Groove Tube 6L6 GE Duet - Matched

Groove Tube GT-6L6-GED-M- Matched Power Tubes

Matched tube sets dramatically improve sustain by eliminating phase cancellation ,which occurs when dissimilar tones coming from unmatched tubes are combined and cancel out certain frequencies. They also improved harmonic balance, meaning all the notes you play will have the same amplitude with no weak or dull spots in your tone. Your amp will give you longer life, since balanced tube sets reduce stress that occurs when a stronger tube has to work harder to make up for a weaker tube. Your output transformer will actually run cooler, because matched tube sets drive the output transformer evenly.

Amplifier tubes don't last forever. Why not plan ahead and get new tubes in advance? Matched Groove Tubes will make your amp sound better and last long, and you'll be happier knowing you've got great tubes. You could save your present tubes as backups.