All 4 inputs can be listened to and monitored simultaneously and each input has a separate volume control.
Each desk in an office can have the same amplifier to monitor the same 4 sound inputs.
The Model SPK-4SUM/DB9 is a listening device and not an intercom. It needs to be hard-wired with a shielded cable.
This unique unit fits comfortably on a desk and is used in emergency scenarios, fast-paced situations and control centers that need input continuously from up to 4 sources.
- Automotive Shops
- Control Rooms
- Emergency 911 with a few building hot areas
- Fast Food Restaurants
- FBI, CIA, & other Law Enforcement
- Fire Stations
- Moving Companies
- Police stations
- Screening Rooms
- Security Offices
- Taxi Companies
- Trucking Companies