bsacco1 Posted October 24, 2014 Share Posted October 24, 2014 Anyone have any opinions on replacement options for the 68uf CAP on a CW2 crossover? I found this one on Parts Express: 68uF 100V Electrolytic Non-Polarized Crossover Capacitor ----- http://www.parts-express.com/68uf-100v-electrolytic-non-polarized-crossover-capacitor--027-356 Just curious if this CAP is any better than what I have stock in my CW2 crossover? I'd like to uncover 3 options for this replacement, Low cost, mid-price and highest quality. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted October 24, 2014 Share Posted October 24, 2014 http://www.parts-express.com/dayton-audio-dmpc-68-68uf-250v-polypropylene-capacitor--027-449 or buy the kit from Bob Crites with the Sonicaps and replace all of them. Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 24, 2014 Share Posted October 24, 2014 How old are the caps that are in there? You may want to leave them, the Dayton is going to be your lowest priced option at 10x the price fo the cap you are looking at. Quote Link to comment Share on other sites More sharing options...
bsacco1 Posted October 25, 2014 Author Share Posted October 25, 2014 (edited) How old are the caps that are in there? You may want to leave them, the Dayton is going to be your lowest priced option at 10x the price fo the cap you are looking at. The Caps are original as far as I can tell. So around 30 years old?. I think I'm OK with Dayton. I like the price points. Read many good reviews. Here are my low cost selections: 68uf = http://www.parts-express.com/68uf-100v-electrolytic-non-polarized-crossover-capacitor--027-356 1.5uf = http://www.parts-express.com/dayton-audio-pmpc-15-15uf-250v-precision-audio-capacitor--027-212 3.0uf - http://www.parts-express.com/dayton-audio-pmpc-30-30uf-250v-precision-audio-capacitor--027-220 Edited October 25, 2014 by bsacco1 Quote Link to comment Share on other sites More sharing options...
mustang guy Posted October 25, 2014 Share Posted October 25, 2014 Did the Sonicap guy scare you off? Bob Crites has tested many caps in these networks, and has concluded they are excellent. Quote Link to comment Share on other sites More sharing options...
bsacco1 Posted October 27, 2014 Author Share Posted October 27, 2014 (edited) yep, he did. Plus, their website is so damn hard to find anything. What about Solen? Edited October 27, 2014 by bsacco1 Quote Link to comment Share on other sites More sharing options...
moray james Posted October 27, 2014 Share Posted October 27, 2014 you could consider to loose the the electrolytic caps all together and replace them with a composite cap that you build up with parallel plastic caps. This will not only sound better than an electrolytic cap it will last Much longer than a litic cap will. Yet this composite cap will be larger but you have the space you never have to look at it so why not? Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
bsacco1 Posted October 27, 2014 Author Share Posted October 27, 2014 sounds interesting. How do you do it and what parts do i buy, cost? Quote Link to comment Share on other sites More sharing options...
moray james Posted October 27, 2014 Share Posted October 27, 2014 10uf is about as large as you will find easily though I have seen 12uf caps for cheap. you want to look for a plastic cap with a deposited conductive layer as those will be the least expensive. The Dayton's seem to offer good quality for very little money. So lets say you find a 10uf Dayton plastic cap (probably polyester) so you only need to parallel six of those plus a 8uf cap for a total of 68uf. Capacitor values add together when placed in parallel. This will cost more than a cheap electrolytic but it will last much longer and sound much better. Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
mustang guy Posted October 27, 2014 Share Posted October 27, 2014 (edited) yep, he did. Plus, their website is so damn hard to find anything. What about Solen? That's too bad. I really think a call to Bob Crites is in order. He may actually know more than you guy you spoke to about using Sonicaps with Klipsch networks. Also, Bob sells them, so you are better buying from him than using the crappy Sonicap site. I've been there, and am not impressed. Never used Solen, but some of the tube folks here use them in critical places in tube amps, so they can't be too bad... Edited October 27, 2014 by mustang guy Quote Link to comment Share on other sites More sharing options...
djk Posted October 28, 2014 Share Posted October 28, 2014 https://www.madisoundspeakerstore.com/surplus-capacitors/10.0-mfd-polypropylene-cap-10mfdp/tyee/ Stack up six or seven of these for cheap 68µF. Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 28, 2014 Share Posted October 28, 2014 https://www.madisoundspeakerstore.com/surplus-capacitors/10.0-mfd-polypropylene-cap-10mfdp/tyee/ Stack up six or seven of these for cheap 68µF. That makes sense, but it will only be $20 total cheaper than just using the Daytons. Is there an advantage to these? Quote Link to comment Share on other sites More sharing options...
