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Help troubleshooting: 1 speaker is playing significantly lower

Greetings all-

So I connected my Sonus Faber Concertinos and for no apparent reason the left speaker is playing at a significantly lower volume than the right (with no distortion) Fyi- I never drive them hard and I meticulously power down my rig when swapping speakers. I rebooted the rig and same issue. I then swapped the SF with my Vienna Acoustic Hyden’s and they played perfectly. 
I haven’t had time for further troubleshooting, I’m curious as to what possibly could be the issue. Also, if the speaker is shot, where does one turn to for repairing a SF vintage speaker? 

thanks in advance! 
128x128jl1ny
simao's avatar
simao
1,839 posts
 
@larryi Exactly the same thing that happened to me. It retaught me the lesson of checking all connections first, unplugging and plugging all, then going through the checklist you mentioned.
jl1ny's avatar
jl1ny OP
419 posts
 
So i put the Sonus Farbers back into the system and I reversed the speaker cables as you guys recommended. Result was the left speaker was still very low. Now being that my secondary speakers (VA Haydn’s) play perfectly fine, my components are obviously not the issue. 
I don’t know much of anything about speaker builds, could the crossover have crapped out?
dekay's avatar
dekay
5,681 posts
 
Make certain that both sets of speaker cable lugs are tight on the "jumper" if you are not bi-wiring.

That's all I got.

DeKay
kenjit
1,771 posts
 
you will need to fix the crossover to fix the problem. Open it up and find out where the problem is. Its not rocket science
simao's avatar
simao
1,839 posts
 
True. It could be that something has come unsoldered, or you might find evidence of a disconnection on the crossover board itself. Be bold and see what you can find.
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