MC3008-ABSE VALVE INTEGRATED AMPLIFIER (CLASS-A) Specification:Output Impedance:40W×2Output Impedance:4Ω,8ΩInput Voltage:350mvOutput Impedance:100KDistortion Factor:≤1%Signal-to-Noises:91dBPower Dissipation:300WInputs:2 GroupsOutputs:2 GroupsFrequency:18Hz - 30KHz±1dBVacuum Tubes:805BSE×2 300B ×2 ECC83 ×2 ECC82 ×2Volume:61L×53W×44H(cm)Weight:43kgThe amplifier delivers pure class A amplification and the circuits are built around 2A3 (300B) and 805 tubes. The design ensures a linear amplification of the high frequencies with a good midrange and the added bonus of a firm and powerful bass as typically found in this tube configuration. The sound stage appears wide open with a good positioning. The user can choose between high and low sensitivity input. The amplifier can drive effortless speakers between 100 to 300W . MC3008-AB Standard edition