technical parameter:
1. Power supply: AC100V~240V50/60Hz
2. Power consumption Standard <240 W
3. Frequency response 50--18000 Hz (±3dB)
4. Signal-to-noise ratio >80 dB(A)
5. Dynamic range >90 dB
6. Total harmonic distortion less than 0.5% @1KHz
7. Channel crosstalk >80 dB .
