MC300-A SE Vacuum tube INTEGRATED AMPLIFIER Specification:Output Power:8W×2(CLASS A)Output Impedance:4Ω,8ΩInput Voltage:300mvIutput Impedance:100KDistortion Factor:≤1%Signal-to-Noises:93dBPower Dissipation:205WInputs:4 GroupsOutputs:2 GroupsFrequency:18Hz - 30KHz±1dBVacuum Tubes:300B×2 6SN7×2 6P3×2 274B×2Volume:55L×48W×38H(cm)Weight:34Kg