 
     
      
      
      
    | SMSL Audio DL300 AK4499EX Chip Audio DAC | |
| Input | USB/Optical/Coaxial/Bluetooth/125 | 
| Output | RCA/XLR/6.35mm and 4.4mm headphone | 
| THD+N | 0.00006% (-124dB)(UN-WTD) | 
| HPA THD+N | 0.0001% (-120dB)(UN-WTD) | 
| Line Output Amplitude | XLR 5Vrms/RCA 2.5Vrms | 
| Headphome output power | 2Wx2(160) 1Wx2(320) | 
| Output Impedance | XLR 200Ω RCA 100Ω HPA near 0Ω | 
| HPA Gain Control | low 0dB/high +7dB | 
| Dynamic Range | XLR 132dB HPA 127dB | 
| SNR | XLR 132dB HPA 127dB | 
| USB transmission | Asynchronization | 
| USB compatibility | Windows 7/8/8.1/10/11 (Needs Driver) Mac OSX10.6 or Later、Linux (Driverless) | 
| MQA Decoder | USB/Optical/Coaxial | 
| MQA-CD Decoder | Optical/Coaxial | 
| Sampling rate & Bit Width | USB
            PCM
            44.1~768kHz(32bit) 
            2.8224~22.5792MHz(1bit) DoP DoP256 | 
| Optical / Coaxial | 44.1~192kHz(24bit) DoP DoP64 | 
| Bluetooth specification | 5.1 LDAC/apt-X HD/apt-X/AAC/SBC | 
| Power Consumption | <20W | 
| Standby power | <0.5W | 
| Size | 222x39x207mm(WxHxD) | 
| Weight | 1.54kg/3.40lb |