Wilson Benesch Torus sub is the best match I've heard. Unfortunately, rather expensive and hard to find. The Torus has the speed without the big box woofer bloat.
That said, I've always liked Quads without a sub in a medium sized room. I've owned at least five different subs used in conjunction with my box/cone speakers, and in the end, never kept any of them. Perfect integration is almost impossible to my ear. Another idea might be to try some Martin Logans that have the sub already built in.
That said, I've always liked Quads without a sub in a medium sized room. I've owned at least five different subs used in conjunction with my box/cone speakers, and in the end, never kept any of them. Perfect integration is almost impossible to my ear. Another idea might be to try some Martin Logans that have the sub already built in.