Mini Audio Preamplifier, Tube Preamplifier, 2 Pluggable Vacuum Tube, Highly Compatible Standard RCA Interface, Knob Adjustment, for Home Theater HiFi System

【Product Details】 Using a direct heated vacuum tube, the sound is absolutely amazing due to the noise level and balance of high, mid and low frequencies, but compared to non-direct heated tubes, the sound is so elegant and beautiful that anyone can There's no getting away from its intoxicating timbre. and so beautiful that no one can escape its intoxicating timbre. 【Product Information】 Audio input: Standard stereo L/R RCA Audio output: Standard stereo L/R RCA Voltage amplification: about 6 times (15.6dB) Anode supply voltage: DC 105V Filament cathode supply voltage: DC 2.2V Frequency response: 20Hz-30KHz Signal-to-noise ratio: 90DB Input voltage: DC 5V (5. 5mm*2.5mm) Dimensions (width*depth*height): 68*116*65mm/2.68*4.57*2.56 inches Products include: 1*Tube amplifier 1*USB to DC cable 1*Instruction manual

• 【Stereo Input】Using low-noise integrated circuits and high-quality components to ensure clear and clean sound. Amplify low-level audio signals such as mobile phones and MP3 to provide sufficient output power for passive speakers.
• 【Retro Vacuum Tube Design】High-quality electronic tube, using pure ceramic and anti-oxidation contact base to ensure the best insulation and durability. Pluggable design for easy upgrade and replacement.
• 【Standard RCA interface】Can be connected to digital audio sources such as mobile phone MP3/computer/CD/DVD, effectively filtering out the digital sense of sound and improving the sound quality of power amplifiers or active speakers.
• 【Hifi Clear Sound with Tone Control】Resonable circuit and concise wiring, adopts vacuum tubes to soften the sound and filter out the digital feelings, sounds warm and sweet without noise.
• 【Exquisite Appearance】Metal shell, power switch and volume control are concentrated on one adjustment knob, making it more convenient to use.