Power Tubes 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 (please contact customer service for these). Available as singles, duets, quartets and sextets. Solid and consistent performance; very sturdy and reliable. AKA 5881.