| SMSL Audio D100 DAC & Headphone Amplifier Specifications | |
| DAC Chip | ESS ES9081 |
| USB Interface | XMOS XU-316 |
| Oscillators | NDK Crystal |
| Inputs | USB, Toslink Optical, Coaxial SPDIF |
| Outputs | RCA Line Out, 6.35mm Headphone Output, 4.4mm Balanced Headphone Output |
| Line Output Level | 2Vrms |
| Headphone Output Power | 2 × 400mW @ 32Ω 2 × 105mW @ 150Ω 2 × 50mW @ 300Ω |
| Total Harmonic Distortion + Noise (THD+N) | Line Output: 0.00035% 6.35mm Headphone Output: 0.00055% 4.4mm Balanced Headphone Output: 0.00062% |
| Signal-to-Noise Ratio (SNR) | Line Output: 129dB 6.35mm Headphone Output: 116dB 4.4mm Balanced Headphone Output: 116dB |
| USB Transmission | Asynchronous |
| Operating System Compatibility | Windows, macOS, Linux |
| MQA Decoder | Supported via USB, Toslink Optical, and Coaxial SPDIF |
| Supported Sampling Rates | USB: Up to 32-bit/768kHz, DSD512, DSD DoP256 Coaxial / Toslink: Up to 24-bit/192kHz, DSD DoP64 |