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Posts: 1014
Location: PNW (summers) and Southern AZ (winters)
Joined: December 2, 2006
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Hey There Awe-D! Glad you're healing up and getting better. Very good to hear. All the best to you and yours. Off-topic question regarding the implementation of Al Sekela's great AC filter tweak. You said the PRPs sound 'strident'. Yet I saw in your previously posted instructions/photos that you used the 1/2W PRPs in the AC filters you made, as did Al, when he was alive. Many years ago, at the personal urging of Al Sekela, I followed the exact recipe that Al and you offer, using the prescribed value Wimas and 1/2 W PRPs. I found the filters to sound just a touch....'strident'. Effective in cleaning up AC noise? Yes! Very much so. But just a tad strident in my system. (Thus, I ultimately opted for Alan Maher's Power Enhancer V/VI series, which used no resistors, and employed many more capacitors, all Vishay, btw.) Recently, though, I returned to thinking I want to go back and try yours/Al's design again, but with better sounding resistors. I believe Al's design imparts more stability with the resistors in there, and take much less time to 'dial in' (Maher's devices take around 2 or 3 weeks to stabilize and dial in, sounding pretty horrid until then.) Would you now recommend another type of resistor, and if so, what type/value/rating? Or would you simply move up to the 1 watt size PRPs (which I have read is less prone to the stridency of the 1/2W and the 1/4W PRPs, and also sounds more weighty and 3D)? I was going to remove the 1/2W PRPs and go with the 1W PRPs, but figured I'd ask you your opinion before doing so. Your new comment herein prompted me to finally write and ask. (Thanks!) Any guidance is appreciated. TIA! Cheers, WS
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