Groove Tubes Gold Series GT-6L6-RD-M Russian Matched Power Tubes Duet, Medium (4 - 7)

Groove Tubes

  • $7599


These Groove Tubes Gold Series GT-6L6-R Matched Power Tubes are Russian made, same as the 5881, but matched in the GT system. These are a very sturdy and reliable tube, with slightly less power and a more aggressive edge when pushed into distortion.

Low, medium, and high style descriptions refer to break up modes of the tube for an overdriven guitar signal. High-rated tubes break up slow and have the highest amount of headroom, while low-rated tubes break up easier and have the least headroom, yielding a heavier, harder distortion. Medium-rated tubes fall in between.


  • Medium 4 - 7
  • Normal performance
  • Great dynamic range/attack
  • Best all around rating type for all styles of playing

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