Kain Posted December 3, 2012 Share Posted December 3, 2012 I was watching Saving Private Ryan on DVD (DTS version). I had it loud, -5 db. During the opening battle scene when Tom Hanks gets "stunned" and everything sounds muffled, I can hear a buzzing sound coming from my right RC-7 woofer. If I lower the volume, the tone changes, and if I continue to lower the volume, it goes away. I can only hear the buzzing during this part of the movie. However, it may be because the rest of the movie has loud clear sounds. I watched this part on my Sony HTIB and could not hear the same sound during the same part of the movie. What could it be? Does anyone else hear it? I don't think I've heard it before. Hope it is not the RC-7! I wouldn't mind if it was the A/V receiver because I am planning on getting an amplifer soon anyway. Quote Link to comment Share on other sites More sharing options...
Kain Posted December 3, 2012 Author Share Posted December 3, 2012 Just watched the first Transformers movie and during the opening credits with the machine-like sounds, I heard the same buzzing. Is it the RC-7 or the A/V receiver? [:S] Quote Link to comment Share on other sites More sharing options...
Kain Posted December 3, 2012 Author Share Posted December 3, 2012 Did some more testing and it seems it only happens when lower frequencies come out of the center channel (RC-7). It also only happens to the right woofer of the RC-7. Quote Link to comment Share on other sites More sharing options...
Scrappydue Posted December 3, 2012 Share Posted December 3, 2012 Sounds like a blown woofer to me or maybe something is loose. Try righting everything down. Then test again. If that don't work the try it on a different avr to isolate speaker or receiver. But to me it sounds like the driver is messed up Quote Link to comment Share on other sites More sharing options...
tmassey Posted December 3, 2012 Share Posted December 3, 2012 If it's just the right woofer, it's probably blown. I don't see how this could be a receiver problem. I would call Klipsch and see what they have to say. You could also buy a new woofer from them and it's a pretty easy fix. I had to do the same once for an RC-64 after I put a huge dent in one of the woofers when trying to move it. The woofer itself cost me 60$. An RC-7 woofer is probably a bit more expensive because it's a bigger woofer, but I can't imagine it being a lot different. You just have to talk to someone in the parts department. Good luck! Quote Link to comment Share on other sites More sharing options...
Kain Posted December 3, 2012 Author Share Posted December 3, 2012 Thanks for the reply. I will do some more testing. However, I was looking at the prices of the woofers in the RC-7 and they are being sold for around $60-$70 brand new. How come they are so cheap? This was a $800 speaker! Quote Link to comment Share on other sites More sharing options...
Scrappydue Posted December 3, 2012 Share Posted December 3, 2012 Well think two woofers, one tweeter, baffle, grill, wood, glue, hardware, and labor, plus they gotta make some on the side too. Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted December 3, 2012 Moderators Share Posted December 3, 2012 How come they are so cheap? This WAS a $800 speaker! Key word there, "WAS". The speaker is almost 10 years old now. You gotta have some room for depreciation. Quote Link to comment Share on other sites More sharing options...
Kain Posted December 3, 2012 Author Share Posted December 3, 2012 I don't have another A/V receiver. Is there any other way I can test to make sure it is the woofer in the RC-7 and not something else? Quote Link to comment Share on other sites More sharing options...
Scrappydue Posted December 3, 2012 Share Posted December 3, 2012 Yep you can swap your left and center speaker leads and watch something. If the left does it, it's the channel. If the center does it on the other lead then boom you got your problem Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted December 3, 2012 Share Posted December 3, 2012 Are you sure your adjustable legs are tight? Have you checked to see if the ports are loose? Quote Link to comment Share on other sites More sharing options...
Heritage_Head Posted December 3, 2012 Share Posted December 3, 2012 Could be something got in the back of the driver so take it out and see. You could also swap the two drivers and see how the other one works on that side. Sadly though it sounds like it’s blown. Quote Link to comment Share on other sites More sharing options...
Rivernuggets Posted December 3, 2012 Share Posted December 3, 2012 Play some R&B or other bass heavy music through your RC-7 for further troubleshooting. Might be easier listening to a regular beat and bassline, instead of a movie. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted December 3, 2012 Share Posted December 3, 2012 I would be willing to bet you are just over driving it. A receiver's power supply will run out of gas driving all the speakers playing at that level. First to go is the bass response. What is your crossover point on the RC-7 80Hz with a 12db slope? Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted December 3, 2012 Moderators Share Posted December 3, 2012 Play some R&B or other bass heavy music through your RC-7 for further troubleshooting. Might be easier listening to a regular beat and bassline, instead of a movie. I was thinking along the same lines but why not use a test tone cd that has specific frequencies. If you do not have a disk, let me know and I'll give you a link to download the files from. Quote Link to comment Share on other sites More sharing options...
Kain Posted December 4, 2012 Author Share Posted December 4, 2012 CECAA850, I am not using the legs, only the rubber feet that came with the speaker. Frzninvt, I am using a 80 Hz crossover for all of my speakers. I tested the center channel with AVIA and the 5.1 Audio Toolkit DVD. I could hear the same buzzing as in the movie during the 80 Hz crossover test. Then I took the front-right RF-7 speaker cable and attached to the RC-7. Played the same tests and could hear the same buzzing. I guess it is the RC-7. I'll talk to my local Klipsch dealer and see how much they charge for a replacement woofer. By the way, is it hard to replace the woofer yourself? Is it just a matter of unscrewing the woofer from the speaker, pulling it out (forward), removing the speaker wires, and inserting the new one while reattaching the speaker wire to the woofer? How is the speaker wire attached to the woofer? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted December 4, 2012 Share Posted December 4, 2012 Replacing the woofer is easy. Just unscrew it and remove it. The wires are attatched with spade connectors. Be careful when removing though as the drivers are MUCH heavier than they look. Quote Link to comment Share on other sites More sharing options...
Kain Posted December 4, 2012 Author Share Posted December 4, 2012 Thanks. Any guesses on what caused the woofer to blow? Underpowered clipping? I generally watch movies very loud (had these speakers since 2004) and I am assuming I pushed the A/V receiver too hard? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted December 4, 2012 Share Posted December 4, 2012 When you push in on the driver cone do you feel a rough scratchy travel or does it feel smooth? Quote Link to comment Share on other sites More sharing options...
Kain Posted December 4, 2012 Author Share Posted December 4, 2012 It feels smooth till I push it in real deep, then I feel it scratching something. It feels the same as the other driver cone on the RC-7 that does not seem to have a problem. Quote Link to comment Share on other sites More sharing options...
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