Loyola Enterprises

A veteran and minority owned SDB Certified Business.


DPP Series

757.498.6118 Ext - 109DPP4004 - Call for pricing - 4 amp Power Supply
757.498.6118 Ext - 109DPP4012 - Call for pricing - 12 amp Power Supply


PDFDPP Series Specifications (pdf)

PDFDPP Series Manual (pdf)

The switch-mode power supply rack units DPP4004 and 4012 are specially designed to supply Dynacord ProAnnounce installations with the operational voltage of 24 V. They manage the power delivery to ProAnnounce systems and work in conjunction with the DEM series battery units to provide fail safe system operation under any conditions. They can also be used to remotely control (on/off) several functions. All aspects of managing the switching between mains and battery supply is performed automatically.

The DPP4004 is a 4 amp supply and can serve most smaller installations up to 10-15 zones with limited external accessories. For larger systems, the 12 amp DPP4012 has ample capacity to deliver the power required for those extensive complex ProAnnounce installations. Both models constantly communicate with the main DPM4000 unit through the RS485 data line to manage power delivery and monitor the mains supply health.


  • 19" rack size with 3.46" height
  • Primary sync switch-mode power supply; supports any 24 V DC modules in PA-systems
  • Covered mains switch
  • Status indicator LEDs (mains and battery)
  • Smooth initial current inrush
  • Short circuit protected
  • Forced ventilation
  • Mains voltage 104-127 / 207-253 VAC; internally switchable
  • Remote output for the remote switching of power amplifiers
  • Emergency power supply via battery input connector
  • Switched mains output, max. 1 A
  • Delayed control output for the release of alarm-gong and summing modules
  • Direct output, 24 V max. 4 A / 12 A
  • Switched 24 V output for the connection of modules
  • Continuous emergency power supply via external battery modules
  • Output for the connection of modules that need persistent power supply (e.g. DPM 4000/4001); max. 4 A / 12 A
  • Output for power fail recognition

Operational Voltage 230 V AC ±10%
Mains Frequency Range 50–60 Hz
Power Consumption - idling ≤20 VA
Power Consumption - nominal ≤120 VA ≤360 VA
Battery Voltage 24 V (-10%/+30%)
Current Consumption - idling ≤0.17 A
Current Consumption - nominal ≤4.1 A ≤12.1 A
Current Power Handling Capacity 1 A
Nominal Output Voltage 24 V
Nominal Output Current 4 A 12 A
Residual Voltage Standing Wave < 100 mV pp
Mains Stabilization ±1%
Safety EN60065
Operational Temperature Range +5 °C to +40 °C
Humidity 25% to 75%
Air Pressure 86 kPa to 106 kPa
Dimensions (HxWxD) 8.8 x 48.3 x 33.0 cm (3.46" x 19.0" x 13.0")
Weight 7 kg (15.4 lbs)
For pricing options and packages, contact us at
757.498.6118 Ext - 109, Or