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Speaking of speakers
Posted by: bazookaman
Date: December 27, 2020 08:20AM
I've recently noticed that my front speakers are crackiling quite a bit during movies. They sound "staticy" at some points. Since the speakers are two "pieces" it's almost like the crossover in the woofer is failing and its sending the lower frequencies to the "incapable of handling low frequency" smaller speakers. But I have no idea. They ARE quite old. I'd say they are around 20 years old at this point.



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Re: Speaking of speakers
Posted by: Bixby
Date: December 27, 2020 10:18AM
I'd first check the surrounds of the speaker cones and make sure everything is physically intact. If the surrounds have deteriorated, the excursion during low frequencies is likely to cause distortion/crackly sounds.
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Re: Speaking of speakers
Posted by: Rolando
Date: December 27, 2020 10:30AM
I just setup my 90's era Infiniti speakers for my son. It's a 12" passive sub with crossovers and output to some smallish bookshelf speakers for the mids and highs.

I don't know if they still make passive subs with crossovers! I have seen external crossover circuits.
Have you tried plugging the speakers directly in and listening for the noise? If they make on their own, then its not the crossover.



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Re: Speaking of speakers
Posted by: bazookaman
Date: December 27, 2020 10:43AM
They've probably looked better...





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Re: Speaking of speakers
Posted by: bazookaman
Date: December 27, 2020 10:44AM
What they're connected to aren't strictly subs. They are connector to woofers. I don't think they go low enough to be considered subs. It's essentially a 3 way speaker split into two pieces.



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Re: Speaking of speakers
Posted by: NewtonMP2100
Date: December 27, 2020 11:03AM
.....pubic speaking is a major phobia, it isn't easy being a good speaker......



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Re: Speaking of speakers
Posted by: anonymouse1
Date: December 27, 2020 11:12AM
I’d google replacement surrounds for (speaker name, model). I’ve done it, it’s a bit of a pain , but worked well.

And what Rabso said-try a direct connection.



Edited 1 time(s). Last edit at 12/27/2020 11:13AM by anonymouse1.
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Re: Speaking of speakers
Posted by: bazookaman
Date: December 27, 2020 11:15AM
Clearly the speakers are messed up so that is an indication to get new ones...not fix the old ones. Yeesh!



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Re: Speaking of speakers
Posted by: Lew Zealand
Date: December 27, 2020 01:48PM
Crackly sound coming from the woofers can be due to metal fatigue on the wires which lead from the terminals on the woofer itself to the voice coil. I had a pair of Realistic Minimus 25s when I was a wee lad which, due to excessive overuse, led to metal fatigue of those wires at the spot just past the solder points. Luckily those wires were long enough that a bit of desoldering, pulling the wires just a bit farther through, and resoldering fixed them. Until I overused them for a few more years and ran out of wire. I actually bought replacement woofers from RS and continued using them. Got about 25 years of hard use out of those, perhaps the best $70 I've ever spent in my life. Maybe second to my Grado SR-60s which also lasted about 20 years of hard use.
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Re: Speaking of speakers
Posted by: pdq
Date: December 27, 2020 03:35PM
I’ve had foam-surround woofers (like in your picture) where the speaker started sounding flaky, and so I pried off the front speaker cover to find there was basically NO foam left - the cone was just flapping in the breeze. The problem is that then the voice coil attached to the speaker cone isn’t held in alignment and bangs all around the little magnetic gap when it plays. Buzz, buzz, distortion.

May not be cost-effective for you, but you can buy woofer edge surround repair kits on eBay for pretty cheap. They worked for me, and I replaced the old foam surrounds with butyl rubber ones which (I think) will be more durable.
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Re: Speaking of speakers
Posted by: Dennis S
Date: December 27, 2020 07:25PM
You can easily tell if they need refoamed by looking at them. The foam ring near the outside will be rotted. It's usually about $30 to buy the foam. Google the name of your speaker and "refoam" and you'll get lots of information. It's not hard to do.
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Re: Speaking of speakers
Posted by: N-OS X-tasy!
Date: December 27, 2020 09:04PM
I need to refoam the sub on my ProMedia set. Maybe a project for this vacation week.



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