Many budget dongles use the CX31993 chip but pair it with sub-par capacitors, poorly shielded cables, or inadequate power management, resulting in the "hiss" or "muddy" sound some users report. 2. CX31993 Fixes: Resolving Common Issues If you are experiencing issues with your dongle, here are the best fixes: Fix A: The "Background Hiss" Fix (Impedance Mismatch) If you hear a subtle hiss when no music is playing, the
If your CX31993 dongle is stuttering, hissing, or failing to play high-resolution files, implement the following fixes. Fix 1: The "Order of Insertion" Power Optimization
ensures the system automatically switches to the DAC upon plugging it in. Static/Hiss Prevention: cx31993 datasheet fix better
If the device stops working mid-song or isn't recognized by your phone: AUDIOCULAR Conexant CX Pro CX31993 USB-C DAC & Amp
Unlocking Superior Audio: The Ultimate Go to product viewer dialog for this item. Datasheet Fix & Better Performance Guide The Go to product viewer dialog for this item. Many budget dongles use the CX31993 chip but
: Pairing the dongle with high-purity copper-silver plated cables can help balance the vivid high-frequency details with better mid-frequency cohesion. Core Specs at a Glance Are these no name dac on AliExpress with cx31993 are good?
To help narrow down the best solution for your setup, let me know: Fix 1: The "Order of Insertion" Power Optimization
| Feature | Standard CX31993 Dongle (e.g., JCALLY JM6) | CX31993 + MAX97220 Dongle (e.g., JCALLY JM6 Pro / Audiocular) | DIY / Implementer (Knowledge-Based Advantage) | | :--- | :--- | :--- | :--- | | | Ultra-budget, IEM/sensitive headphone users. | Users with less efficient headphones. | Tinkerers, developers, and system integrators. | | Output Voltage | ~1Vrms (line-level) | ~2Vrms (high-gain) | Controllable via external circuitry. | | Performance Trade-off | Quietest noise floor; best for sensitive IEMs. | More power for difficult loads; potential hiss with sensitive IEMs. | Potential for maximal performance. | | "Fix Better" Potential | Fix low power by adding an external amp. | Fix hissing by adding passive inline attenuators. | Fix initial hardware configuration with datasheet register settings. |
in system logs, which can be useful for driver troubleshooting or firmware patching in Linux/Android environments. Build Quality Issues