Great dynamics and a very sweet, punchy tone with enhanced power rating and performance. More brilliant top end and a very full, pronounced and round low-frequency output. A solid replacement for stock performance.
A medium-output power tube (generally 20-25 watts) often used in Fender professional amplifiers including the Bassman, Bandmaster, Concert, Dual Showman, Hot Rod Series, Pro Series, Super Reverb, Tremolux, Twin, Vibrolux, Super-Sonic, Blues Deluxe, Blues DeVille and others. Available in many variations, its response is round, with a pronounced midrange character; strident and chesty with a super-bright and clean, powerful punch. Perhaps the most recognized signature tone for U.S. guitar music of all styles from the '60s onward. Stocked in "medium" power ratings; also available as special orders with "low" and "high" power ratings. Available as singles, duets, quartets and sextets.
These pass every Groove Tubes premium certification for micro phonics, hum, noise floor, physical operation and performance characteristics. They also analyze and match the gain-to-distortion ratio on a dynamic basis, assuring a powerful, singing tone that is rich in harmonics and balanced for longer sustain, wider frequency response and a more musical amplification experience. Quite simply the best 8-pin pentode tubes you can buy that are specifically designed and tested for musical instrument amplification. Sold as single tubes, matched duets, quartets and sextets. Standard equipment on Fender tube amps.
Groove Tubes power tubes are matched and rated in low, medium and high output levels. Most amp manufacturers bias their amps for tubes in the "medium" range and replacement of stock tubes frequently do not require re-biasing if "mediums" are purchased. For softer feel, quicker distortion and creamier tone, They suggest "lows"; for more dynamic headroom and tighter, quicker and harder overall response, They suggest "highs". Lows and highs are more likely to require re-biasing by a qualified service technician to meet your performance preferences.