JohnMabry Posted June 9, 2003 Share Posted June 9, 2003 A general question if anyone can help.....I purchased a Klipsch home audio system for my Stepdad for Father's day. Hooked it up today with a Yamaha receiver. Have 2 front speakers, subwoofer, 2 rear speakers, and center speaker. During loud sequences in dvd films or music, the received will kick off entirely. When turned back on it states "check sp wires" Anyone know what would be causing this? Thanks in advance! Quote Link to comment Share on other sites More sharing options...
dougdrake Posted June 9, 2003 Share Posted June 9, 2003 Sounds like you have a short in your speaker wires. Check the connections at the receiver and at the speakers, and make sure you have no stray little wires touching the other connection point. The short is probably very "small" and that's why your receiver doesn't kick off until you are putting a stronger signal through the speaker wires. If you were messing with stapling the speaker wires for any reason, like along a baseboard or something, be sure the staple didn't pierce the insulation. DD Quote Link to comment Share on other sites More sharing options...
lynnm Posted June 9, 2003 Share Posted June 9, 2003 In addition there is the possibility that the amp is unable to handle the load for some reason. Do you have another amp available that you could try ? The amp may be defective. Quote Link to comment Share on other sites More sharing options...
cyclonecj Posted June 9, 2003 Share Posted June 9, 2003 I had the same problem with a scene from Airforce One. Just as the shooting starts, the guy walks through the door & one of the terrorists hits him over the head with the butt of his rifle. This used to kill my receiver every time, until I changed my center channel speaker. It was a 4 ohm, & the new one is 8 ohm. It's a strange feeling when you are right in the middle of a major event like that, bullets going by your head etc, then suddenly.....dead quiet & no picture! Quote Link to comment Share on other sites More sharing options...
marksdad Posted June 9, 2003 Share Posted June 9, 2003 its the amp, electrically, no matter how small the contact it is still contact and it will react negativly, so it is my guess the klipsch's are just too much for the amp, those peaks during explosions require alot of power. is it an older amp? Quote Link to comment Share on other sites More sharing options...
WMcD Posted June 9, 2003 Share Posted June 9, 2003 I suspect you're tripping out a overload protection system in the amp. This is good in that if was not there, some internal component, probably an output transistor, would be burned out. What to do about it. I'm not quite sure. It could be that the amp will "like" 4 ohm speakers, at low levels, and your just pushing it too hard, drawing more current than it is happy with. My thought is that it is not a shorted wire in the feed line. You'd hear the effect at a lower audio level. A shorted wire would cause a current overload. So the unsophisticated software is making this suggestion without much analysis. There has been some traffic on similar problems, and suggested solutions. You could try putting 2 ohm or 4 ohm resistors in series with the speaker feed lines. I use an autotransforer solution which you may find in a search. These have their own compromises. Ultimately, you may have to invest in an amp which will accept a 4 ohm load at high power. Some have a switch to select 8 ohm or 4 ohm speakers. Gil Gil Quote Link to comment Share on other sites More sharing options...
dougdrake Posted June 9, 2003 Share Posted June 9, 2003 John - Don't leave us hanging, let us know I think my suggestion is worth trying, as it's the cheapest and easy to check. The others may also be valid. We're all guessing about the load your speakers are putting on your amp yet I don't think you've ever told us what model speakers you are using, or their average impedance. DD Quote Link to comment Share on other sites More sharing options...
danechristian Posted June 16, 2003 Share Posted June 16, 2003 basically dougrake is right. check your wiring.. other alternative is. maybe your amp is defective or cannot accept too much load. thats about it.. ohh maybe check also the polarity in your connection Quote Link to comment Share on other sites More sharing options...
gcribbs Posted July 23, 2003 Share Posted July 23, 2003 This is happening with my new speakers also. My Denon 2802 is shutting off during real loud scenes. I have tried changing my receiver subwoofer output to 120 Hz in an attempt to reduce the strain on the receiver. Changing it to 100 Hz did not seem to do anything. I am running 4 Rf-3II's and still using my KV2 as a center channel until I get my rc35. My subwoofer is an Energy sw10.2. I will try checking my wires as was suggested already. I am hoping this does not mean my receiver is too weak to power these speakers. Quote Link to comment Share on other sites More sharing options...
