karlson3 Posted February 23, 2019 Share Posted February 23, 2019 capacitor bypassing with values seemingly too small to have any audible effect is controversial against capacitors with very low ESR specs. Its been seen in "high end audio" for a long time. DJK (RIP) recommended it in simple form with 0.1uF Dayton foil caps in crossovers - and if I remember correctly (?), 2.2uF ->4.7uF across solid state amplifier's power supply electrolytics. for what its worth, reviews claim 0.01uF across 10uF made a difference with the cheap Dayton https://www.parts-express.com/dayton-audio-dffc-001-001uf-400v-by-pass-capacitor--027-450 Quote Link to comment Share on other sites More sharing options...
Schu Posted February 23, 2019 Share Posted February 23, 2019 1 2 Quote Link to comment Share on other sites More sharing options...
glens Posted February 23, 2019 Share Posted February 23, 2019 11 minutes ago, karlson3 said: capacitor bypassing with values seemingly too small to have any audible effect is controversial against capacitors with very low ESR specs. Its been seen in "high end audio" for a long time. DJK (RIP) recommended it in simple form with 0.1uF Dayton foil caps in crossovers - and if I remember correctly (?), 2.2uF ->4.7uF across solid state amplifier's power supply electrolytics.! Bypass caps on power supplies (a necessity oftentimes) is a completely different purpose and subject, where small signals can be adversely affected causing larger problems downstream. Here we're discussing large signals at the "bay". In this instance, a multiple of miniscule values were brought forward to address various (generally) specific audio regions. Quite a horse of a different color. 1 Quote Link to comment Share on other sites More sharing options...
Dave A Posted February 24, 2019 Share Posted February 24, 2019 22 hours ago, jimjimbo said: Who are you, Robert Kraft? GHIUTF, rwdskl sjurng kfdliou nre jjke a fewm,nm capacitor kfortkdvfklj!!! Chī diànróng huì ràng nǐ fāfēng (This is for Jeffry not Jim) 1 Quote Link to comment Share on other sites More sharing options...
Deang Posted February 24, 2019 Share Posted February 24, 2019 I tried really hard to use 8 awg. I’m lying. I didn’t try at all. Damned zip ties ruined everything! 1 1 Quote Link to comment Share on other sites More sharing options...
Dave A Posted February 24, 2019 Share Posted February 24, 2019 I tried 8g. Zip ties did not seem to make much difference. 1 Quote Link to comment Share on other sites More sharing options...
Deang Posted February 24, 2019 Share Posted February 24, 2019 Lmao, wtf. 🙂 2 Quote Link to comment Share on other sites More sharing options...
Deang Posted February 24, 2019 Share Posted February 24, 2019 Still laughing!!! 2 Quote Link to comment Share on other sites More sharing options...
Dave A Posted February 24, 2019 Share Posted February 24, 2019 8 minutes ago, Deang said: Still laughing!!! YES as a MATTER of Fact 1 Quote Link to comment Share on other sites More sharing options...
richieb Posted February 24, 2019 Share Posted February 24, 2019 53 minutes ago, Dave A said: GHIUTF, rwdskl sjurng kfdliou nre jjke a fewm,nm capacitor kfortkdvfklj!!! Chī diànróng huì ràng nǐ fāfēng === Robert Krafts masseuse ^^^^^ 1 Quote Link to comment Share on other sites More sharing options...
Dave1290 Posted February 24, 2019 Share Posted February 24, 2019 I'm not laffin too hard. Just kinda grinning. All I know is my caps haven't rolled away yet so those cable ties must be working. No smoke out the rhl (oopsie 'rear horn loaded') mids and tweeters on my LS. So yea @Deang, I guess I'm good to go. Anything crazy nuts happens you'll be the first to know! Never met PWK but I do know he had his game together imo. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted February 24, 2019 Share Posted February 24, 2019 1 hour ago, Dave A said: GHIUTF, rwdskl sjurng kfdliou nre jjke a fewm,nm capacitor kfortkdvfklj!!! Chī diànróng huì ràng nǐ fāfēng That's what she said. Who do you think you're fooling? Quote Link to comment Share on other sites More sharing options...
DizRotus Posted February 24, 2019 Share Posted February 24, 2019 11 hours ago, Dave A said: I tried 8g. Zip ties did not seem to make much difference. I think the flame needs to be adjusted a bit to get better solder joints. Quote Link to comment Share on other sites More sharing options...
Budman Posted February 24, 2019 Share Posted February 24, 2019 12 hours ago, Deang said: I tried really hard to use 8 awg. I’m lying. I didn’t try at all. Damned zip ties ruined everything! can i get a set of these 1 Quote Link to comment Share on other sites More sharing options...
karlson3 Posted February 24, 2019 Share Posted February 24, 2019 where can one get those zippy doohickey things? (to be "fair", Jupiter + Multicap might be considered "non scientific" vs say a $1 Chinese "Audiophiler" cap 😜 (those have low ESR but sound "hard" to my old deaf ears) Quote Link to comment Share on other sites More sharing options...
Deang Posted February 24, 2019 Share Posted February 24, 2019 36 minutes ago, Budman said: can i get a set of these Yours will be a little different. The big Jupiter will still be there, but the tweeter caps will be Arizona Blue hermetically sealed oil filled - which is the cap I will stay with for as long as they’re available. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 24, 2019 Share Posted February 24, 2019 50 minutes ago, karlson3 said: where can one get those zippy doohickey things? (to be "fair", Jupiter + Multicap might be considered "non scientific" vs say a $1 Chinese "Audiophiler" cap 😜 (those have low ESR but sound "hard" to my old deaf ears) Just cable ties with screw holes. You can get them at Lowes, partsexpress, etc. Edit: just realized I didn’t use those last night - you must be asking about these. Don’t cinch very hard, just enough to hold them place. https://www.parts-express.com/cable-wire-tie-screw-mount-120-lb-tensile-10-pcs-made-in-usa--080-512 They sound “hard” because they’re poorly made metalized types using recycled film. It’s the same issue I have with cheap Mylars. Quote Link to comment Share on other sites More sharing options...
karlson3 Posted February 24, 2019 Share Posted February 24, 2019 @Deang - re: screw mounts for zip ties - Fantastic = many thanks. Do you think Erse's Mylar capacitors are "virgin" film? (oh - I see in an earlier thread that lead termination is often the cheap-out with cheap capacitors) Quote Link to comment Share on other sites More sharing options...
Deang Posted February 24, 2019 Share Posted February 24, 2019 I tore apart one their polypropylene caps not too long ago. I wasn’t impressed. They claim the leads are soldered, they aren’t - which is what I figured, since it’s not possible to do that without damaging the film. Probably fine for the shunt in the low pass part of the filter. Quote Link to comment Share on other sites More sharing options...
karlson3 Posted February 24, 2019 Share Posted February 24, 2019 maybe the "soldered" part refers to solder tinning the leads ... ha. "Fast Cap" also uses the term "soldered lead termination" but also: "Contact: Non-Inductive, Zinc Thermally Sprayed Extended Film" (dunno what that means) https://www.madisoundspeakerstore.com/solen-capacitors/solen-25-mfd-fast-cap-400v/ Quote Link to comment Share on other sites More sharing options...
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