舒爾會議話筒 SHURE MX412S


上海視聽網--SHURE會議話筒系列產品:舒爾會議話筒 SHURE MX412S

產品介紹

MX412S: 305 mm (12 in) gooseneck microphone; includes a mute switch and an LED.

SPECIFICATIONS

Frequency Response (Figure 1)
    50 to 17,000 Hz
Polar Pattern (Figure 2)
Output Impedance (at 1000 Hz)
    Rated at 150 Ω (180 Ω actual)
Open Circuit Sensitivity (at 1 kHz, ref. 1 V/Pascal*)
    Cardioid: –35.0 dB (17.8 mV)
    Supercardioid: –33.5 dB (21.1 mV)
    Omnidirectional: –27.5 dB (42.2 mV)
      All settings –12 dB at 0 gain
      *1 Pascal = 94 dB SPL
Maximum SPL (1 kHz at 1% THD, 1 kΩ load)
    Cardioid: 124.2 dB
    Supercardioid: 122.7 dB
    Omnidirectional: 116.7 dB
      All settings +6 dB at 0 gain
Equivalent Output Noise (A-weighted)
    Cardioid: 28.0 dB SPL
    Supercardioid: 26.5 dB SPL
    Omnidirectional: 20.5 dB SPL
Signal to Noise Ratio (referenced at 94 dB SPL)
    Cardioid: 66.0 dB
    Supercardioid: 67.5 dB
    Omnidirectional: 73.5 dB
Dynamic Range at 1 kΩ Load
    96.2 dB
      100 dB at 0 gain
Common Mode Rejection
    45.0 dB minimum
Mute Switch Attenuation (switched models only)
    50.0 dB minimum
Preamplifier Output Clipping Level (1% THD)
    –6.0 dBV (0.5 V)
      –12 dB at 0 gain
Polarity
    Positive sound pressure on diaphragm produces positive
    voltage on pin 2 relative to pin 3 of output connector.
Power Requirements
    11 to 52 Vdc phantom, 2.0 mA
Environmental Requirements
    Operating Temperature Range: –18° C to 57° C (0° F to 135° F)
    Relative Humidity: 0 to 95%
Dimensions (Figure 3)

產品價格

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關于舒爾SHURE

SHURE(舒爾)是一間專業話筒、無線系統、混音器、 音頻處理器及個人監聽系統等設備之生產商。她們的產品不只限于專業用途, 其部份產品更適合廣大家用者。

舒爾的音響創新歷史已歷經80余載,最初制作優質話筒和音響產品的強烈熱情已演變成了一種執著。 勿庸置疑,舒爾將繼續在全球范圍內為優質話筒和音響產品樹立行業標準。

With a history of audio innovation spanning over 80 years, Shure has turned a passion for making great microphones and audio electronics into an obsession. No wonder Shure continues to set the worldwide industry standard for superior microphones and audio electronics.

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