Shange SG-200 Tube USB Headphone Amplifier

Technical Specifications:
- Input Z (Input impedance) : Line Input 15 K Ω
- Output Z (Output impedance) : 10 Ω
- Line Input Sensitivity (Input Sensitivity) : 400 mV ± 50 mV
- Frequency Response (Frequency Response) : 9 Hz-160 KHz-3 dB, 30 Hz-30 KHz 0 dB
- SNR (Typical) (SNR) : > = 90 dB input without any connection, regardless of the right
- THD + N (harmonic distortion rate), 1 KHz: < 0.06%, 100 mW into 8 Ω
- SMPTE IMD: < 0.06%, 100 mW into 8 Ω
- External Power (External Power supply) : 12 VAC 800 mA, 5.5 x 2.1 Power Jack
- Usable Headphone Impedance Range (headphones Impedance Range) : 8-1000 Ω