Questyle M15c CS43198 Portable USB DAC / Amplifier

Audio Innovation

Continuing Questyle’s legacy of high-performance audio innovation, the M15C overcomes the technical challenges of smartphone audio circuits. Equipped with four independent Current Mode Amplification SiP modules, Cirrus Logic’s flagship USB DAC, and manual gain adjustment, this compact powerhouse delivers exceptional flexibility and performance.



Comprehensive Compatibility

The Questyle M15C has been rigorously tested and optimized to ensure seamless compatibility with a wide range of devices, including iOS, HarmonyOS, Android 5.1 or above, macOS, and Windows 10 Version 18.3 or above. It’s completely driver-free, making setup effortless across all platforms.



Patented SiP Current Mode Amplifier

The M15C contains two groundbreaking "current mode" patented amplification SiP modules developed by Questyle Technology. Overall, it totals four current mode amplification engines, delivering powerful and clear sound. 



3.5mm and 4.4mm Dual Ports with Gain Adjustment

The M15C, supports 3.5mm single-ended and 4.4mm fully balanced output modes. It also features manual gain adjustment, allowing users to choose the gain mode according to personal preferences.



Specification:

DAC Capability
PCM: PCM: 44.1kHz – 384kHz (16/24/32Bit)
DSD: DSD64 (1Bit 2.8MHz), DSD128 (1Bit 5.6MHz), DSD256 (1Bit 11.2MHz)



Output Power:

- 3.5mm: RL=300Ω | Po=10.72mW & Vout (Max)=1.79Vrms
- 4.4mm: RL=300Ω | Po=42.79mW & Vout (Max)=3.58Vrms

Frequency Response: ±0.1dB (20Hz-20kHz) | ±1dB (20Hz-80kHz)
THD+N: 0.000028%
DAC: Cirrus Logic Flagship CS43198

Whats In The Box

- M15C Mobile Headphone Amplifier with DAC
- USB Type-C to Type-C Cable
- USB Type-C to Type-A Cable
- Warranty Card
- User Manual