Product details

• 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 ESS9028Q2M 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 Creativity: 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.

SPECIFICATIONS

Inputs:

1x USB-C

1x Optical Toslink

1x Coaxial

Bluetooth 5.1

Outputs:

1x Stereo RCA

1x Jack 3.5mm headphone output

Channels: Stereo (2)

SNR: 103dB

Dynamic range: 104dB

THD: ≤ 0.03%

Headphone impedance: 32Ω-300Ω

Headphone output power: 300mW @ 16Ω / 250mW @ 32Ω / 50mW @ 250Ω / 40mW @ 300Ω

Frequency response: 20Hz-20kHz (±1dB)

Supported sampling rates: PCM up to 32bit 384kHz / DSD up to DSD256

Bluetooth chips: Qualcomm QCC3031

Bluetooth version 5.1

Max Bluetooth range 10m (clear of obstacles)

Supply voltage: 12V DC

Dimensions: 200 x 180 x 60mm

Weight: 800g

Package

1x Fosi Audio GR40

1x Bluetooth antenna

2x JAN5654W tubes

2x Decorative rings

1x Power adapter