Mini Vacuum Tube Phono Preamp for Turntables Phone/PC/MP3/TV Home Stereo Audio Preamp Headphone Amplifier

Audio input: MM phono/turntable / 3.5mm AUXAudio output: stereo L/R / 3.5mm headphone jackOutput level: 1.5V (input 0.775V)Max output power of headphone jack: 150mW@32ΩMatched headphone impedance: 32-300ΩInput sensitivity: 0.775VFrequency response: 20Hz-20KHz(±3dB) (AUX IN) / Standard RIAA (phono IN)S/N ratio: ≥105dBTHD: 0.2%Dimensions(W*D*H): 95*117*30mm / 3.74*4.61*1.18in (exclude tubes)Package dimensions(W*D*H): 255*215*65mm / 10.04*8.46*2.56inNet weight: 330g / 0.73lbPackage weight: 600g / 1.32lbTube preamp meets more HiFi needs:MM phono input, converts phono signal to line level signal, with low-noise integrated circuits components to ensure clear and clean sound.3.5mm AUX input, amplify the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifier or active speaker and greatly improve the sound quality.Tubes and vintage warm sound: default comes with tubes, improves everything associated with your music such as detail, transparency, immediacy, richness, dynamic, tone etc. Pluggable tube socket for tube rolling and sound-shaping, easy to pick from and alter the sound signature to 's preference.3.5mm headphone output and circuit design: T4PRO also with built-in classic headphone amp circuit(2*NE5532), easily to drive 32-300 ohm headphones.Mini size and excellent performance: all designs full of details, solid aluminum knob, potentiometer for smooth multi-level gain adjustment, grey integrated moulding aluminum alloy shell decorates with special red tube cover and knob, looks vintage and elegant. Packing List:1* Preamp2*Vacuum Tube1* 12V Power Adapter1*3.5mm to Cable

• Tube preamp meets more HiFi needs:MM phono input, converts phono signal to line level signal, with low-noise integrated circuits components to ensure clear and clean sound.
• 3.5mm AUX input, amplify the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifier or active speaker and greatly improve the sound quality.
• Tubes and vintage warm sound: default comes with tubes, improves everything associated with your music such as detail, transparency, immediacy, richness, dynamic, tone etc. Pluggable tube socket for tube rolling and sound-shaping, easy to pick from and alter the sound signature to 's preference.
• 3.5mm headphone output and circuit design: T4PRO also with built-in classic headphone amp circuit(2*NE5532), easily to drive 32-300 ohm headphones.
• Mini size and excellent performance: all designs full of details, solid aluminum knob, potentiometer for smooth multi-level gain adjustment, grey integrated moulding aluminum alloy shell decorates with special red tube cover and knob, looks vintage and elegant.