SWL Posted December 27, 2017 Author Share Posted December 27, 2017 Your taste will change from Pantera to Tinnitus very quickly. Yeah, I think I'm partially there already.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
Coytee Posted December 27, 2017 Share Posted December 27, 2017 21 hours ago, DizRotus said: FWIW, my experience is exactly the opposite. I frequently blew T35s in the 70s in my mobile DJ biz, but never a woofer. In those days, a phone call to EV in Buchanan, MI would get a replacement diaphragm and invoice (less than $20) in the mail. Those days are gone forever. Yep, I totally agree. When I was younger & dumber, I didn't know what to do so I lugged my EV Interface D (with blown ST-350 which I think uses the same motor as the T-35) Anyway, the speaker was ballpark 120 pounds, grunted it into the back of my car and drove it about 2 hours away to a service center. Left it there for (don't remember) a week or three? Went back & picked it up. Later in life, I realized it's a lot easier to deal with that little 4 pound tweeter than the entire box!! I've blown a couple tweeters but never ever a woofer nor midrange. 1 Quote Link to comment Share on other sites More sharing options...
SWL Posted December 27, 2017 Author Share Posted December 27, 2017 Haven't blown any woofs or mids in my 30's.....but at one time I had three pairs of RF-7's and probably blew 4-5 woofers in a two year period.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
jjptkd Posted December 27, 2017 Share Posted December 27, 2017 I had a fun night years back with my old '30's had 675 watts a channel driving them and blew 1 tweeter, 1 mid, over-extended and froze one woofer (ended up being blown) and caused multiple splits in another woofer. We drank so much that night I didn't realize the speakers were damaged until 2 days later when my headache went away enough to power the stereo back up and it sounded horrible.. I was lucky to find 2 stock woofers on eBay and replaced both mids and tweeters to be safe, my brother has them now. He drives them with a Carver TFM-45 (375x2) and if you really crank it up speakers will let out a "pop" sound but you really have to push them well beyond reasonable volumes to get them to do that. He's had that setup for a few years now and thrown some big get togethers where the stereo was cranked for hours and has never blown any drivers (knocks on wood.) 1 Quote Link to comment Share on other sites More sharing options...
djk Posted December 28, 2017 Share Posted December 28, 2017 " (with blown ST-350 which I think uses the same motor as the T-35) " St350 had a bigger magnet, same diaphragm. What your dealer should have sold you was a pair of the STR tweeter protectors. The ST350B used two stacked square magnets (as used in the K77). Big ring magnet version. Stacked square magnet version. The EV drivers with the 1-1/4" coils usually use a 0.5A PTC to protect them in their factory crossovers. The Speaker Exchange crossover shows a pair of 211-2 lamps in parallel, way too much current. One 211-2 would be more appropriate. The #1141 looks to be a better choice. #211-2 I^2=1 works well with 8Ω drivers with 1" coils #1141 I^2=2 works well with 8Ω drivers with 1-1/4" ~ 1-1/2"coils #1156 I^2=4 works well with 8Ω drivers with 1-3/4" ~ 2"coilsEdited by _djk_ - December 22 2011 at 4:02am 1 Quote Link to comment Share on other sites More sharing options...
SWL Posted December 28, 2017 Author Share Posted December 28, 2017 Got the new titanium tweeter diaphragms today from Bob. After about 15 minutes of installation, we're back in business.[emoji106]Breaking them in as we speak with a 500 watt Crown K2. Maybe I should do it right and speed up the process with the amp sitting right next to it.....a Crown Macrotech 3600vz, 1200 watts @ 8 ohms. Let's see if we can get er up to 170db. I'll let you know how that turns out.....[emoji5]Here's the one that fried.....Sent from my SM-G950U using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
jason str Posted December 28, 2017 Share Posted December 28, 2017 WOOIHOO! back in business. Don't **** these up. 2 Quote Link to comment Share on other sites More sharing options...
pzannucci Posted December 29, 2017 Share Posted December 29, 2017 17 hours ago, SWL said: Got the new titanium tweeter diaphragms today from Bob. After about 15 minutes of installation, we're back in business. Breaking them in as we speak with a 500 watt Crown K2. Maybe I should do it right and speed up the process with the amp sitting right next to it.....a Crown Macrotech 3600vz, 1200 watts @ 8 ohms. Let's see if we can get er up to 170db. I'll let you know how that turns out..... Sent from my SM-G950U using Tapatalk By the way, did Bob modify his crossovers to lower the tweeter crossover point or are they equivalent to stock but with just better parts? Might want to take a look at the crossover values just to be sure. If dropped for smoother response, a fast cut off like a fuse may be in order. Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 The xovers are not modified as far as I know. I blew the tweeter about 2 weeks after the new xovers.I'll shoot an email to Bob to confirm.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 I emailed Bob and he responded promptly. He said that no modification is necessary for the klf 30 titanium tweeter diaphragms.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 ..... And I would have to agree, they sound perfect.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 Also want to add.......that Bob's service and products are just about as good as it gets. Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
pzannucci Posted December 29, 2017 Share Posted December 29, 2017 8 minutes ago, SWL said: I emailed Bob and he responded promptly. He said that no modification is necessary for the klf 30 titanium tweeter diaphragms. Sent from my SM-G950U using Tapatalk SWL, I was talking about the crossover and not the tweeter. The Ti diaphragm doesn't require crossover changes. So Bob just copies the Klipsch crossover and uses better components? No changes to the crossover points or slopes are done on his new crossovers? Just trying to account for why his Ti would fail over the poly. A change in slope or crossover point (shallower slope or lower crossover point) could stress the Ti diaphragm more than the stock crossover (or even an out of spec component such as a cap). I find it odd to have the failure as I think you have had those KLFs a while, unless you changed your listening habits or the diaphragm was suspect to begin with or can't handle the power of the Klipsch version. Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 Sorry, that's what I meant to say......no modification is necessary to the xover.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 Yes, it was a change in listening habits. I was experimenting with some unbalanced to balanced converters and got carried away.I was in awe of how much power the 30's could put out and kept pushing the limits.Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 Really pushing the limits......Sent from my SM-G950U using Tapatalk Quote Link to comment Share on other sites More sharing options...
Ceptorman Posted December 29, 2017 Share Posted December 29, 2017 170 db? Quote Link to comment Share on other sites More sharing options...
dtr20 Posted December 29, 2017 Share Posted December 29, 2017 You only need to modify the crossover if you are running titanium midrange drivers. Quote Link to comment Share on other sites More sharing options...
pzannucci Posted December 29, 2017 Share Posted December 29, 2017 37 minutes ago, Ceptorman said: 170 db? 30's will actually put out some ridiculous output. 170db to squash your head, no. I know I have pushed 30's to some levels I have only had khorns up to but the only things that started to fail were my ears. 1 Quote Link to comment Share on other sites More sharing options...
SWL Posted December 29, 2017 Author Share Posted December 29, 2017 I was just joking....Sent from my SM-G950U using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
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