g42
Minor Hero
Posts: 29
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Post by g42 on Jan 18, 2013 20:40:01 GMT -5
Got it today. I let it warm up to room temperature for a few hours, just in case it got cold in the courier vehicle. Hooked it all up, seems simple enough. Turned on some music I'm very familiar with so I'd notice any sound improvement immediately. Noticed no difference in sound from before I had it. Not even a difference in volume. Turned it up a bit, sound got thin and weak, just like before. Then suddenly it lost all power and became horribly muffled and weak on all channels - to the point it's not even listenable and you wouldn't even know what song is playing, what band is playing, even what style of music is playing. Just a weak warble and nothing else.
It's doing this on all channels now, even ones that weren't on when I was playing the music, so it's not like I blew out the speakers.
WHAT IN THE HELL?!?
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Post by garbulky on Jan 18, 2013 21:12:00 GMT -5
Whaaat? Contact emotiva! BTW, before you do that you may want to recalibrate your speakers (room correction) setup.
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Post by audiofile on Jan 18, 2013 21:17:29 GMT -5
well that don't sound right at all!!!
How about your source or your AVR? Everything OK at that end?
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 18, 2013 21:28:04 GMT -5
This odd. The center channel and rears are working normally now, and the tweeters in my fronts are working. It is now just the woofers that do nothing. It seems like they're just totally blown, yet that doesn't explain why the others speakers quit and then came back, or why they all blew the same way all at once.
I don't have another receiver around to try in the odd chance it's the issue.
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Post by garbulky on Jan 18, 2013 21:29:16 GMT -5
Revert back to your previous amp. Do the speakers work?
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 18, 2013 21:45:09 GMT -5
I hooked back up to the receiver, no change. Speakers still don't work.
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Post by garbulky on Jan 18, 2013 21:49:00 GMT -5
That's confusing. If they were ALL to blow you usually would have heard a very loud pop or distortion before they ALL failed. Unless it's some sort of ridiculous DC offset
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 18, 2013 21:52:30 GMT -5
Yeah that's why I'm holding out hope that there's some other solution to this. All 4 woofers gone at the exact same moment with no notice. Plus I have a powered sub taking the load off them anyway.
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Post by creimes on Jan 18, 2013 22:09:55 GMT -5
Have any other preamps at all or such you could try with the XPA-5, sounds more like the receiver if it does it without the XPA-5 connected
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Post by solarrdadd on Jan 18, 2013 22:20:26 GMT -5
also, try removing the current front L&R channel inputs and swap out the surrounds (both interconnects & speaker cables) on the amp to where the front L&R were. if you still get good sound from the surround speakers then you will know it most likely was a receiver issue on those two channels. if you don't get sound out of those two channels in questions it's likely either the amp or the interconnects your using for the front L&R channels. at any point did the blue lights on the amp screen face turn to flashing red lights or flashing any color lights? i ask because i had my XPA-5 for a little while and got 2 channels with protection flashing lights on them, turned out the old RCA cables i had failed. i purchased new ones and everything worked fine. of course my speakers didn't get damaged; just the fuses in the amp. to this day i've never had another serious issue with my XPA-5. i do hope you get your issue resolved and sorry about the speakers.  |
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 18, 2013 22:29:39 GMT -5
Thanks for all the help. Here's where I stand so far(I'm going through troubleshooting on the Polk forums also so pardon me if I start confusing one conversation with the other)...
I didn't see any change in the lights on the XPA 5.
I hooked up my rear surrounds (FXI A6s) in the front positions, and they sound normal. I also tried the center channel as the left front, and it sounded normal. But both of these only have tweeters and midrange drivers, not woofers, if that makes any difference.
