WANTED: HIGH QUALITY 4uF 100V+ caps

[Stuart Polansky]

Have tweeters that are a bit edgy, using basic Dayton metalized PP caps. Thinking that better caps might tame them a bit. Could get by with only two, but would like 4:

PPFX
Mundorf
Auricap
Sonicap
Jensen
Jupiter
V-Cap OIMP
whatever.......

[Pelliott321]

I have had good luck with PIO's off of ebay
The usual naysayers will be ignored

[Stuart Polansky]

Which PIO caps? The Russian k40Y9 type?

Stuart

[Pelliott321]

I have gotten a few. The Russian's seem fine and reasonable. Also motor run caps have a large following
But full disclosure my personal opinion that boutique caps are bogus.

[Stuart Polansky]

I have gotten a few. The Russian's seem fine and reasonable. Also motor run caps have a large following
But full disclosure my personal opinion that boutique caps are bogus.

Thanks. Maybe I'll just use some NP Nichicons. Probably I'm imagining any differences.

Kidding! Sorry, I'm in the other camp. Sadly, I hear differences, lots of them. Bad for my wallet!

Stuart

[Pelliott321]

I hear differences also, but have decided its not worth it. I like to get rid of the stress

[Stuart Polansky]

I hear differences also, but have decided its not worth it. I like to get rid of the stress

I don't blame you one little bit!!!!

Keeps lots more $$$ in your piggy bank for other projects!

More hair on your head also!

It's just that feeling of running sheetrock screws into my ears that makes me keep trying! I listen for detail, soundstage, microdynamics, etc., so revealing tweeters do it for me. Unfortunately, that's a double edged sword demanding fine components upstream!

Stuart

[SoundMods]

I have a cache of 5-ufd/350-wvdc Electronics Concepts caps that in my experience surpass any of the so-called audio-phile caps. Their self-resonance is out beyond 250-kHz.

I can provide you with matched pairs. At 8-ohms the difference in the -3-db crossover point is only 750-Hz. (4,750-Hz -- 4-ufd vs. 4,000-Hz -- 5-ufd).

I can even sort for the lowest values within tolerance to get you closer if you like -- although I found that some overlap works best.

[tomp]

A blast from the past. I have two 8uf 200V Wonder Caps if you are interested.

Tom

[Stuart Polansky]

I have a cache of 5-ufd/350-wvdc Electronics Concepts caps that in my experience surpass any of the so-called audio-phile caps. Their self-resonance is out beyond 250-kHz.

I can provide you with matched pairs. At 8-ohms the difference in the -3-db crossover point is only 750-Hz. (4,750-Hz -- 4-ufd vs. 4,000-Hz -- 5-ufd).

I can even sort for the lowest values within tolerance to get you closer if you like -- although I found that some overlap works best.

I wouldn't mind auditioning a pair, if you're amenable. If I like them I'd buy them, if the price is right.....

BTW, I'm using 2nd order Butterworth filters: 4.0uF & 0.51mH for 3500, so even 4.7uF & 0.51 = moves me to 3250Hz, a little low. If there are ~4.5uF caps in the bunch, it might be better.

Thanks

Stuart