我聊天用的耳机，您认识吗？

f74p0704

交易区新帖推荐

  自己改了线，用来聊天，各位老大对它有了解吗？
HME 45 - CA
Technical data
Weight, without cable 140 g
Length of cable 1.8 m
Connector HME 45-CA XLR, 5-pin
Connector HME 45-KA PJ-055, 6.35 mm ø (headphone)
PJ-068, 5.25 mm ø (microphone)
Headphones
Transducer principle dynamic, open
Frequency response 20 to 18,000 Hz
Impedance 1200 Ω per system
(connected in parallel)
Sensitivity (1 kHz, 1 mW) 102 dB ± 3 dB
Total harmonic distortion < 1 %
Contact pressure approx. 1.6 N
Microphone with amplifier
Transducer principle back electret condenser microphone
Frequency response at a
distance of approx. 2 cm from
the corner of the mouth 300 to 5,000 Hz
Max. sound pressure level 120 dB
Output voltage 400 mV ± 3 dB at 114 dB SPL
(as per RTCA / DO-214)
Min. terminating impedance 150 Ω
Supply voltage for microphone 8 - 16 V DC, 8 - 25 mA
(as per RTCA / DO-214)

f74p0704

各位老大都只看不说，忍不住我自己说了，是空客A319飞机上飞行员佩戴的耳机(价值$400左右），左右单元并联（通话不需立体声），原装线材断了一股，插头也是专用5芯插头。换线并改成立体声，听音乐很普通（可能声卡不大推得动），聊天还不错（话筒灵敏度可调节），只是可惜了原装线（真是好线啊……）

fxy62425

似乎是好东西

zf1120

好东西哪里掏来的？