Features: Wada Shigeho's Style Actuating Electric Circuit Triple-pole, Class A, Single-end tube rectifying circuit and choke filtration Specially fitted with earphone outputting function, able for direct use of earphone to listen to tube amplifier Provided with functions for infrared sound volume and remote control over selection of transformation Specially fitted with pure post-stage and integrated modes, able for the function of one amplifier for two purchase Manufactured by using linked capacitance and quality metal resistance(MKP) special for audio frequency Oriented Japan-made silicon steel plate(Z11 0.35mm thick) special for audio frequency and oxygen-free enameled cooper and lacquer wire as well as special process, adopted and coiled for output transformer Specification: Power Output: 9.5W(8ohm) SNR: less than or equal to 75dB Distortion of Harmonic Wave: less than or equal to 1%(at 4W) Frequency Response: 5Hz to 35KHz (-2dB) Input Sensitivity: 0.3V during integrated input 0.6V during pure post-stage input Vacuum Tube: 300B x 2, 6SN7 x 2, 12AT7 x 2, 274B x 1 Dimension: 590 x 470 x 380 mm Gross Weight: 27.60kgs