Groove Tubes GT-6L6-S Medium Quartet (Quad) Tubes three chrome latches and XpressFX ensure effortless tone

and XpressFX ensure effortless tone shaping

Crafted using Yamaha’s exclusive Acoustic Design process

Flexible Applications

triple block inlays

Enhances playability by allowing smooth access to all 24 frets

Groove Tubes GT-6L6-S Medium Quartet (Quad) Tubes three chrome latches and XpressFX ensure effortless toneThe Groove Tubes GT 6L6 S Medium Output Quartet Power Tubes with generally 20 25 watts outputs often used in Groove Tubes 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 smooth, with a pronounced midrange character; strident and chesty with a super