DAA-2351 A – Digital Audio Power Amplifier 1×250 Watts

The PADES® 2000 Digital Audio Power Amplifier DAA-2351 A is a professional fully supervised Class D 100V single power amplifier. The switching power supply integrated in the output stage block carries contributes to the additional optimization of efficiency.

The unit has protective circuit against overheating and self excitation, a mains inrush current limit and inrush noise suppression; it is short-circuit-proof and idling-proof.

The rear is fitted with Phoenix connectors. This type of amplifier is characterized by energy saving feature and low heating level of its components. By using the Digital Emergency Power Input Module , the DAA-2351 A can be operated with 24V emergency power.

The integrated, automatically activated device sleep mode enables energy consumption optimization. Operating state automatically reactivates within 50 µs after detection of user relevant events.

As a standard with professional audio equipment, the audio signal is connected via balanced inputs and outputs. In order to eliminate ground loops and other background noise, AF input transformers can be installed in the active signal paths to generate transformer-symmetrical, i.e. galvanically isolated signal transmission.

The HF shielding module protects the electronic components with system-grounded ones shielding effectively against high-frequency electromagnetic radiation.

The digital programmable matrix relay module DMS-2021 A switches 10 separate 100V signals on all poles for controlling the speaker lines. A 10-channel output load distribution matrix in service-friendly plug-in technology and a slot for the digital line measurement are integrated. the internal controller with a 32-bit 100 MHz processor communicates via CAN interface and 2 RJ-45 system connection sockets with the higher-level system for automatic configuration and data transmission, as well as for permanent self-monitoring. The switching state of the 10 freely programmable Relay is indicated by LED. Each line is impedance monitored against short and open circuit.

The digital line measurement module DMS-2022 A, in connection with a DMS-2021 A, offers the possibility of measuring each individual loudspeaker line in defined, minute-pre-selectable measurement intervals. The measuring tolerance can be set per line in 1%increments up to 25%.