Supro USA has introduced three new amps. The 1642RT Titan 1×10″ combo has 50 watts of Class A output via 6L6 tubes, an all-tube reverb, output-tube tremolo, and the company’s HP10 hemp-cone speaker. The 1668RT Jupiter 1×12″ Supro has a switchable power-amp topology that allows the player to chose between Class A (cathode-bias) or Class AB (grid-bias) operation while setting its output at 35, 45, or 60 watts through a hemp-cone speaker. The 1675RT Rhythm Master 1×15″  is switchable between Class A (35 watts) or Class AB (45 or 60 watts) and has all-tube reverb and output-tube tremolo. All three were engineered by Bruce Zinky, Thomas Elliot, and David Koltai, and assembled at the company’s factory in New York.