2. speakers
  3. 1141687002

buzz from speaker..

Hello first thank you all that do respond. I am using at the moment a pair of sound dynamics 300ti speaker. I replaced the woofer cones around five or so months ago every thing all right at the time, now I noticed just today playing some jazz the left speaker woofer cone is buzzing on some CDs. What should I look for once I take out the cone, possibly wires touching or anything else such as crossover?
schipo
tripper
223 posts
 
One possiblity is a non-centered voice coil. If not perfectly centered, you can get mechanical noises, and worse, a dead short to your amp when the VC rubs in the magnetic gap which many amps do not tolerate well. The tolerances here are quite fine. Just because it looks OK from the front does not mean all is well on the back end. Proper suspension is everything. Good luck.
schipo OP
1,268 posts
 
Thank you all for your suggestions. I have determined that it is the speaker by switching. I was curious if it is a non-centered voice coil can this be repaired or should I just replace cone?
nathanso
25 posts
 
I recently bought a pair of Dahlquist DQ-20's. The seller claimed he had just re-foamed the woofers (himself). Upon powering them up (Aragon 8002 amp) I became aware of a mechanical buzz coming from the woofers on bass peaks. The seller told me to "check my wiring"; I knew it wasn't electrical.

I pulled the woofers and sent them to http://www.nealspeakerrepair.com to be re-foamed again. Neal told me the previous owner hadn't glued the outer edge all the way around. When I got them re-installed the buzz was gone in both speakers. And here's the kicker: The bass was far stronger than it had been when I first got the speakers.
More to discover