Open Box (Mint) 

Groove Tubes Gold Series GT-6L6-CHP Matched Power Tubes  Medium (4-7 GT Rating) Quartet

GT exclusive design high-performance 6L6 Black Plate with heat sink wings like the GT E34LS and KT88SV. Very strong, smooth, and linear. Fantastic in Fender Hot Rod Deluxe, Deville, etc.

Country of origin: China

Low-rated tubes have early break-up and distortion, wide range and softer attack good for rock and blues solos. Medium-rated tubes offer normal performance, great dynamic range/attack and are the best all around rating type for all styles of playing. High-rated tubes have the most dynamic range and the most clean power/less break-up for power players, jazz guitarists and bass amps.