Dderham1948
Ct0517. Front of Matrix woofer is partially separated from the speaker. May only need to be glued, don't know yet.
Anyone know of a hidden stash of Matrix drivers?
Dderham1948 - this site lists parts and prices.
B&W Parts and Pricing
You can type in your model and series and it lets you know the availability of parts and their prices. They are showing out of stock on your woofers.
This is not a problem. Your woofer can be brought to any reputable speaker rehab shop in your area and repaired as new.
Loosen the bolts on the woofer slowly. When all are starting to move (not seized) cradle the bottom of the woofer and start taking the bolts out. The woofer will want to fall out from bottom toward you so cradle it. Once bolts are out the woofer may be stuck to the cabinet if its never been out. Slowly pry away with a pick. When it gives it will be all at once so keep cradling it. I put two small pieces of green painters tape on cabinet just above the woofer showing which wires blue / brown go where. For when you put it back. Bring woofer to the shop. They will repair it and inspect the spider for flabbiness. If it need replacing do all woofers same time. You will be back in business.
Your Krell preamp is not like the Amp. It doesn't go through the stress cycles of high heat/ cool down. I would have it inspected at same time. Its not a given that all capacitors wear out over XX years on a preamp. i.e. My Studer tape failed. My tech thought for sure it needed new power supply capacitors. When checked they were at new condition specs still. (knock on wood :^) .
It turned out to be another problem. let us know how u make out.
Cheers