Specification: Tube : 12AX7 *2 , 12AU7*2 , EL34-B*4 Input impedance:100KΩ Input sensitivity:≤800mV Output power:2×25W Output impedance:4、8Ω Frequency response:15Hz-60KHz THD:1% Signal to noise ratio:88dB Power supply:AC 110V 50/60Hz…