CECAA850 Posted July 5, 2020 Share Posted July 5, 2020 I've got a new (to me) pair of speakers and was going to do a recap on. I found the schematic on line and it has 4 caps per crossover. 3 of the cap values on my board agree with the cap values on the schematic. The 4'th one does not. The schematic shows a 26 and my board has a 24. The boards appear to be stock. I was wondering whether to go back with what I have or what the schematic shows? http://mypicsonline.net/archive/archives.telex.com/archives/EV/Equalizers/EDS/XEQ-504A EDS.pdf Quote Link to comment Share on other sites More sharing options...
JohnA Posted July 5, 2020 Share Posted July 5, 2020 Sounds like a production change. The question (for E-V) is was it because of part availability/cost, or driver/sound quality. If you like the sound, replace in kind. Quote Link to comment Share on other sites More sharing options...
mboxler Posted July 5, 2020 Share Posted July 5, 2020 I wonder what the 24uf labeled cap actually measures. It could very well measure 26uf, which is within +- 10% tolerance. Quote Link to comment Share on other sites More sharing options...
pzannucci Posted July 6, 2020 Share Posted July 6, 2020 16 hours ago, CECAA850 said: I've got a new (to me) pair of speakers and was going to do a recap on. I found the schematic on line and it has 4 caps per crossover. 3 of the cap values on my board agree with the cap values on the schematic. The 4'th one does not. The schematic shows a 26 and my board has a 24. The boards appear to be stock. I was wondering whether to go back with what I have or what the schematic shows? http://mypicsonline.net/archive/archives.telex.com/archives/EV/Equalizers/EDS/XEQ-504A EDS.pdf The difference will make a very slight change in the crossover curve. Also depends on how the original measured. There is always variance. Look up Crossover Designer in Google and play with the 2 way values (text book but you will get the idea). Quote Link to comment Share on other sites More sharing options...
Coytee Posted July 6, 2020 Share Posted July 6, 2020 Or.... walk into the Light and go active... The water is warm. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 6, 2020 Author Share Posted July 6, 2020 1 hour ago, Coytee said: The water is warm. Did you pee in the pool? Thank you all for your responses. Well, everyone but Richard. Next question. There are electrolytics in the woofer section. Will I notice a difference with a different type cap? 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 6, 2020 Author Share Posted July 6, 2020 16 hours ago, JohnA said: If you like the sound, replace in kind. It's certainly not horrible as is. Actually these are pretty amazing especially considering the footprint. Quote Link to comment Share on other sites More sharing options...
Deang Posted July 6, 2020 Share Posted July 6, 2020 Caps in the low pass can be electrolytics. You have to go metallized for the the rest, you don't have any values you can buy film and foils for except the 3.5, and you would have to cheat it with a 3.3. I still like the Daytons or Bennics for that kind of work. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 6, 2020 Author Share Posted July 6, 2020 1 hour ago, Deang said: Caps in the low pass can be electrolytics. You have to go metallized for the the rest, you don't have any values you can buy film and foils for except the 3.5, and you would have to cheat it with a 3.3. I still like the Daytons or Bennics for that kind of work. Thanks. Never heard of Bennics. Quote Link to comment Share on other sites More sharing options...
Deang Posted July 6, 2020 Share Posted July 6, 2020 Basically the same as the Daytons -- Madisound sells them. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 6, 2020 Author Share Posted July 6, 2020 25 minutes ago, Deang said: Basically the same as the Daytons -- Madisound sells them. Looks like I can do the whole board with Daytons and don't have to use electrolytic. They didn't have the right values for the woofers. Quote Link to comment Share on other sites More sharing options...
Deang Posted July 6, 2020 Share Posted July 6, 2020 Yeah, sometimes decisions are made for you ... Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 6, 2020 Share Posted July 6, 2020 21 hours ago, CECAA850 said: I've got a new (to me) pair of speakers and was going to do a recap on. I found the schematic on line and it has 4 caps per crossover. 3 of the cap values on my board agree with the cap values on the schematic. The 4'th one does not. The schematic shows a 26 and my board has a 24. The boards appear to be stock. I was wondering whether to go back with what I have or what the schematic shows? http://mypicsonline.net/archive/archives.telex.com/archives/EV/Equalizers/EDS/XEQ-504A EDS.pdf cool device , a Crossover/Equaliser ----- Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 10, 2020 Author Share Posted July 10, 2020 Can someone look at the schematic and tell me what's happening at the "jumper" (circled points 3 and 5). It looks as if they're paralleled but I don't understand why they call it a jumper as opposed to just wiring it normally. Quote Link to comment Share on other sites More sharing options...
Marvel Posted July 10, 2020 Share Posted July 10, 2020 You are supposed to jumper either 3 OR 5 to terminal 4, depending on whether you are using an HP940 OR HP9040 horn. It's on the data sheet. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 10, 2020 Author Share Posted July 10, 2020 5 minutes ago, Marvel said: You are supposed to jumper either 3 OR 5 to terminal 4, depending on whether you are using an HP940 OR HP9040 horn. It's on the data sheet. I think I get it Bruce, thanks. My confusion was due to the fact that the jumper is on the input panel and not the "crossover" itself. I'm just looking at the schematic and the crossover is at home. Thanks again. Quote Link to comment Share on other sites More sharing options...
Marvel Posted July 10, 2020 Share Posted July 10, 2020 No problem. Quote Link to comment Share on other sites More sharing options...
babadono Posted July 10, 2020 Share Posted July 10, 2020 2 hours ago, Marvel said: You are supposed to jumper either 3 OR 5 to terminal 4, depending on whether you are using an HP940 OR HP9040 horn. It's on the data sheet. Took me a couple minutes to catch that. Kept looking at the two FR graphs thinking what's the diff?...then ....oh 904 horn and 9040 horn. So which one you got @CECAA850 ? Quote Link to comment Share on other sites More sharing options...
JohnA Posted July 10, 2020 Share Posted July 10, 2020 On 7/6/2020 at 8:37 AM, CECAA850 said: Did you pee in the pool? Thank you all for your responses. Well, everyone but Richard. Next question. There are electrolytics in the woofer section. Will I notice a difference with a different type cap? At least he earned you! While I agree with Dean, if the electrolytics are parallel to the vwoofer, I don't use them. They need to be "reformed" after the sit and become delinquent. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 10, 2020 Author Share Posted July 10, 2020 2 hours ago, babadono said: Took me a couple minutes to catch that. Kept looking at the two FR graphs thinking what's the diff?...then ....oh 904 horn and 9040 horn. So which one you got @CECAA850 ? Not sure. I suppose I can look at the crossover and see how it's wired if there isn't a stamp on the horn. Quote Link to comment Share on other sites More sharing options...
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