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Post by solarrdadd on Jan 18, 2013 22:57:05 GMT -5
Thanks for all the help. Here's where I stand so far(I'm going through troubleshooting on the Polk forums also so pardon me if I start confusing one conversation with the other)... I didn't see any change in the lights on the XPA 5. I hooked up my rear surrounds (FXI A6s) in the front positions, and they sound normal. I also tried the center channel as the left front, and it sounded normal. But both of these only have tweeters and midrange drivers, not woofers, if that makes any difference. the interconnects that were originally connected to the receiver for the front L&R, did you leave those in when you did the test or did you change them out? if this was the only post you made, based on it, i'd say it was the interconnects or the receiver that caused the problems. as for the speakers the drivers are not that critical. the speaker is designed with crossovers to send the correct signals where they need to go within the spec of their design. as long as they get the correct amplified signal (which would come from the receiver/pre-amp out to the power amp out to the speaker) they should play within their limitations. also, does/did the amp have any funny (other than the brand new) smell? |
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 18, 2013 23:14:10 GMT -5
Thanks for all the help. Here's where I stand so far(I'm going through troubleshooting on the Polk forums also so pardon me if I start confusing one conversation with the other)... I didn't see any change in the lights on the XPA 5. I hooked up my rear surrounds (FXI A6s) in the front positions, and they sound normal. I also tried the center channel as the left front, and it sounded normal. But both of these only have tweeters and midrange drivers, not woofers, if that makes any difference. the interconnects that were originally connected to the receiver for the front L&R, did you leave those in when you did the test or did you change them out? if this was the only post you made, based on it, i'd say it was the interconnects or the receiver that caused the problems. as for the speakers the drivers are not that critical. the speaker is designed with crossovers to send the correct signals where they need to go within the spec of their design. as long as they get the correct amplified signal (which would come from the receiver/pre-amp out to the power amp out to the speaker) they should play within their limitations. also, does/did the amp have any funny (other than the brand new) smell? I'm not 100% sure what you refer to as the interconnects - the rca that connects the receiver to the amp? Either way, when doing the test with the rears as fronts, I totally disconnected the Emotiva and hooked everything back up as it was before. I used the same speaker wire in each channel as was there before, and during the Emotiva. And the rear, in place of the front, works normally. I haven't noticed any unusual smell, and I've been right up close to it, being behind the stand unhooking and rehooking stuff. |
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Post by garbulky on Jan 18, 2013 23:22:28 GMT -5
Yes the rca's that connect reciever to amp. I would reccomend solardads advice to. Use the wire that worked on the surround channels and put them on the front channel output.
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traider79
Sensei
Getting used to new look
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Post by traider79 on Jan 19, 2013 0:30:28 GMT -5
It could be the negative and positive wires going from amp to speakers were touching and when you turned it up shorted/popped something.
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Post by faceste on Jan 19, 2013 0:57:14 GMT -5
Do you have the jumpers in place on the input terminals of the front left and right speakers? These should not be removed unless you are bi-wiring or bi-amping your speakers as one set of terminals is for the mid range tweeter and the other set is for the woofers.
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Post by jhayman on Jan 19, 2013 4:05:05 GMT -5
g42 It sound like your Yamaha amp setting is not set correctly..
Go into your settings in the Yamaha and change your amp to 7.1 or another setting..
Something like that happened to me and I eventually found out it was the Yamaha amp setting..
my main speakers sounded all muffled but surrounds played fine..
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 19, 2013 14:57:17 GMT -5
Thanks for the suggestions. Do you have the jumpers in place on the input terminals of the front left and right speakers? These should not be removed unless you are bi-wiring or bi-amping your speakers as one set of terminals is for the mid range tweeter and the other set is for the woofers. The jumpers are in place. |
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 19, 2013 14:58:04 GMT -5
g42 It sound like your Yamaha amp setting is not set correctly.. Go into your settings in the Yamaha and change your amp to 7.1 or another setting.. Something like that happened to me and I eventually found out it was the Yamaha amp setting.. my main speakers sounded all muffled but surrounds played fine.. I hope to hell that all that's wrong is a setting on the receiver, but I've been through it back to front and can't find anything that makes any difference. |
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g42
Minor Hero
Posts: 29
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Post by g42 on Jan 19, 2013 14:58:36 GMT -5
It could be the negative and positive wires going from amp to speakers were touching and when you turned it up shorted/popped something. Possible, but both fronts at the exact same time? |
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