Edwards 1B3-125


Audio Power Amplifier, 125 Watts

Availability: In Stock

Condition: New
Brand: Edwards
Status: Active
SKU: 80581
Manufacturer Part #: 1B3-125


The 1B3125 Power Amplifier is rated at 125 Watts continuous (RMS) power and it contains circuitry for 24 Vdc backup. The Amplifier mounts in a standard 19 in (483mm) rack. Output Voltage may be 25 or 70 VRMS. Supply voltage is 120/240 V, 50/60 Hz, or optionally 24-28 Vdc. The Amplifier contains electronic protection safeguards against overloads or shorted output. A thermal overload protection circuit is also included that opens the primary power circuit if the unit overheats. Both protection circuits are self restoring. The system may incorporate a Standby Amplifier as a backup against any unit failure.

Additional information

Weight 22.5 lbs
Dimensions 5.25 × 19.00 × 6.61 in



Production Status



  • 24 Vdc battery backup
  • Broad frequency response
  • Low distortion
  • Thermal circuit breaker
  • Electronic protection
  • UL listed under standards 1711, 1480 and 813
  • ULC listed


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Audio Power Amplifier; 125 Watts Model 1B3125


Edwards - Data Sheet