The 6V6 wattage tube is a low output (12 to 18 watt) model often used in Fender amplifiers including Champ, Deluxe, Dual Professional, Vibro-King, Princeton, Vibrolux, etc. It produces a warm, round, soft sound rich in harmonics. You can also easily saturate it. One of the best options for rehearsal and studio amps. With its unmatched performance and reliability, the 6V6 Series tube is the tube that major amplifier manufacturers use the most.