Sennheiser HD400 manual Hmec, HMEC 305-C, Hmdc, General data

		HMEC 305		￿HMEC 305-C	￿HMEC 322	￿HMDC 322
General data
Connecting cable			1.5 m, unilateral		￿ coiled cable, unilateral
Weight without cable
			370 g
Power supply for NoiseGard™		12–35 V DC
Current consumption	27 mA (zero signal current), max. 80 mA
Fuse			500 mA thermo fuse
Connectors
			XLR-5 for headphones,	￿ XLR-5 for headphones	￿ U-174/U jack plug for headphones and microphone,
			microphone and	￿ and microphone.	￿ XLR-3 for NoiseGard™
			NoiseGard™	￿ XLR-3 for NoiseGard™	￿
Controls			On/off switch for NoiseGard™
			Volume control for headphones
Temperature range
			Operation	–15°C ... + 55° C
			Storage	–55°C ... + 55° C
Operating time Battery pack
			with batteries (four 1.5 V AA size alkaline-manganese batteries): approx. 15 hours
			with rechargeable batteries: approx. 3 hours

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