Features: 4 channels headphone amplifier with separeted gain controls Inputs: RCA connector, 6.3 mm Link Output: 4 x 6.35 mm stereo Jack S/N Ratio: >98dB Input impedance: >1K Ohm (unbalanced) Output impedance: 10 Ohm min each channel. Max output power: 4 x100mW Power supply: 12-18Vdc adaptor Meter: Power led الحالة جديد