avguytx Posted September 28, 2014 Share Posted September 28, 2014 After a couple hours work, my CF-3 crossovers are updated with Solen caps on the high frequency side and Dayton 5% poly caps on the low side. Also, Mills 12 watt 1% resistors replaced the original ones and the 1-ohm resistor across the HF circuit removed which, apparently, makes them closer to the version 1 crossovers. The speakers have been playing for awhile at low volume as not everyone likes it as loud as I do it seems. But my wife spent a week in the hospital and had surgery this past Monday so she's not quite ready for jam time. Next step will be to extend the ports and put some "Fat Mat" on the horns and woofer frame which will probably be as far as I care to go. As soon as my KLF-30's make it here from Austin, TX next month, the process will start over again but I'll most likely change out the Poly diaphragms out for the titanium versions. 1 Quote Link to comment Share on other sites More sharing options...
cradeldorf Posted September 29, 2014 Share Posted September 29, 2014 can't wait to see your 30's going under the knife. I'm fine with my polys... Quote Link to comment Share on other sites More sharing options...
moray james Posted September 29, 2014 Share Posted September 29, 2014 did you remember to jumper the spot where the one ohm resistor was? Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
avguytx Posted September 29, 2014 Author Share Posted September 29, 2014 Yep. There's a jumper soldered in place. Quote Link to comment Share on other sites More sharing options...
avguytx Posted September 29, 2014 Author Share Posted September 29, 2014 can't wait to see your 30's going under the knife. I'm fine with my polys... Yeah, I hope he'll be able to bring them back in a couple of weeks. They'll be disassembled and braced, sanded down, and restrained something besides the messed up black satin finish. Quote Link to comment Share on other sites More sharing options...
avguytx Posted October 4, 2014 Author Share Posted October 4, 2014 I guess I didn't make my thread too exciting, huh? ;-) Quote Link to comment Share on other sites More sharing options...
moray james Posted October 4, 2014 Share Posted October 4, 2014 keep your eyes open for a good condition pair of EV DH1506 drivers the original diaphragms are one piece former diaphragm with a Mylar surround very impressive drivers. At least one of the members here has them on his CF4 (alexg5775) they make the stock driver look like a toy. Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
indyhawg Posted October 27, 2014 Share Posted October 27, 2014 I guess I didn't make my thread too exciting, huh? ;-) I thought it was exciting. LOL. I picked up a set of Version 1's this weekend. Your XO is a little different than mine. Excellent work. I will be ordering my parts soon. Quote Link to comment Share on other sites More sharing options...
avguytx Posted October 27, 2014 Author Share Posted October 27, 2014 Post What yours have in them if you have a chance. It would be interesting g to see what the differences are. Quote Link to comment Share on other sites More sharing options...
Anotherforumname Posted October 27, 2014 Share Posted October 27, 2014 (edited) Nice work! I never used Solen on my re-builds. Looks good though. Edited October 27, 2014 by Anotherforumname Quote Link to comment Share on other sites More sharing options...
red1302 Posted December 20, 2014 Share Posted December 20, 2014 (edited) I have CF-3's version 3. Is this a vey difficult mod. I have some soldering skill. avguytx, would it be possible to provide a parts list and a breif how to for those of us who would like do upgrade our crossovers ,however, we don't know where to start. Thank you, John Edited December 21, 2014 by red1302 1 Quote Link to comment Share on other sites More sharing options...
wvu80 Posted June 16, 2015 Share Posted June 16, 2015 (edited) I guess I didn't make my thread too exciting, huh? ;-) Well, it's exciting now. I have a project I'm working on with the CF-3 XO version 3 and I was looking with interest at your crossover work. When you check back in, I may have a couple of questions, if you don't mind, starting with "do you have a parts list" and ending with "how does it sound with the mods?" Edited June 17, 2015 by wvu80 Quote Link to comment Share on other sites More sharing options...
avguytx Posted June 17, 2015 Author Share Posted June 17, 2015 (edited) I may have a parts list somewhere if I saved the invoice...I'll check on that. Admittedly, my hearing isn't what it once was having tinnitus now which sucks. Once upon a time, I had phenomenonal hearing out to 19kHz and was a certified judge for the SQ car audio competitions before they turned more spl centered. The part change really opened them up all across the board and, with the longer ports, helped the lower end. I'm very happy with them and the KLF-30's don't hold a candle to them in comparison in my living room and setup. I never did the dynamat on the woofers or horn but maybe will get to it soon. Edited June 17, 2015 by avguytx Quote Link to comment Share on other sites More sharing options...
