Used Supro thunderbolt S6420 Tube Guitar Combo Amp

Classic Supro tone in a compact vintage combo, this used Thunderbolt S6420 is in good condition and delivers rich, harmonically complex tube drive with bold low end and touch-sensitive response. Featuring an all-tube design with approximately 35 watts of power, a single 15" speaker, and simple, stage-friendly controls, it’s ideal for blues, rock, and studio work where warm breakup matters. A great choice for players chasing authentic retro American sound.