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Product Snapshot
Description
TRUTHEAR KEYX CS43131 Portable DAC & AMP
Experience true high-resolution audio anywhere with the TRUTHEAR KEYX CS43131 Portable DAC & AMP. Designed for audiophiles and music enthusiasts, the KEYX combines the acclaimed Cirrus Logic CS43131 DAC chipset with an innovative L-shaped cable-free design, delivering exceptional sound quality, superior portability, and everyday convenience.
Unlike conventional USB DAC dongles that use a short cable between the USB connector and headphone output, the KEYX integrates the 3.5mm headphone jack directly into its CNC-machined aluminium body. This unique construction improves durability, reduces cable failures, minimizes radio frequency interference (RFI), and provides a cleaner, more reliable listening experience.
Powered by the high-performance Cirrus Logic CS43131 DAC and an advanced USB controller, the KEYX delivers outstanding measurements with low distortion, ultra-low noise, high dynamic range, and excellent signal-to-noise ratio. Whether you're streaming music, gaming, watching movies, or taking calls, the KEYX ensures detailed, dynamic, and natural sound reproduction.
Supporting PCM up to 384kHz/32-bit and Native DSD64 to DSD256, the KEYX unlocks the full potential of Hi-Res Audio from smartphones, tablets, laptops, and compatible USB-C devices.
The KEYX is also designed with modern users in mind. It fully supports microphones, inline controls, and DSP-equipped earphones, making it compatible with a wide range of IEMs, headphones, gaming headsets, and streaming applications.
To further enhance your listening experience, TRUTHEAR provides access to EQTOOL.COM, a professional browser-based equalization platform that allows users to create precise EQ profiles, manage presets in the cloud, and fine-tune their sound without installing additional software.
Whether you're upgrading your smartphone's audio output or looking for a compact high-performance DAC for daily use, the TRUTHEAR KEYX delivers premium sound in an incredibly portable package.
Why Choose the TRUTHEAR KEYX?
- Premium Cirrus Logic CS43131 DAC for audiophile-grade sound
- Innovative L-shaped cable-free design
- CNC anodized aluminium housing for durability
- Low distortion and ultra-low noise performance
- Supports Hi-Res PCM & Native DSD playback
- Compatible with microphones and inline controls
- Works with Android phones, tablets, laptops, and USB-C devices
- Browser-based professional EQ platform via EQTOOL.COM
- Excellent shielding against RF interference
- Compact, lightweight, and travel-friendly
Key Features
Innovative L-Shaped Integrated Design
Unlike traditional USB DAC dongles, the KEYX eliminates the fragile connecting cable by integrating the headphone output directly into its compact L-shaped aluminium chassis. The result is improved durability, reduced interference, and a cleaner setup.
Premium Cirrus Logic CS43131 DAC
The highly regarded CS43131 DAC delivers rich detail, exceptional clarity, natural tonality, and excellent dynamic performance while maintaining extremely low power consumption.
High-Resolution Audio Playback
Enjoy studio-quality music with support for:
- PCM up to 32-bit / 384kHz
- Native DSD64, DSD128 & DSD256
Perfect for lossless streaming services and locally stored Hi-Res music.
Powerful Audio Performance
Despite its compact size, the KEYX provides ample power to drive a wide range of IEMs and efficient headphones with clean, dynamic sound and excellent channel separation.
Microphone & Inline Remote Support
Unlike many USB DACs, the KEYX fully supports microphones and inline controls, making it suitable for voice calls, gaming, meetings, and everyday communication.
Professional Browser-Based EQ
Fine-tune your sound using EQTOOL.COM, TRUTHEAR's cloud-based equalization platform offering accurate adjustments, preset management, and seamless cross-device synchronization.









