Hi Ivica,

Thanks for the illustration, I definitely will not do anything that will permanently damaged the woofer.

Just for discussion, there are other fabric surround that may fit, I have seen it before. The picture I have attached in my previous mail is a case in point. It is twin roll, and narrow enough to fit the original foam gap.

Most likely I will experiment with bi-amping and power amps to get the sound I want.

Cheers.