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/Coax

Multifunctional DAC Preamplifier: The GR40 is a versatile tube DAC preamplifier and headphone amplifier in one. It supports Bluetooth, USB, Optical, and Coaxial inputs, as well as active speakers and a 3.5 mm headphone output, featuring a priority mode for headphones.
High-Resolution Decoding: Equipped with the ES9028Q2M DAC chip, this preamplifier delivers excellent audio quality and adaptability. The USB sampling rate supports 32Bit/384kHz and DSD256, offering effective noise reduction for lossless audio. Advanced Bluetooth with
Low Latency: Utilizing the QCC3031 Bluetooth module, it supports aptX, aptX-HD, and aptX-LL codecs for clear and detailed audio. It also provides a smooth, low-latency experience for movie viewing.
Compact yet Capable: With its small size and a combination of preamp volume, bass, and treble controls, this stereo preamplifier produces a warmer, more natural sound while maintaining midrange and treble frequencies.
User-Friendly Design: This digital-to-analog audio converter is designed for ease of use, allowing you to switch between different audio inputs and re-establish Bluetooth connections. It is a genuine plug-and-play DAC preamplifier that requires no drivers