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. Our top-of-the-range model, which will give you professional performance for years to come. The choice of many professional musicians who use Groove Tubes in their favorite amps for rehearsing and recording. These models capture the spirit and sound of tube amps made since the 1950s.