Tracy - Vintage nut Posted August 5, 2015 Share Posted August 5, 2015 Has anyone had trouble with tweeters blowing on this model? The crossovers have been rebuilt and installed titanium tweeters. What I have to drive them is Yamaha MX-1000U and generally run 175 per channel through them. Your input would be appreciated 1 Quote Link to comment Share on other sites More sharing options...
John Chi-town Posted August 5, 2015 Share Posted August 5, 2015 Tracy That is an issue that I am unaware of in the KLF line. Bigest issue with KLF series are loose cabinets that need to be braced and re-glued. Titanium diaphrams in the tweeters would not be the cause either. Is it the driver or diaphragm that fails? Either way without further details it sounds like either dirty or surgeing power is overloading the tweeter. Best regards, John 1 Quote Link to comment Share on other sites More sharing options...
Mighty Favog Posted August 6, 2015 Share Posted August 6, 2015 (edited) When I first brought home my KLF20's some 16-years ago, with a few weeks I blew both tweeters with what I thought was a moderate volume level.Turns out I left the EQ set to the same levels as a pair 87db sensitive Technics speakers I've had forever. The HF settings were WAY too hot for the 100db sensitive Klipsch. Edited August 6, 2015 by Mighty Favog 1 Quote Link to comment Share on other sites More sharing options...
Tracy - Vintage nut Posted August 6, 2015 Author Share Posted August 6, 2015 That may be a possibility, I will check that out, someone else told me that I should be using 10-12 ga. speaker wire as well, I am currently using 16. I will try that and see. Thanks for your help 1 Quote Link to comment Share on other sites More sharing options...
Mighty Favog Posted August 6, 2015 Share Posted August 6, 2015 (edited) Don't worry too much about the guage of the wiring you're using. That has nothing to do with the tweeter freaking out. 14ga. lamp cord wire should be fine for now. I'm using speaker wires about the size of a garden hose but that's all about "voicing" more than anything else......(uh, oh.....here come the arguments). Edited August 6, 2015 by Mighty Favog 2 Quote Link to comment Share on other sites More sharing options...
djk Posted August 6, 2015 Share Posted August 6, 2015 16ga wire is OK for a 4Ω speaker up to about 15 foot or so. If you have problems burning the tweeter, insert a 211-2 automotive lamp in series with the tweeter. 2 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted August 10, 2015 Share Posted August 10, 2015 If you have problems burning the tweeter, insert a 211-2 automotive lamp in series with the tweeter. I've heard that Sylvania sounds brighter than GE. 1 Quote Link to comment Share on other sites More sharing options...
djk Posted August 11, 2015 Share Posted August 11, 2015 (groan) Quote Link to comment Share on other sites More sharing options...
pzannucci Posted August 24, 2015 Share Posted August 24, 2015 The tweeters in the KLF 30s are reasonably robust. They are used in many other Klipsch speakers with similar network topography. I would be looking at what was done on the crossover upgrade or at the upstream components unless you are listening in a very large room at very loud levels. 1 Quote Link to comment Share on other sites More sharing options...
ChuckAb3 Posted August 24, 2015 Share Posted August 24, 2015 Might want to check out KLF issues witth Moray James. He has quite a bit of experience with them. Quote Link to comment Share on other sites More sharing options...
moray james Posted August 25, 2015 Share Posted August 25, 2015 stock KLF20/30 tweeters are robust enough, but the poly diaphragms just sound like crap and should be replaced with phenolic or to me better yet with titanium diaphragms from Bob Crites. The K79 tweeter is a good tweeter and is easily modified into an excellent tweeter with a little work. If your amplifier has a high frequency oscillation you are not likely to hear it but you will fry tweeters. There is no reason to suspect the tweeters. I would first have your amplifier and or source component checked out if they come back with a clean bill of health then contact Bob Crites and get a fresh set of capacitors and enjoy a better sounding set of loudspeakers that won't blow tweeters. 1 Quote Link to comment Share on other sites More sharing options...
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