CH-78
Robust, modular, and reliable
The CH-78 series hand-held microphone speaker features a robust housing that, despite its handy size, offers plenty of space for various components.
Everything is possible, from simple versions to extensively equipped devices with separate microphone and speaker capsules, volume controls, up to 3 push-to-talk buttons, LEDs, and a built-in microphone amplifier.
CH-78 with clothing clip – rear view
Electroacoustic Data
Microphone
Electroacoustic principle
Dynamic
DC resistance
200 Ω
Directional characteristic
Omnidirectional
Sensitivityrn4.5 mV/Pa (free field, no load)
Speaker
Electroacoustic principle
Dynamic
DC resistance
200 Ω
Sound pressure level
79 dB
Nominal power handling capability
0.5 W
Technical Overview
Electrical
Connectior
Without plug (open ends)
Coiled cable
35 cm – 150 cm
Mechanical
Housing
impact-resistant plastic
Weight
approx. 180 g without cable
Dimensions
114 mm x 55 mm x 30 mm
Mounting option
Clothing clip
Colour
Black
Environmental
Degree of Protection
IP40
Temperature range
Operation: -30 °C to 60 °C
Storage: -40 °C to 85 °C
Customized Models
Can be made available on request with:
- A single microphone-speaker capsule or with separate microphone and speaker capsules
- Dynamic capsules with various DC resistances
- One or two changeover contacts per button
- One or two LEDs
- Pre-mounted connectors
- Optional: built-in microphone amplifier
- Optional: button hanger
- Optional: built-in volume control
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