Parameters and specifications
• Use the US original used 12AT7 / 6N4 * 1 PCS
• Frequency response: 30-40Khz (+ -1db)
• Input sensitivity: 500mV
• Residual noise <0.6mVac
• Operating voltage: AC12V-15V / 500MA
• Power supply: 3W
• Input impedance: 50K ohms
• Output impedance: 22K ohms
• Size: 123mm x 72mm x 28mm
• Weight: 0.3kg
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![](https://img.alicdn.com/imgextra/i2/247194966/T27YhtXvXaXXXXXXXX_247194966.jpg)