Tim_in_NC Posted April 21, 2008 Share Posted April 21, 2008 Hi Guys, Sometimesduring loud playback of a film, during an extreme explosion, I'll get aloud pop from one of my RP-5 subs (Power 12" Sub Towers). The subs are connected via LFE Bassand the volume is less than 1/2 level (more like 1/3) ... Only one ofthe subs acts in this manor.This is only noticable at louder playback (not crazy loud, but not "normal" tv type listening levels) and during extreme LFE frequencies/explosions ... Not all explosions make this happen, only some extreme jolts/frequencies ...Anyone ever run into this type of issue? I've been running these subs for some time now (5 to 6 years) without this issue but over the past few months, it's become more noticable. Maybe I've just driving these subs too hard with this H/K AVR 7300 over the past couple years, and I'm starting to see Clipping of the RP's amp or Bottoming of the woofers on all the new LFE crazed source material ... Maybe the RP's amp is taking a dump! What do you guys think? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted April 21, 2008 Share Posted April 21, 2008 Sounds like it's bottoming out. The sub driver is ported (I believe) and if you are feeding it a LFE signal, it's most likely unloading below the tuning frequency which I think is 25 Hz. What do you guys think? Sounds like it's time to get a dedicated sub and take the LFE track off the RP-5's. Quote Link to comment Share on other sites More sharing options...
michael hurd Posted April 21, 2008 Share Posted April 21, 2008 If only one is having problems, maybe the best bet would be to swap the drivers ( easier than the amps ) and repeat the test. I am guessing that the level is a tad high. The input sensitivity on the plate amp might be slightly different. If the problem stays with one amp then you may have a problem with it. A call to Klipsch tech support might be your best bet after that.... 1-800-klipsch. Listen to the prompts, then select home audio. Quote Link to comment Share on other sites More sharing options...
Jeff Matthews Posted April 21, 2008 Share Posted April 21, 2008 Check here for one possibility: http://forums.klipsch.com/forums/t/83051.aspx?PageIndex=2 [] Quote Link to comment Share on other sites More sharing options...
Tim_in_NC Posted April 22, 2008 Author Share Posted April 22, 2008 That's pretty funny ... Maybe that's where our cat has gone ... [:S] I'm going to do further testing ... Thanks guys! Quote Link to comment Share on other sites More sharing options...
Guest BobG Posted April 24, 2008 Share Posted April 24, 2008 From your description, I'd think you are bottoming the woofer. the voice coil is striking the back plate in the magnet gap. this will make a very loud pop and will eventually bend the voice coil former out of round which will in turn cause the coil to scrape. TURN IT DOWN. The popping is a sure sign of overdriving the woofer. Quote Link to comment Share on other sites More sharing options...
Paul Posted April 30, 2008 Share Posted April 30, 2008 I will bring over my sub and see if you hear any pops,LOL.Your sub maybe setup on the hot side,turn her down. Quote Link to comment Share on other sites More sharing options...
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