Nobsound F2 HiFi Single-Ended Class A Tube Amplifier

True Class A Tube Warmth: Enjoy the rich, smooth tone of a single-ended Class A vacuum tube amp. F2 brings lifelike detail and natural dynamics to your home setup, perfect for relaxed, immersive listening with matched speakers. Tube Rolling Friendly Design: All tubes are pluggable, letting you fine-tune the sound. Default with 5U4G, 6SN7GT and 6CA7 tubes. Enjoy the freedom to personalize tone and texture based on your gear and musical taste. Built with Audiophile-Grade Parts: From a robust 160W transformer with Japan Z11 steel core to ALPS precision potentiometer and gold-plated terminals, F2 uses premium parts to reduce noise and elevate musical detail, bringing out the best in every track.