Manufacturers description
450 Series II Desktop Microphone
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
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
Specifications
- Type
- Dynamic
- Frequency Response
- 200 to 5,000 Hz
- view larger
- 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.
Description
SHURE MICROPHONES - General Purpose and Communications
Desktop, gooseneck and handheld types for PA, Paging and communications.