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  • General
  • Feature
  • Specification
The DPAxx is a 2U high 19” rack mountable, 4-channel class-D power amplifier, transformer isolated for 100 V, 70 V and 50 V distributed loudspeaker systems. Each channel can deliver up to 250 Watt when used as separate channel or can be combined with other channels to deliver a multiple of 125 or 250 Watt. This amplifier has a dual voltage mains 110/230 VAC and a 24 VDC battery back-up input which allows it to be used in combination with a battery backup system for maximum availability and durability in an emergency evacuation system. The DPAxx amplifiers have a single power supply that shares redundancy via the BECS-150 battery charger and redundant power supply. Using an intelligent switching construction, one BECS can serve up to 7 DPA amplifiers and 3 x IDA8-units or 1 x DIVA8 with 9 slaves.. In case an internal power supply fails, the amplifier modules will automatically switched-over to the extra back-up powersupply that is provided by the BECS leaving the batteries un-touched and available for emergency cases.

Mains switch with fuse

Individual level adjusters

General fault contact (Dry contact)

Commercial use disabled contact

Lamp test input contact

DPA four 125: 4 x 125 Watt class-D power amplifier.

Can be bridge into 2 x 250W

DPA four 250: 4 x 250 Watt class-D power amplifier.

Can be bridge into 2 x 500 W

DPA single 1000: 1 x 1000 Watt class-D power amplifier.

DPAxx are 2U high, 19-inch rack mountable.

Quiescent curent in sleep mode: 30 mA (1000W)

Front panel indicators include:

General status: Mains, Battery and General health

Detailed status: Signal, Clip and Ready (Ready = out of sleep mode)

100 / 70 / 50 Volt available via terminal blocks ate the rear

Output channels can be linked into 2 x 250 W

or 2 x 500 W by daisy-chaining 50 V tapping (input on parallel)

DPAxx series combines with the BECS-150 charger and back-up supply