The integrated Cirrus Logic CS43131 DAC chip ensures precise signal processing and is also used in top-tier audio devices. Combined with a high-performance USB controller, it delivers low distortion and noise, a high dynamic range, and an excellent signal-to-noise ratio—ideal for everyday listening and streaming.
The unconventional L shape eliminates the typical short cable and integrates the 3.5 mm socket directly into the body of the adapter. The result is a compact, clean, and more practical solution for use with a phone or laptop, with durable construction thanks to a combination of injection molding and CNC anodized metal.
The integrated design reduces the number of joints and helps better shield high-frequency interference from surrounding devices. KEYX also supports a microphone (4-pin 3.5 mm) and offers online DSP, including tuning options via EQTOOL.COM for detailed sound adjustment.
TRUTHEAR KEYX is a portable digital-to-analog converter (DAC) in a USB-C to 3.5 mm jack design (4-pin SE+MIC). It is designed for users who want cleaner and more detailed sound when listening to music, watching videos, gaming, or during calls—without having to add additional components to the setup.
At the heart of the device is the Cirrus Logic CS43131 decoding chip complemented by a high-performance USB controller. Thanks to a thoughtfully integrated design, unwanted effects such as interference from communication devices are minimized, and the stability of the audio path in a typical mobile environment is improved.
Main advantages:
Package contents: KEYX DAC, keychain pendant, user manual.
