Golden Dragon tube rings by Duende Criatura considerably reduce distortion and self-oscillation from audiotubes. They have to be slid around the top part of the tube and where they reduce mechanical vibrations in the tube. The listener will notice improvement of three dimensional picture, a more controlled bass and cleaner soundstage.Medium Tube Ring to fit: 6080, KT90, 6L6GC etc Diameter: 36 - 39mm

Pack contains 4 Tube Rings.

In Stock | Usually Ships Next Business Day

Tube-Shop Price  $107.80