Product Details

Fosi Audio GR40 Tube Preamplifier with DAC, Stereo Headphone Amplifier 3.5mm Home Audio for Active Speakers/Headphones, Digital to Analog Audio Converter Preamp with Bluetooth and USB/Opt/CoaxMultifunctional DAC Preamplifier:

The GR40 is a versatile tube DAC preamplifier and headphone amplifier in one, it supports Bluetooth/USB/Optical/Coaxial inputs and active speakers/3.5mm headphone output, with a priority mode for headphones
High-Resolution Decoding: With the ES9028Q2M DAC chip, the preamplifier offers superior audio quality and flexibility. The USB sampling rate supports 32Bit/384kHz and DSD256, making an effective noise reduction to ensure lossless audio every time
Advanced Bluetooth with Low Latency:

Featuring the QCC3031 Bluetooth module, it supports aptX, aptX-HD, and aptX-LL codecs to provide detailed and clean audio sound. Also, you can get a relaxed experience with low latency when watching movies
Compact yet Capable: With its compact form and a combination of preamp volume, bass, and treble controls, the stereo preamplifier produces a sweeter, more organic sound while preserving the midrange and treble frequencies that make music
User-Friendly Design: The digital-to-analog audio converter GR40 is designed with user convenience at its core, allowing you to toggle between different audio inputs and restore Bluetooth-a real Plug-and-plug DAC preamplifier without any driver

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

What's in the box
1 x FOSI Audio GR40
1 X Bluetooth Antennae
2 x Decorative Rings
2 x 5725W Vacuum Tubes
1 x Power Supply
1 x User Manual