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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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Re: PSRR of 6172

Hi Ehien,

Like Thorsten says below, you should take care of both the SSM and PS rails. From experience, LC cell applied directly on DC regulated PS rails sound bad. For me, it removes all the music leaving only sound. I use choke with great effect only as RFI filter between rectifiers and transfo and as pre-regulator between main cap filter bank and DC regulator.

As for the SSM2017, I finally manage to get some feedback about them and they sucks. They are lean and very detailed in some ways, i.e, that kind of souless music that some audiophool crave about. Replacing it with any low-noise op-amp discussed here should remove that leaness. What you need to know, is if the gain will remain more of 5. Most of the time, it should be enough with most op-amp.

Regards,
Daniel Trudeau

P.S.: There's a new web site that inclued some mods on a CD player and explain some op-amps sound, as heard by the tweaker.

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