Features: UL and TR switchable Use as integrated or power amplifier Two independent power supply MPK capacitors and quality gold resistance Specification: Power Output: 30W x2 (8 ohm, TR) 60W x2 (8 ohm, UL) Frequency Response: 5Hz to 80KHz THD: less than or equal to 1.5% SNR: more than or equal to 90dB (A) Input Sensitivity: 0.25V (integrated amplifier), 0.6V (Power amplifier) Vacuum Tube: KT88 x4, 6SN7 x4, 12AX7 x2 Dimension: 610 x 510 x 365 mm Gross Weight: 30.00kgs