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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Experimenting with Power Supply Filter Caps. posted by Clayton Oxendine on July 8, 1999 at 20:48:53:
"Now what I want to know. Have I stumbled on to the difference between mid-fi and hi-end. Is it all in the power supply filters? "
You got it! Well maybe not all, but a good part of it is in the overall power supply design.I've modified (mods, not tweaks) a few CD players and a couple of pre amps and I've found that the power supply is one of the most important considerations. And improving the PS can often make stunning improvements in the sound.
I would guess that if merely adding capacitance to your units caused such dramatic differences then they had deficient supplies in the first place. Usually the same supply powers all the different parts of the unit [like in a receiver =;-) ] and that's where most of the problems are. It seems to me that the analog section of your CD player would have a separate bi-polar regulator on the supply board. Which part of the player is your mod affecting? Maybe you can do even more with that supply.
I like to give the part that handles the music its own power supply. I also make the PS with two regulator stages and use quality caps (Panasonic "Z" or "HF" series are excellent - and cheap too). So in a CD player I would break off the analog section from the main PS and give it its own, higher quality supply. It makes big differences. Output caps make big differences too. I just changed the output caps in two of my CDPs from polypropylenes to a combination of oil caps and polypropylenes - it opened up the sound stage quite a bit.
BTW, Is this the same Clayton that bit my head off when I said that power supplies are important to sound quality? Hmmmmmmmm?
Regards,
AWP
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Follow Ups
- Re: Experimenting with Power Supply Filter Caps. - AWP 11:12:54 07/09/99 (2)
- Re: Experimenting with Power Supply Filter Caps. - Clayton Oxendine 16:18:27 07/09/99 (1)
- Re: Experimenting with Power Supply Filter Caps. - AWP 14:34:29 07/11/99 (0)
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