a SINAD of 117 dB, so nothing is ever going to sound better than this.
Nov 13, 2018
GUTB
230
Nov 14, 2018
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Switching PSUs are trash. They generally have much worse ripple, they radiate EMI, the cause lots of high frequency noise and they dump a load of AC current into device's power system. Even an el-cheapo linear supply which is going to be better. 99% of serious audio equipment uses linear power for a reason.
Nov 14, 2018
FuckHead-Fi
373
Nov 14, 2018
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Noise? Nope, no audible noise.
Nov 14, 2018
Voxata
75
Nov 14, 2018
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Trollololololololololol
Nov 14, 2018
AndyMok
34
Nov 14, 2018
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What if I'm telling you a lot of studio equipment uses switching PSUs lol?
Nov 14, 2018
GUTB
230
Nov 14, 2018
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Most studio equipment is garbage for people's bedroom "studios".
Nov 14, 2018
GUTB
230
Nov 14, 2018
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The noise is very audible and you would find that out if you switched out one of your power bricks with a linear PSU. They are cheap on AliExpress and eBay. Just read the brick's output voltage and amperage and then find the right size of LPSU . Have the seller set the right output voltage and done.
Nov 14, 2018
twoloszyn
1
Jul 14, 2019
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Does it matter that the power supply you’ve listed here outputs 2 A at 24 V rather than the 24V/1.8A power supply given by the manufacturer? Did you purchase the linked PS and can verify it works with the AAA 789? Thanks!
Jul 14, 2019
GUTB
230
Jul 17, 2019
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I can't personally attest to it but a +0.2A should be just fine. You can ask the seller to adjust it down to 1.8A assuming it has a tunable regulator capable of that. You can probably find one with the exact amperage if you searched around on AliExpress there's a million of them on there.
Jul 17, 2019
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