GearNuts Essentials Make Your Axe Rock!Just so you know: the Groove Tubes tubes and sets we sell are all "Mediums." That's in the 4 to 7 range on Groove Tubes' scale. Sorry, we cannot take returns on tubes.
Groove Tubes has been manufacturing, importing, and grading quality power tubes for two decades. No stranger to GearNuts, Groove Tubes founder and energy source Aspen Pittman has paid us numerous informative (and always entertaining) visits through the years. His tireless pursuit of perfect tube tone has resulted in Groove Tubes' reputation for consistency and premium quality. Want proof? Fender tube amps now include Groove Tubes as standard toys, and true tube aficianados worldwide swear by the tubes and pro audio products Groove Tubes makes. For premium tube tone, go with Groove Tubes!
The Groove Tubes GT-6L6R Power Tubes Duet offers up what may just be the most reliable of the currently made tubes, with a little less power and a more aggressive edge when pushed into distortion. Russian made, these tubes are the same as stock 5881 power tubes, but they're specially matched by Groove Tubes, resulting in a better sound and higher reliability. Fender uses the GT-6L6R in their non-Custom Shop tube amps, and for good reason: They sound killer and they're totally dependable! Available in pairs.