My Tannoy supplier has loaned me a pair of the DC6T revolution speakers to try out, so I've swapped out my Jamo c803 bookshelfs and connected up the Tannoy's. However, now I'm experiencing woofer flutter when I turn up the volume whilst listening to records. More so in the right speaker than the left, but I never had that with my Jamo's. Can anyone explain why? Or what I can do to eliminate it?