Fosi Audio BOX X4 MM Phono Preamp with JAN 5725W Vacuum Tubes — 3.5mm AUX, RCA Out & Grounding Post

Bring tube warmth and precise phono-to-line conversion to your setup with the Fosi Audio BOX X4 upgraded 5725W Tube MM phono preamplifier. Designed for MM turntables, it also accepts a 3.5MM AUX input and converts phono signals to line level while minimizing low-frequency noise using high-quality components and low-noise integrated circuits. Flexible output and protection: The BOX X4 doubles as a tube headphone amplifier and preamp, providing a 3.5MM headphone/AUX jack plus RCA line outputs. A grounding post protects your turntable and helps eliminate hum. Tube compatibility and customization: Compatible with a variety of tubes — 6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. — so you can experiment with different tubes to shape the character of your stereo system. In the box: BOX X4 phono preamp, DC 12V power supply, user manual, 5725W Tube*2.