The Model 4S4X10 4 Input Summing Power Amplifier for Line, Intercom, Earphones or Speakers in Control Rooms, Command Posts, and Offices.

A summing amplifier sums several (weighted) voltages and outputs the average.

Applications:

  • Airports
  • Automotive Shops
  • Churches
  • Control Rooms
  • Dispatchers
  • Emergency 911 with a few building hot areas
  • Fast Food Restaurants
  • FBI, CIA, & other Law Enforcement
  • Fire Stations
  • Moving Companies
  • Police stations
  • Schools
  • Screening Rooms
  • Security Offices
  • Taxi Companies
  • Trucking Companies

PRICE:
  • $ 60 (U.S. Funds)

Specifications:

    INPUT:
  • 4 Inputs
  • Impedence: 10KΩ
    TRANSFER:
  • Bandwidth: 30Hz to 15KHz
  • Gain: 20db (x10)
  • Isolation: 80db
    OUTPUT:
  • 4 Watts Peak
  • THD: 0.25%
  • S/N: 70db
  • Capacitive Load: Up to 0.2ufd
    POWER: 
  • 120V-AC - Internal Regulated Power Supply
    SIZE:
    WEIGHT:
  • 3 lbs.