This may or may not strike you as a concern, but what type of material (foam, rubber, cloth, etc.) are the speaker surrounds made of? Speakers from the early 90's are closing in on 15 years old and may be showing some signs of surrounds rot and may require re-foaming of the woofers.
As to what I would do, it would depend on how much budget was at my disposal.
Regards, Rich
As to what I would do, it would depend on how much budget was at my disposal.
Regards, Rich