Fosi Audio GR40 Vacuum Tube Preamp/Headphone Amp with DAC Equipped with the ES9028Q2M DAC, the GR40 offers pristine sound quality through multiple input options, and the added tube warmth enriches the audio with a classic, organic touch. Combining Vintage Warmth with Modern Clarity The GR40 supports USB, optical, coaxial, and Bluetooth inputs, making it compatible with a wide range of audio sources. The device includes input mode indicators for easy selection. With high-resolution DSD support, it delivers exceptional sound quality. Input: Bluetooth, USB, Optical, Coaxial Output: RCA, 3.5mm Headphone Output SNR≥103dB; THD＜0.03%; Power Supply: 12V 1.5A Bluetooth Codecs: SBC, AAC, aptX, aptX HD, aptX LL Tube Preamp/Headphone Amp with DAC Classic tube amplification delivers natural warmth and harmonic richness In the Same Series and Form Factor We’ve added bass, treble adjustment, and bluetooth connectivity for exceptional sound quality.
