Hybrid Vacuum Tube Amplifier

Pure class "A" hybrid vacuum tube and MOSFET amplifier design60 watts of high current class "A" powerBridgeable 2 x 30 wattsFrequency response: 20Hz-20kHzInput impedance: 500K ohms/470pFWarm and natural sound13 1/2" W x 3 1/2" H x 9" D