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 gear, 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 GT-5881C Power Tubes Duet features a Groove Tubes exclusive high-power 5881 "short bottle" design. This is a completely high-vacuum tube, the GT-5881C is completely stable. This tube type features a sweet tone and defined character that was a mainstay in the Fender tweed era amps of the 1950s and early 1960s. The tube's short height allows for simple use in rackmount-style amps. Available in pairs.