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#1
10-09-2017, 08:35 AM
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Speaker problem
My guitar speaker has really muddy low volume, when I crank the amp it blasts for only for a second and then goes back to low volume. Its an old Rola Celestion G12-30 I just installed in my Ampeg Jet.
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___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M Last edited by Hurricane Bob; 10-09-2017 at 08:43 AM. 
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#2
10-09-2017, 08:51 AM
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Sounds like a questionable connection somewhere. I'd start at the amp and work my way down the chain from cable to speaker, wiggling lines and looking for an intermittent location. It could even be the cable at the backside of the terminal post on the speaker. If you can't find it, I'd bet one of the leads to the voice coil has become intermittent.
Bob
__________________
"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website)
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#3
10-09-2017, 09:25 AM
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I see there are 2 wires from the speaker that attach to the terminals. Could it be that those solder joints have failed? Should I re-solder them and try not to get solder on the cone? Precautions?
__________________
___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M
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#4
10-09-2017, 09:32 AM
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Quote:
Bob
__________________
"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website)
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#5
10-09-2017, 05:09 PM
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re-soldered the cone to terminal wires and still the same, getting sound but low volume and muddy. Does it need to be re-coned? very frustrated now
__________________
___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M
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#6
10-09-2017, 05:37 PM
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Now we've eliminated everything from the amp spigot to the speaker terminal. What's left is the amp and the speaker itself. If the voice coil on the speaker has been severely overheated it could develop resistance and only put out a fraction of its rated output and be fuzzy as well. It is time to try another speaker. IF you end up with the same symptoms with another speaker you'll know it is at the other end of the chain... the amp.
Bob
__________________
"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website)
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#7
10-09-2017, 05:42 PM
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put the original back in and see if it does the same. if so, then it may be a wiring problem. if not, then it is a speaker problem. how does the new one compare with the original, spec wise?
play music!
__________________
2014 Martin 00015M 2009 Martin 0015M 2008 Martin HD28 2007 Martin 000-18GE 2006 Taylor 712 2006 Fender Parlor GDP100 1978 Fender F65 1968 Gibson B25-12N Various Electrics
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#8
10-10-2017, 08:07 AM
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other speakers work with this amp so there is something wrong with this Celestion. If the voice coil is shot do you have to re-cone the whole thing?
__________________
___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M
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#9
10-10-2017, 08:13 AM
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Quote:
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#10
10-10-2017, 10:23 AM
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Quote:
Bob
__________________
"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website)
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#11
10-10-2017, 01:17 PM
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its reading 8 ohms with the meter--maybe remove the dust cover and see whats happening?
__________________
___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M
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#12
10-10-2017, 04:14 PM
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never mind, just blew it completely after hooking it up to me stereo-- was fun while it lasted.
__________________
___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M
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#13
10-10-2017, 06:52 PM
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Weber will recone any of their speakers for $25, not sure if other brands would be an upcharge or not. Even at twice that, it's still cheaper than a new speaker.
__________________
"You don't have to be great to start, but you have to start to be great." -Zig Ziglar Acoustics 2013 Guild F30 Standard 2012 Yamaha LL16 2007 Seagull S12 1991 Yairi DY 50 Electrics Epiphone Les Paul Standard Fender Am. Standard Telecaster Gibson ES-335 Gibson Firebird
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#14
10-11-2017, 08:52 AM
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when I hooked this celestion up to my beloved Yamaha receiver it blew out the channel as well. What a bummer, now I am in Mono
__________________
___________________________________________ 1933 Gibson L-00 2007 Taylor 110 2013 Taylor GS Mini 2018 Eastman E10M 1977 Sigma DR-9 2012 Republic Miniolian 2016 Recording King ROS-G9M
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