rugerdog Posted October 12, 2010 Share Posted October 12, 2010 I'm finally going to do the HF crossover mod on my RF-7's.I've looked at other pages and I'm not sure: Do I double up both resister's on both ends of the HF board,with the same resister's? 1 end has: 10w 2ohm J resister The other end has: 10w 1RJ resister Or do I just double up the 10w 2ohm J resister,like I can see in a picture? Thanks much Quote Link to comment Share on other sites More sharing options...
Deang Posted October 12, 2010 Share Posted October 12, 2010 You want to parallel a 10 ohm resistor with the existing 2 ohm resistor. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 12, 2010 Share Posted October 12, 2010 You want to parallel a 10 ohm resistor with the existing 2 ohm resistor. From the master. Quote Link to comment Share on other sites More sharing options...
Deang Posted October 13, 2010 Share Posted October 13, 2010 Just a Padawan Learner. Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 13, 2010 Author Share Posted October 13, 2010 Thanks Dean Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 13, 2010 Author Share Posted October 13, 2010 I went to a couple local places, I got 2 types. Manufacturer:NTE shows on it:NTE 10W 010 L F 10W 10ohm 5% 082L The other package of 2 : Manufacturer:Not sure manufactured in Mex for Radio Shack shows on it:CP-10 MEXICO 1026 10ohm 10% DALE 10W So one is 5% tolerence, and the other 10% tolerence.I will use the 5% by NTE,correct? Thanks Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 13, 2010 Author Share Posted October 13, 2010 Anyways,I hope that one would be a better one,the NTE 5%.I installed them.I'll now let the speakers play for some hours,then see how are. Thanks, Rugerdog Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 13, 2010 Author Share Posted October 13, 2010 That's great,and I'm sure that's just a teaser of a better difference,paralleling only the 2ohm resistors. Thank You Very Much Rugerdog Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 13, 2010 Author Share Posted October 13, 2010 Oh yea,I dont know if right persons will see this now,but I thought I'd mention.During reviewing past pages,and questions,I saw where I had mentioned someones RF-7 crossovers looked nothing like the ones in my RF-7's.I guess it's the photo that threw me off,my RF-7 crossovers are exactly like the ones in photos. Thanks again Dean and all.I'm on my way. What an impressive difference,and for about $2.00. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 13, 2010 Share Posted October 13, 2010 Dean walked me through the resistor mod before I had my crossover upgrade. What a great mod. It's got to be the best bang for the buck mod I've ever seen (heard), Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 14, 2010 Author Share Posted October 14, 2010 yes Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 14, 2010 Author Share Posted October 14, 2010 Excited.My Mobile Fidelity sacd:Foreigner (Foreigner) came today.I like most of those Mobile Fidelity Sound Lab,Original Master Recording sa/cd's. Perfect timing to have done the resistor addition. Pioneer Elite SC-09TX,Anthem Statement P2,Esoteric X-03SE,Klipsch RF-7,Audio Quest Cheetah,Transparent Audio Premium MusicWave Super bi-wire,Transparent Audio Premium Super power cords,Seperate mains/circuit breakers,seperate ground rod. All my items are original,except the extra 2ohm resistor in Klipsch RF-7 speakers. Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 14, 2010 Author Share Posted October 14, 2010 Strange, After having sound run thru the speakers for approx 15 hours,they seem really bright again.It's like the tweeter db is soo much higher than the rest??? I had'nt mentioned it yet,but it's something that seems to happen all the time.The HF seems soo much harsher at different times.I mean even with the same sa/cd,music tracks.???Soo much so,that it's like floor noise sound,or what is it called,pink test noise?, out of only the tweeters,both speakers.Actually the right speaker may be slightly more. What the heck can it be??? Faulty crossover parts,or need a different,larger db cutting resistor? What would a different,one piece resistor be to use?I see a 20w 8ohmresistor.In other words I'd like to remove the original resistor,and put in it's place 1 resistor.Or should I get 2 of the same 10w 10ohm resistors,and still parallel? Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 14, 2010 Author Share Posted October 14, 2010 Another item I don't understand,I researched other photos of other persons RF-7 crossovers,their HF resistor's the one's on each end of the HF board,I see,well I can see one's,and there's the same resistor on each end,the original ones that is.His photo (Name:Southern,May,23,2010 posting)shows both end resistors being the 10w 2ohm J,as I say the ones on my HF board are different on each end.As I state in my first post,at top of this page. Can someone,please, tell me if there supposed to be the same? Oh,forget it,I notice it's a photo from an RC-7.Center speaker I should probably give up Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 14, 2010 Author Share Posted October 14, 2010 Or,maybe another part of my, or some others RF-7 speakers having an off treble/high treble sound is,as I say one end of my HF board has a 10w 2ohm J resistor and the end has a 10w 1RJ resistor.What is the difference between these two resistors,if there supposed to both be 10w 2ohm,why are mine different.Maybe someone at Klipsch made a mistake??? With certain serial number range/runs??? Or maybe ran out of enough 10w 2ohm rsistors for awhile during assembly. Should I change out that 10w 1RJ resistor,to a 10w 2ohm? So both end are the same? Quote Link to comment Share on other sites More sharing options...
Deang Posted October 16, 2010 Share Posted October 16, 2010 You're getting yourself confused. With the wires facing you, the rf7 has a 1 ohm resistor on the right side of the board. The rc7 has a 2 ohm instead. Both networks have a 2 ohm resistor on the left side (next to the large 18mfd capacitor) - which is the side you want to add the 10 ohm resistor to. I can't really tell from the posts where you are with this at this point. It sounds as if you did it, that it initially sounded better, but then went sideways on you. It could be any number of things: most notably a bad solder joint or a damaged resistor from exposing it to too much heat. Quote Link to comment Share on other sites More sharing options...
rugerdog Posted October 16, 2010 Author Share Posted October 16, 2010 OK, When I get all the parts: Mills 1ohm 12w non ind " " 2ohm " " " " 10ohm " " Kimber 5uF 200v cap " " 12uF " " Jantzen 18uF 400v cross cap I still parallel the Mills 10ohm and 2ohm? Then just replace the items,part for part? correct? And leave the white/roundcoils where they are,untouched? correct? Quote Link to comment Share on other sites More sharing options...
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