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Help with a First Time Speaker Repair

post #1 of 4
Thread Starter 
Hello all,

About three months ago I began building myself a stereo system. I am currently running an Emotiva XDA-1 pre-amp to two Emotiva UPA-1's. The amps are connected separately to a pair of Paradigm 5se's and I use an Xbox 360 Slim as my digital audio source.

Last night I was listening to music when my left speaker suddenly made a pop and a loud humming noise. I looked at the amp connected to that speaker and the power button was flashing orange with a red LED dot as opposed to the normal blue all over. I powered everything down, waited, and tried again with the same result. I disconnected the speaker and powered up again. This time there was no flashing light so I know the amp is fine. According to the UPA-1 manual the amp went into a 'protection mode' when it detects a short circuit. I switched out the speaker wire, checked for loose strands, and hooked up a different speaker to the same amp to eliminate the possibility that the amp was faulty. The other speaker (Paradigm MiniMk3) worked just fine without tripping the amp.

My conclusion is that the inner workings of the 5se have gone bad and need to be replaced. Unfortunately, I am a new audioholic and not at all familiar with these kinds of projects. Could anyone help me figure this out in terms of what I need to do to repair my beloved 5se's? Whatever needs to be done I will likely do on both so that this doesn't happen again with the other one.

Thanks in advance,
Alabaster
post #2 of 4
Put multiple fingers around the woofer cone and gently push it forward. Does it move back and forth as if it has springs on it? Our rough and maybe not move at all? If the latter, that driver is cooked.

Next would be to open the box by putting the woofer out. Use your nose and eye to look for burned out components.

This should get you started .
post #3 of 4
My vote is either...

cooked woofer...(possibly tweeter)
or
a wire fell off something inside.
post #4 of 4
Good advice here already.

One other thing to check if you don't see anything at first; these speakers are over 15yrs old, I think? Any of the capacitors in those cabinets could be bad (I'm guessing there are two in each), and could intermittently cause shorts and make you think you have a bad driver. Most people wouldn't think about the crossovers, but with vintage stuff you have to. I just replaced all 4 caps in each of my 23yr old homemade spkrs just this week, and it solved a problem I was having that made me think I had a blown driver(s). It was driving me nuts. Let us know what you find.
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