I would agree with Dawgcatching. I owned the Linbrook Signature for a couple of years as well, and still own the Linbrook SuperTowers along with a pair of Decade D1s. The D1s are faster, throw a larger soundstage, and really excel in speed and clarity -- they seem to have more 'air' around the singer and instruments. The Linbrooks in general are warmer sounding, with a slight bloom to them. You might read my review of the D1s on Agon here as I detailed my comparison of the SuperTowers and the D1s (I actually preferred the SuperTowers to the Linbrook Signatures). Both lines are excellent sounding -- comes down to personal preference.
Bret.
Bret.