Fosi GR40 Tube DAC + Bluetooth

$349.00

Fosi Audio’s GR40 is a versatile, compact stereo DAC and tube preamplifier, featuring full connectivity and Bluetooth 5.1. The digital-to-analog conversion section is based on an ESS9028Q2M DAC chip, and enables signal conversion up to PCM 32bit 384kHz and DSD256. Coupled with the tube preamplifier stage, the GR40 delivers the rich, warm sound characteristic of tube preamplifiers.

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Fosi Audio GR40 Vacuum Tube Preamp/Headphone Amp with DAC

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.

Fosi Audio GR40 Vacuum Tube Preamp/Headphone Amp with DAC

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

 

  • Multifunctional 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.
Input
  • Bluetooth
  • Optical
  • SPDIF
  • USB
Output
  • Jack 3.5mm
  • RCA
DAC / ADC Chip
  • ES9028Q2M
Max sampling rate
  • 384kHz
  • DSD256
Color
  • Black
Class
  • Tube amp
Networking
  • No
Remote Control
  • No

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