<b>Specification:</b><br> Output Power:<br> 25W + 25W (RMS Triode mode)<br> 45W + 45W (RMS Ultralinear mode )<br> Harmonic distortion: 1% (1kHz)<br> Frequency response: 15Hz ~ 30kHz (-1.5dB)<br> Input Sensitivity: 280mV; 520mV (pre in)<br> Input impedance: 100KΩ<br> Output impedance: 4Ω 8Ω<br> Signal to noise ratio: 92dB<br> Left and right output balance: <0.5db<br> Power consumption: 260W<br> Tubes: 12AX7 × 1. 12AU7 × 2. KT88 × 4. 5AR4 × 1<br> Dimension (W × D × H): 410 mm × 335 mm × 198 mm<br> Net Weight: 23kg<br> Gross weight: 25kg<br> Power supply: 110V<br><br> Working conditions: Temperature: 0 ℃ ~ 40 ℃ Humidity: 20% ~ 80%<br> Storage conditions: Temperature: -20 ℃ ~ 70 ℃ Humidity: 20% ~ 90%<br><br> What are included in the package?<br> 1 x MUZISHARE X7 tube amplifier<br> 1 x Instruction manual and a circuit diagram(Schematic)<br> 1 x Infrared remote control<br> 1 x Tube protective cover <br>