Fender 57 Twin and trade Guitar Amplifer The Fender '57 Twin is hand-wired all tube 40 watt amp with two 12" Alnico speakers. This is a hand made amp and sounds awesome! The output tubes are (2) GT6L6 with the (4) 12AX7 preamp tubes. Features: Great Vintage Tube Sound 40 watts of 6L6 Power Two 12" Ted Weber/Eminence speakers with Alnico magnets Hand Wired Dual Rectifiers for Low Sag Vintage Power Supply Design Chrome Control Panel Dual Channel 4 Inputs (2 per Channel) Leather Strap Handle Bias Pot for Substitution of Different 6L6 Types Solid Pine Cabinet Genuine Lacquered Tweed with Striped Grille Cloth