Sennheiser HMEC 306 用户手册

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Technical data

HMEC 305

앚HMEC 305-C

앚HMEC 322

앚HMDC 322

Headphones

Transducer principle

dynamic

Ear coupling

circumaural, closed

Frequency response

45–15,000 Hz

Nominal impedance active/passive

300/150 

Ω

, mono

앚 50/35 

Ω

, mono

Attenuation (active and passive)

> 25 – 40 dB

Max. sound pressure level

120 dB (

±

 5%)

Contact pressure

approx. 10 N

Microphone incl. preamplifier

Transducer principle

electret mic capsule,

앚 dynamic mic capsule,

noise-compensated,

앚 noise-compensated,

MKE 45-1

앚 M-87/AIC

Frequency response

300–5,000 Hz

앚 500–4,000 Hz

Sensitivity

–

앚 1.8–4 

µ

V / 74 dB at 5 

Ω

Max. sound pressure level

120 dB

앚 –

Min. terminating impedance

150 

Ω

앚 –

Output voltage

400 mV 

±

 3 dB at 114 dB (as per RTCA/DO 214)

앚 –

Supply voltage

typ. 16 V DC (8 – 16 V DC, approx. 8 – 25 mA, as per RTCA/DO 214)

앚 –