Amplifier Bluetooth Tube Unique Preamplifier Style Powerful Components 131W-200W. Signal to noise ratio: = 80dB. Frequency response: 20Hz-20KHz + / - 2dB.Total harmonic distortion: = 0.5% (200-20kh). Electronic tube: WY-10P3 + 6K3P3. Appearance size: 35 wide 41 deep 25 high (including machine foot) / cm. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "homestore758" and is located in this country: CN. This item can be shipped worldwide.