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Thanks for all your help, i will try that in cpl minutes.

William from NOLA wrote:If you can take the speaker out and place your hand behind the cone, push outward gently (and evenly), if you see it detaching, then you will know for sure.

See the cone detaching from the spider?

Well is it possible it is seperating from the spider then?

"How old are these?"

They are from around 1998


"is it like a low hard knock or a high twing sound?"

It is a lower knock, it coincides with the beat....it just started a cpl weeks ago, with no warning or reason.

Is there a way too check the alignment of the cone?

Hello, I am new to this forum, So please forgive me if this is the wrong place to post this. I have a pair of Cerwin Vega VS-100 3-way home speakers. On one of them the woofer is making a knocking noise that coincides with the beat. The louder and harder the diaphram beats, the louder and harder the...