Preamplifier Treble Base Adjustment Tube Amplifier Speaker Device Power Adapter. Power supply: DC12V/1A, more than 12V will burn out the diode.
Frequency response range: 20Hz-20kHz (±3db). Control:Potentiometer knob and toggle switch. Audio input/ Audio output:Gold-plated RCA. 1 x DC12V 1A Power Adapter.This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "savenow_469" and is located in this country: CN. This item can be shipped worldwide.