<p><b>Technical Specs:</b></p> <p> <b>Input Model: </b>RCA-In , Bluetooth V4.0 Aptx</p> <p><b> Amplifier Output:</b> 8ohm 18Wx2 , 4ohm 30Wx2</p> <p><b>Tube Model: </b>6N3 ( Can be replace as 6H3N, 5670 )</p> <p><b>Power Amp Model:</b> D1875 x 2</p> <p><b>SNR: </b>87dB</p> <p><b>Frequency Response: </b>22Hz-17kHz</p> <p><b>Input Impedance: </b>47k ohm</p> <p><b>Input Sensitivity: </b>300mA</p> <p><b>Output Voltage: </b>100-120V 60Hz</p> <p><b>Headphone Output:  </b></p> <p> 32ohm 0.66V~140mW </p> <p> 64ohm 1.2V~230mW</p> <p> 150ohm 2.4V~380mW</p> <p> 300ohm 3.8V ~480mW  </p> <p><br></p> <p></p> <p><b>Package included:  </b></p> <p>Amplifier Unit, Power Cord, Line-In Cable, 6N3 Tube, 6.5mm to 3.5mm Earphone jack converter, User Manual</p> <p><br></p> <p><b>Features:</b></p> <p><b><i>Built-in V4.0 Aptx Bluetooth</i></b></p> <p>Tube Stereo Amplifier is compatible with all Bluetooth enabled devices. This Bluetooth can minimize the audio and video delay and output music wirelessly within a range of 33 feet. </p> <p></p> <p><b><i>Class AB Amplifier</i></b></p> <p>From the point of view of efficiency ratio and fidelity, this amplifier at a reasonable price is a good choice, you can enjoy the wonderful music.</p> <p></p> <p><b><i>Simple Operation</i></b></p> <p>The function Keys of the Hybrid Desktop Amp are designed to operate easily. It is a perfect gift for anyone.</p> <p></p> <p><b><i>Suitable for Multi-places</i></b></p> <p>Home /Office/Outdoor Party/Kalaok Event/Music Restaurant</p>