Sennheiser HMEC 460 manual Specifications, Headphones, Microphone incl. preamplifier

Specifications

Headphones

Transducer principle	dynamic
Ear coupling	circumaural, closed
Frequency response	20–20,000 Hz

Nominal impedance active/passive 400/300 Ω, mono

	600/600 Ω, stereo
Attenuation (active/passive)
	> 25–40 dB
Contact pressure	approx. 8 N

Microphone incl. preamplifier

Transducer principle	pre-polarized condenser microphone capsule,
	noise-compensating, MKE 45-1
Frequency response
	300–5,000 Hz
Max. sound pressure level	120 dB
Min. terminating impedance	150 Ω
Output voltage
	400 mV ± 3 dB at 114 dB (as per RTCA/DO 214)
Supply voltage
	typ. 16 VDC (8-16 VDC, approx. 8-25 mA, as per
	RTCA/DO 214)

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