Fjd Posted October 28, 2014 Share Posted October 28, 2014 (edited) Anyone have any opinions on replacement options for the 68uf CAP on a CW2 crossover? I found this one on Parts Express: 68uF 100V Electrolytic Non-Polarized Crossover Capacitor ----- http://www.parts-express.com/68uf-100v-electrolytic-non-polarized-crossover-capacitor--027-356 Just curious if this CAP is any better than what I have stock in my CW2 crossover? I'd like to uncover 3 options for this replacement, Low cost, mid-price and highest quality. It seems that others have adequately covered a few "low cost" options; therefore, I will weigh in for "mid-price" options and a higher quality, much more expensive option. If you are firm about buying from Parts Express and do not want to solder multiple capacitors to achieve 68uF, I'm not sure about others; however, I would characterize these as "mid-price" for me and gets me away from electrolytic caps. Audyn Cap Q4 68uF 400V MKP Metalized Polypropylene Foil Crossover Capacitor http://www.parts-express.com/audyn-cap-q4-68uf-400v-mkp-metalized-polypropylene-foil-crossover-capacitor--027-123 Dayton Audio DMPC-68 68uF 250V Polypropylene Capacitor http://www.parts-express.com/dayton-audio-dmpc-68-68uf-250v-polypropylene-capacitor--027-449 Jantzen 68uF 400V Crosscap Capacitor http://www.parts-express.com/jantzen-68uf-400v-crosscap-capacitor--027-952 Solen 68uF 400V Polypropylene Capacitor http://www.parts-express.com/solen-68uf-400v-polypropylene-capacitor--027-608 This capacitor is not from Parts Express; however, I find using what seems to be a very good aluminum and oil film capacitor intriguing, and, of course, it retails for a substantially higher price than the other selections. I believe that DeanG has used the EVO aluminum and oil capacitors for a couple of his customer builds. 68µF / 350V, Mcap EVO Oil Series, http://www.partsconnexion.com/capacitor_film_mundorf_evo_ao.html Edited October 28, 2014 by Fjd Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 28, 2014 Share Posted October 28, 2014 That's too bad. I really think a call to Bob Crites is in order. If you e-mail him, he'll get back with you pronto. Normally in less than an hour, at least that's been my experience. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 28, 2014 Share Posted October 28, 2014 (edited) Took about 30 seconds to find on his site. Copy and paste. KLIPSCH CORNWALL II REBUILD KIT FOR THE KLIPSCH CORNWALL II CROSSOVERS: $58.00 NOTE: Some very early Cornwall II crossovers had a wooden board that the crossover parts were mounted on. Later model Cornwall IIs had a printed circuit board attached to the input terminal cup. If you let me know which type crossover you have, I will get the right kit to you. HERE is the page Edited October 28, 2014 by CECAA850 Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 28, 2014 Share Posted October 28, 2014 Just get the kit from Bob Crites and have it over with. Electrolytic caps can and do sound very good when implemented properly. They are used in many high end speakers. But the designers have the luxury of testing, designing and redesigning, testing and retesting networks until they find what works. Just picking a $1.60 cap from a catalog is a crap shoot at best, and why you should go with the better caps. Bob has a history and is great to work with (and many have used his kits so you can get some feedback). 1 Quote Link to comment Share on other sites More sharing options...
avguytx Posted October 28, 2014 Share Posted October 28, 2014 I use Solen caps in pretty much all of my "better" speakers and have now for about 25 years. If they're larger uf caps, I'll sometimes use Dayton 5% poly caps, as mentioned, to save a little. I've not heard enough difference in the Sonicaps I've used to substantiate them over Solens for the extra price. Me personally, anyway. Quote Link to comment Share on other sites More sharing options...
Deang Posted October 28, 2014 Share Posted October 28, 2014 Jeff Glowacki of Soniccraft designed the Sonicap. He does not recommend its use for horns, or any metallized capacitor if you're going for the best sound possible -- and I am in agreement with him. The network is the heart of the loudspeaker. It deserves better than $58.00. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted October 28, 2014 Share Posted October 28, 2014 While you have the woofer out of the cabinets get yourself some acoustic panels and some Scotch 77 spray glue and put panels on the three non-opposing sides. The Cornwall II cabinet has no damping inside and can resonate at higher volumes. Just rap your knuckles on the side you'll see what I am talking about. You should replace all the wiring as well. Cheap crossover parts will not gain you anything over the stockers. Quote Link to comment Share on other sites More sharing options...
bsacco1 Posted October 28, 2014 Author Share Posted October 28, 2014 Is the Bob Crites x-over kit $58 per Speaker or is it $116 to do both? Quote Link to comment Share on other sites More sharing options...
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