FOSI AUDIO GR70 Tube headphone amplifier Black

The Fosi Audio GR70 is a compact tube headphone amplifier and Hi-Fi preamplifier that combines warm, analog sound with modern precision. Equipped with four tubes (2 × 5654W + 2 × 6J4), it delivers a rich and detailed sound. The GR70 features independent bass and treble control, RCA inputs/outputs, and dual headphone jacks (3.5mm and 6.35mm). Ideal for music lovers and audiophiles. Key features: Tube headphone amplifier and Hi-Fi preamplifier in one Four tubes: 2 × 5654W + 2 × 6J4 (replaceable) RCA input and output with volume control 3.5mm and 6.35mm front headphone jacks Independent bass and treble control Suitable for headphones from 16 Ω – 300 Ω External 24V power supply included Sturdy black metal casing Perfect for Hi-Fi use, gaming, or studio audio