I use Black Diamond Racing Mk 4 cones under my VTL TL5.5 with good results. It has better imaging and tightened up the bass a little. The Mk 3 cones were a little too bright for my taste.
Jim
Jim
Tube Preamp Isolation
Currently using Vibrapod cone/isolater combo under my Music Reference RM5 MKIII. I've got it on a Billy Bags rack. I've got an Audio Research LS15 on the way and am wondering what you guys use (if anything) under your tube preamp?