PhilMays Posted July 23, 2003 Share Posted July 23, 2003 OK....My bet is on speaker wire grounding out somewhere. Perhaps it is so small that when the volume is up the vibration is causing the exposed wire to touch. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted July 23, 2003 Share Posted July 23, 2003 If you find no loose or frayed speaker wires my bet would also be that the ohm load presented to the receiver is the culprit. You are asking it to generate more current than it is capable of. A 4 ohm speaker is only a nominal impedance that fluctuates and varies during playback. At some frequencies you could be dropping to 2 ohms or less which the receiver will not like, especially since it may be occurring in more than one pair of speakers. The RE on a pair of 4 ohm speakers is usually around 3.5 ohms. Try running only one pair of speakers and the center and see if it still occurrs, or only the mains. If it is not defective my suggestion would be to add an outboard amplifier that would take some of the load off the receiver. My Denon AVR-4800 only runs my KG-1's (rear surrounds () all the other speakers are run off outboard amplification. I decided to take this route back when I was running a Denon AVR-3300 due to the fact at very high volumes (-10 - + 10) and all speakers running the bass would fade out telling me the power supply reserves were exhausted. It would not shut down but the bass loss was very noticeable. Having the outboard amplifiers gives me improved dynamics and impact, improved overall clarity and lots of headroom, my ears will give out before anything else. Quote Link to comment Share on other sites More sharing options...
gcribbs Posted July 23, 2003 Share Posted July 23, 2003 but since the Rf-3II's are 8 Ohm speakers I am hoping that it is not a problem with the receiver being worked too hard. I would prefer to not having to get amps. It looks like rewiring it will be my first step. i will post how that goes tonight. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted July 23, 2003 Share Posted July 23, 2003 Use at least 16 gauge or larger! The larger gauges are preferable for the longer runs. I got some real nice 10 Gauge in Sapphire Blue made by Orion Car Audio for 0.25 a foot on eBay. All the real big Heritage speakers are connected with it, the rest with 16 gauge. Quote Link to comment Share on other sites More sharing options...
avman Posted July 23, 2003 Share Posted July 23, 2003 i install a/v stuff everyday. i have found that if a speaker wire strand touches the metal box of the receiver that it can go into protection mode.re-check for frayed wires. avman. Quote Link to comment Share on other sites More sharing options...
Fish Posted July 23, 2003 Share Posted July 23, 2003 I agree,Sounds like wire problems unless you are really droppin' the knob. Quote Link to comment Share on other sites More sharing options...
Malcolm Posted July 23, 2003 Share Posted July 23, 2003 Definitely check the wiring first. If the wiring is OK it is likely that the amp does not have the capacity to drive all of your speakers to the level you are trying to achieve. If that is the case, you need more sensitive speakers or a more powerful amp or both. Short of new hardware, you could try shifting more of the bass from your other speakers to the subwoofer assuming it is a powered subwoofer and your receiver's bass management allows you to do it Quote Link to comment Share on other sites More sharing options...
gcribbs Posted July 23, 2003 Share Posted July 23, 2003 well it looks like a couple wires were touching since after rewiring and being real careful i had no problem playing my next movie at an even higher volume. Now back to movies update: watched two more movies and it seems to be ok. no more shutdowns by the receiver. I am real glad i got a good receiver so that I did not lose it due to my mistake Quote Link to comment Share on other sites More sharing options...
Diggs Posted August 5, 2003 Share Posted August 5, 2003 All's well that ends well. I knew the 2802 wasn't the problem, as mine has no problem even running my 4 ohm KG-4's. Quote Link to comment Share on other sites More sharing options...
avman Posted August 5, 2003 Share Posted August 5, 2003 I HAD SOME KG 4S AT ONE TIME MAN THAT SPEAKER BLOWS BIG TIME GET RID OF THAT **** DIGGS. Quote Link to comment Share on other sites More sharing options...
Diggs Posted August 6, 2003 Share Posted August 6, 2003 Avman's co-worker: Why don't you go outside and play Hide-and-go-f***-yourself? Quote Link to comment Share on other sites More sharing options...
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