Compact tube headphone amplifier and preamp with warm, detailed sound. It is equipped with four lamps (2×5654W, 2×6AC7), supports headphones of 16-300 ohms, has bass and treble adjustments, RCA input/output, power up to 300 MW at 32 ohms, aluminum housing, two headphone outputs (3.5 and 6.35 mm) and two gain modes.