• 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.

Highlight:

• Input:Bluetooth, USB, Optical, Coaxial

• Output:RCA, 3.5mm Headphone Output

• Channel:2.0

• SNR:≥103dB

• Dynamic Range:104dB

• Headphone Impedance:32Ω-300Ω

• Headphone Outout Power:
  300mW@16Ω250mW@32Ω
  50mW@250Ω
  40mW@300Ω

• Frequency Response:20Hz-20kHz(±1dB)

• Sampling Rtae:PCM 32bit/384kHz; DSD256

• Bluetooth Version:5.1

• Bluetooth Connection Distance:≥10m

• Bluetooth Transmission Format:SBC, AAC, aptX, aptX HD, aptX LL

• Voltage Range:DC 12V

Package Include:

*GR40

*6J1 Vacuum Tube*2

*Decorative Ring*2

*12V Power Adapter

*Bluetooth Antenna

*User Manual