Key Features
- Convenient Desktop Design
- Push- or Lift-to-Talk Operation
- Selectable Output Impedance
- Dynamic Capsule Requires No Power Source
- Omnidirectional Polar Pattern
- 80 Hz to 12 kHz Frequency Response
- 7' Unterminated Four-Conductor Cable
- Durable Cycolac Housing & Die-Cast Base
- Non-Skid Feet
Description
Omnidirectional Dynamic Desktop Microphone with Locking Push-to-Talk Switch
The 878HL-2 is designed for fixed or temporary paging applications. The frequency response is broad with a gentle rise in the high midrange for speech intelligibility. 7' cable provided with stripped and tinned ends.
The Astatic Model 878HL is a duel impedance, omindirectional dynamic desk microphone offering modern styling and features in a rugged Cycolac housing for all industrial and commercial public address and paging applications. The Model 878HL has a slide switch for low or high impedance selection. The wide band frequency response is smooth and peak free, with a slight rise above 2K Hz to give that "natural" highly intelligible sound. The microphone and relay switching is accomplished with long life DPDT professional leaf switches and choice of either a simple push-to-talk bar with locking capabilities, or lift-to-talk operation, to give years of dependable, trouble free performance. The lift-to-talk operation can be disabled with a slide switch located under the microphone base.
The 878HL is manufactured to take normal abuse and retain its performance over a long life. Four molded "feet", non-skid, non-marring, permanently resilient, are located under the zinc die cast base.
Supplied with 2.1m (7 ft.) of four conductor, two shielded cable, the Model 878HL microphone circuit is wired normally open.
Features:
- Omnidirectional Pick-up
- Push-to-talk with locking switch
- Stripped and tined cable
- Hi or Low impedance output
- External Contact Closure
Specifications:
- Operating Principal: Moving Coil Dynamic
- Polar Pattern: Omnidirectional
- Frequency Response: 50Hz - 12KHz
- Hi-Z Sensitivity: -43dBV (7.2 mV) @ 1 Pa
- Impedance: 40K ohms
- Lo-Z Impedance: 400 ohms
- Sensitivity: -60dBV (1 mV) @ 1 Pa