wvu80 Posted June 17, 2015 Share Posted June 17, 2015 I may have a parts list somewhere if I saved the invoice.. Red1302 (directly upstream) commented in the original run of this thread in 2014 that he would like a parts list. Did you guys ever PM back and forth? You might have listed the parts list in the PM if you can find it. 1 Quote Link to comment Share on other sites More sharing options...
red1302 Posted June 18, 2015 Share Posted June 18, 2015 Wvu80 thank you for starting this thread again. And avguytx, yes it is exciting. The prospect of learning more information on my version 3 CF-3s is very cool. I've not done any mods yet.I found mine locally three years ago. My first Klipsch. They are very nice. the man I bought them from had purchased them new in a PX(?) while in the Navy in Japan. Like Wvu80, I will appreciate any information on parts and instructions on how to accomplish what you were able to do. John 1 Quote Link to comment Share on other sites More sharing options...
avguytx Posted June 18, 2015 Author Share Posted June 18, 2015 (edited) Well, I looked around on my laptop for any documents but there's nothing but pictures once they were done. As mentioned, there are different versions of the crossover networks and I changed mine around as much as I could to the version 1 crossovers. There were resistor value changes and the deletion of the 1-ohm resistor (with a jumper in place) per network based on the diagram attached. I'll keep looking for an invoice on my parts but I'm pretty sure they are Solen caps for the highs and Dayton 5% poly caps on the lows. I believe I used Mundorf resistors, too. CF-3_pn_1163421 (1).pdf Edited June 18, 2015 by avguytx 1 Quote Link to comment Share on other sites More sharing options...
red1302 Posted June 18, 2015 Share Posted June 18, 2015 Thank you, avguytx. John Quote Link to comment Share on other sites More sharing options...
wvu80 Posted June 20, 2015 Share Posted June 20, 2015 (edited) Well, I looked around on my laptop for any documents but there's nothing but pictures once they were done. As mentioned, there are different versions of the crossover networks and I changed mine around as much as I could to the version 1 crossovers. There were resistor value changes and the deletion of the 1-ohm resistor (with a jumper in place) per network based on the diagram attached. I'll keep looking for an invoice on my parts but I'm pretty sure they are Solen caps for the highs and Dayton 5% poly caps on the lows. I believe I used Mundorf resistors, too. OK, I think I got what you did. No "upgrades" in terms of changing the engineering, just keeping the v1 values and upgrading the quality of the caps and resisters. I think it's Dean G who is gung-ho on the importance of using quality resistors. Thanks for the CF-3 .pdf which was unlabeled in terms of version, so it's probably the first or "A" schematic. I have a schematic labeled CF-3 B so I'll compare it to the version you posted and see what the differences are. Edited June 20, 2015 by wvu80 Quote Link to comment Share on other sites More sharing options...
avguytx Posted June 20, 2015 Author Share Posted June 20, 2015 No, no changing of the engineering...just getting them closer to version 1's. Not that my ears would really be able to tell between the three iterations, but... I've always used Mundorf or Mills resistors in my better speakers crossover networks; even back in my car audio days of running a complex passive network on a single amplifier for certain low power classes (10+ speakers on single amp with center channel and subwoofer). Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted October 12, 2015 Share Posted October 12, 2015 I have a follow up question you guys can help with hopefully. A buddy of mine just got a pair of CF-3s and the tweeter on one either doesn't work or is in and he. He removed the "bad" tweeter and checked it on the other speaker and the tweeter works right so I figure there is a loose wire at xover and or short and of blow part. I took xover out and brought it home. I swear I thought I heard sound coming from the xover (with no speakers connected) when I put it close to my ear! DISCLAIMER: I'M NOT CRAZY (AT LEAST I DON'T THINK SO, I DON'T DRINK OR DO DRUGS AND THERE WERE NO ALIENS NEAR THE HOUSE AS CLOSE AS I CAN TELL) SUGGESTIONS??? I'm trying to help my friend do a low cost fix (maybe we can re cap the xover per this thread if he wants to spend the bucks. Got a great looking pair for $250 (ala not working tweeter). Thanks guys! Quote Link to comment Share on other sites More sharing options...
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