What sub under a grand?

Ivan reminded me that I had a similar problem. Stated less well than he did, the wires from the internal amplifier to the speaker terminals had basically shifted inside the subwoofer, after about 15 years of use. So the wires actually rested close to or against the speaker cone. And only when played at loud volume they made a sound that was more like a rattle than what it really was. Opened it up, shifted the wire away from the cone and perfect.
George

Did you open up the amp or the driver? I will deff give this a shot nothing to really lose either way.

pulled the driver and amp off did not notice any obstruction or anything that looked unusual. I have the isolation feet coming in the mail we'll see if that works? my gut feeling is that it wont.either something is wrong with the sub or it just can't handle the low freq. think i'll be going with the psa sub not sure which model yet.

To my surprise the isolation feet worked. rattle is gone.

Good to hear.