Have you contacted Vandersteen directly? They're great with service. I had a pair of 3a's with a blow mid. Sent the speaker in, they turned it around in a day and sent it back. Shipping kinda hurt, but great service and they didn't charge much for the driver rebuild. Also he tunes everything in his anachoic chamber, even after repairs. I know on some speakers he will send out drivers and instructions for disassembly.