Fosi Audio P2 Headphone Amplifier Vacuum Tube Headphone Amp Mini Hi-Fi Stereo Audio with Low Ground Noise Output Protection

Excellent Sound Performance: Low ground noise, built-in output protects the circuit, no buzzing or ringing noise, Audiophile-level sound quality, exclusively designed for the customers who pursue HiFi sound; and safe for your expensive headphones. RCA and AUX Input: The compact amplifier for home theater speaker systems will drive the signal from your music player via RCA or AUX input and increase both its volume and detail. There's a selector for you to switch the mode you want. High-performance: The stereo preamp supports 32-300 ohms of headphones and comes with a 6.35mm to 3.5mm adapter. THD: ≤0.1%; SNR: ≥ 95db. Easily-swappable Tubes: The twin 6K4 tubes deliver the sound that makes an impact, and the amp can bring out the high-quality sound in most headphones. It can be replaced by 6j1/6J4/GE5654/6AK5/6*1n/ E180F/6ж9П/EF861/6688 tubes etc. What You Get: P2 Tube Amplifier x1, 5725 Tubes x2, 6.35mm to 3.5mm Adapter x1, power supply x1, user manual x1