I suspect a collapsed spider may be what I’m dealing with on my AR3a’s. Mine are the Alnico cloth woofers and when pushing in on the pair, one is responding as it should. The other center seems to be rubbing and looks to be cocked a bit to the left and maybe hitting voice coil. I’ve not pulled the woofer and after reading through “Repairing AR3a” pdf, there doesn’t seem to be instructions to fix voice coil problems. Is there options to fix, if this is the case?