300B

91视频破解版入口规格

Output power: 9Wx2
Frequency:20Hz--25KHz
Input Sensitivity: 500mV--2000mV
Input Impedance: 100KΩ
Output Impedance: 4Ω,8Ω
S/N: 88dB
Size(WxDxH):370(W)×250(D)×200(H)mm
Weight: 20Kgs
Front Tube: 6SN7-SE ×2 
Rear Power Tube: 300B-SE×2