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

Did you A/B the speakers in your setup?

If not, start with experiments with the speaker stands, locations, and room treatments. If these are not optimized, you will not know what results you have achieved with other tweaks, and you can actually make things worse for when you do optimize the setup.

Next thing to look at would be amp support. All tube amps are microphonic to some extent, and it is important to minimize the vibration that gets to the tubes themselves. Same warning applies here, also.

Michael Percy Audio carries high-quality components at reasonable prices. You need to download his catalog and order by mail, but he is quick to respond most of the time.

In the Bay Area, Halted Specialties (HSC Electronics) carries a lot of surplus parts at very low prices. I visit the Rohnert Park store often and have found some amazing bargains there.

You can use capacitors with higher voltage ratings without risk, but it seems premature to start swapping parts in the amps. I would look at the rectifier bridges first, and upgrade to HexFRED or similar diodes if the bridges are conventional p-n junction diodes. These are noisy and affect other components in your system. The noise may affect sound-stage and imaging performance, as RF noise in general limits sound-stage depth in most systems.


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