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RE: TU-882R Headphone Amp - Possible Mods

I know very little about electrolytic caps as I rarely use them.
I've tried Black Gates in the past and I'm not convinced even though many people rave about them. From what people say, Panasonic are worth trying. As for ED or EE, check the data; 105 deg C is good, and you want minimum series resistance and maximum rated ripple current (the two tend to go together); also look them up on Tube DIY Asylum.

As for capacitance value ... I can't help as I have no experience of regulated supplies as used here, or of RC dropper stages. I do know that too much capacitance can be harmful; it can sometimes give a 'slow' sound and mess up leading edges. My unit has a fast, clean, engaging sound with fine clean leading edges so myself, I'm leaving the values as is.
My unit is very quiet so I see no need to increase the capacitance.

It's worth seeing what other people have done and try things out yourself carefully, just be aware more capacitance may not be an improvement.

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