Phono Preamp for Turntable MM Phonograph Stereo Audio Tube Preamplifier with Mini Hi-Fi Stereo, Gain Adjustable Function & DC 12V Power Adapter, Suitable for Record Player

WARM TIPS 1. This is only a preamp, which needs to be used with amplifiers or active speakers. 2. Tubes are not support hot-swappable, please don't replace the tubes while the machine is powered on. 3. Please see the user manual first before using, most problems you can find the answer in the user manual. Features 1. Phono BOX P4 can be use as a Phono preamp as well as a Tube Preamp, 2 in 1 function. ( AUX input is with priority). 2. Front AUX Input can connect with mobile phone/ CD / Tablet / PC while the back MM input can connect with MM turntable.

3.39 dB/42dB/45dB gain adjustable, convenient to match better with different audio signals. 4. Provide Warmth, Dynamic, Sweet tube coloration feeling with 2 6J2 tubes, tubes can be replaced for different sound feeling. 5. NO hum or buzzing, because of the optimal integrated circuit design and high quality power adapter.
Parameters:
Chip: OP
Amp: TL071+JRC2068D
Audio input: MM phono / 3.5 mm
AUX Audio output: stereo RCA
Electrical Level Output: 600mV @3mV 1KHz
SNR: 98dB
Working Voltage: DC12V
Frequency Response: Meet standard RIAA
Product Weight: 0.3 kG
THD: 0.1 % How to Use PHONO BOX P4 1. Turn the knob on OFF state. 2. Install the tube into the base of the tube according to the direction (the tube is not divided left or right, check whether the pin is deformed before installing the tube, and the deformation can be corrected by hand). 3. Connect the sound source (AUX in or MM in) with cables. 4. Connect the external equipment to the audio source output interface. 5. Connect the DC 12V power supply. 6. Rotate the switch to select the desired gear. Package Include 1 * MM PHONO Preamp 2 * 6J2 Vacuum Tubes 1 * RCA Cable 1 * Power Adapter 1 * User Manual