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Product Code: 450 Series
II
Desktop Microphone
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The Shure Model 450 Series II is a high output dynamic
desktop microphone designed for paging and dispatching
applications. This extremely rugged microphone features an
omnidirectional pickup pattern and a frequency response tailored
for optimum speech intelligibility. The 450 Series II microphone
includes an impedance selection switch and a locking press-to-talk
switch.
450 Series II includes impedance selection switch and press-to-talk
switch
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| Features |
- Fingertip control bar or lock-on
option for hands-free operation
- Omnidirectional
dynamic
- Frequency response: 200 to 5,000
Hz
- Adjustable Height Dual
Impedance
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| Specifications |
- Type : Dynamic
- Frequency Response : 200 to 5,000
Hz
- Polar Pattern :
Omnidirectional
- Impedance (at 1,000 Hz)
High Impedance: 30,000 ohms
Low Impedance: 225 ohms
- Recommended Load Impedance
High Impedance: 100,000 ohms
Low Impedance: 1,000 ohms
- Output Level (at 1,000 Hz, Open
Circuit Voltage)
High Impedance: 35.0 dBV/Pa* (17.8 mV)
Low Impedance: 57.0 dBV/Pa* (1.4 mV)
*1 Pa = 94 dB SPL
- Cable : 2.1 m (7 ft.)
four-conductor, two conductors shielded,non-detachable
- Case : Two-tone gray
ARMO-DUR®
- Dimensions : See Figure
3
- Net Weight : 737 grams (1 lb., 10
oz.)
- Shipping Weight : 1020 grams (2
lb., 4 oz.)
- Switches
Locking Press-to-Talk Switch: Activates microphone circuit and an
external relay or control circuit. The microphone circuit is
normally shorted.
Impedance Selection Switch: Double-pole, double-throw slide switch
located in the base of the microphone.
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