Tube-T2 120mW HIFI Lossless 6K4 Vacuum Tube Desktop Headphone Preamplifier Amplifier

Features: Support 3.5mm jack and RCA line input, can be connected to mobile phone, CD player or music player Classic 6K4 vacuum tube amplifier, produces characteristic tube sound for your headphone Universal 6.35mm stereo jack output, comes with adapter for 3.5mm jack headphones Vacuum tube amplifier is a type of electronic amplifier that uses vacuum tubes It converts a weak electrical signal into an output signal strong enough for further processing After introduction of vacuum tube amplifier, the sound can be more natural than origin system Material: Aluminum shell Size: 100mm x 98mm x 33mm Working Voltage: DC 12V 1.5A AC Adapter: AC 100-240V Max output level: 120mW 32 Output impedance:16-300 Input sensitivity: 0.2mV Harmonic distortion: 0.1% or less Signal to noise ratio: 95dB Frequency rresponse: 20Hz-20KHz Input jack: RCA or 3.5mm Out jack: 6.3mm (come with 6.3 to 3.5mm adapter) Operation steps: Make sure the VOL turn to the minimum Install the tube into the base of the tube according to the direction(the tube is not left or light, check whether the pin is deformed before installing the tube,and the deformation can be corrected by hand) Connect the sound source that needs to be used. Connect headphone to the headphone interface Connect the DC12V power supply Turn on the power switch Rotate the knob clockwise to select the desired volume. Note: The tube is fragile, the installation of electronic tube, please try to slow vertical tube plug, avoid tube holes around the aluminum shell, prevent tube cracks or leaks. Package Included: 1 x Amplifier 2 x Tube 1 x US Power Supply 1 x 6.3 to 3.5 Jack Adapter