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About Wayne Tapia
Expertise
Home Theater Audio Cabling (from HDMI to speaker cable). DO NOT ask me car audio questions. It is not my forte, and I will not answer them.

Experience
I am a Certified Audio Engineer that also works in the A/V cabling industry. I would like to dispel the myths and outright lies about the cables that connect your home theater systems together. Here's a hint - many of you have been misled out of hundreds of dollars for cabling systems.

Organizations
ASCAP AES

Education/Credentials
Audio Recording Technology Institute Vancouver Film School

You are here: Experts > Industry > Music /Audio Equipment > Audio Systems > speaker pop/pulsing

Audio Systems - speaker pop/pulsing

Expert: Wayne Tapia - 11/5/2009

Question
I set up an older amp with two AR speakers that I rebuilt with new cones, etc. One of the speakers sometimes begins pulsing or popping. I can see the cones stressing as if heavy drumming was happening. I looks as if I did a good job of gluing in the cones, etc. so I can't figure it out. Any clue? Could it be my old Proton amp giving up. I'll add that it's not all the time that it happens.

Thanks very much. Ken

Answer
One way to test this would be to swap the left and right speakers, and see if it happens again on the same side. If it's always coming from the left channel (for example), I'd suspect the amp. If it "follows" the speaker to the other channel, it's the speaker.

My personal gut feeling from what you've described would be an issue with your amp.

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