Sennheiser HDV 820

Maximum Output PowerApproximately 480 mW @ 1 kHz and 600 Ohms load at the XLR-4 output
Frequency Response10 Hz to 100 kHz
Crosstalk / AttenuationMinimum 93 dB @ 1 kHz
Total Harmonic Distortion (THD) + N<0.001%
GainUnbalanced Input/XLR-4 Output: Adjustable 14, 22, 30, 38, and 46 dB
Balanced Input/XLR-4 Output: 16 dB
Dynamic Range >115 dB @ 600 Ohms load (A-weighted)
Power Requirements 100 – 200 VAC, 50 – 60 Hz
Power Consumption12 W nominal (2 x 300 Ohms headphones connected to the 4.4 mm outputs)
18 W maximum (2 x 16 Ohms headphones connected to the 4.4 mm outputs)
Temperature RangeOperation: 41 to 113°F (5 to 45°C)
Storage: -40 to 158°F (-20 to 70°C)
HumidityOperation: 10 to 80%
Storage: 10 to 90%
Dimensions (L x H x W)8.8 x 1.7 x 12″ (224 x 44 x 306 mm)
Weight5.0 lb (2.25 kg)