Product: Dynacord DPA 4140 (36x)

Omschrijving:
Large quantity for sale, it can be used in a matrix system or as a normal 400W mono amplifier.

Sold per peace, or as a batch, €99,- exl vat a pc (€ 119.79 incl vat )

400Watt rms 4 ohm / 100V / 70V

he DPA4140 amplifier has been specially designed to ensure durable performance and reliable operation of sound reinforcement systems with several independent loudspeaker lines. The unit is best suited for paging and pre-recorded message installations, alert systems, and for general music applications in industrial enterprises, offices, multifunction halls, sport arenas, schools, churches, hotels, hospitals, super markets, cruise ships, and similar venues.

The DPA4140 amplifier can either be operated on the AC mains or connected to an external 24 V battery power source. Switching to battery operation is accomplished via an internal relay.

One input module is required for proper operation of the DPA4140. Two different versions are available. The NRS90222 is the remote control version which allows for full monitoring and control through the ProAnnounce Designer software. The other is the NRS90225 which provides only the XLR input connector and has no remote control functions available.

The DPA4140 provides the following remote monitoring functions when used with the remote modules in a ProAnnounce system:

Setting input levels.
Reading level values of the audio level controls.
Setting level offsets via virtual controllers.
Mute function (via level control).
Remote control power operation ON/OFF.
Battery operation remote control ON/OFF.
Monitoring and fault message transmission of thermal overload warnings on the mains transformer or power output stages.
Monitoring of the functioning of the power output stages via pilot tone signal.
Ground fault detection for loudspeaker lines.
Features
Supported are 115/230V AC mains as well as 24V DC emergency power source
Power amplifier DPA 4140 providing 400 W output power, idling and short-circuit protection
70V or 100V capability for constant voltage speaker lines
Full remote control and monitoring functions available (when used with optional remote modules)
Integrated standby power supply
Mains POWER ON/OFF switch
Ground lift switch
Remote-Start function for mains and battery operation with inrush current limiter protection
Power-on noise attenuation
Status-LED indicators for operation (READY), STANDBY, thermal overload (PROTECT) and occurrence of GROUND FAULT conditions at the power output
Fault message according to the IEC 849 standard
TEST button to switch between system and average operation, respectively a RESET button to restart after the occurrence of ground fault conditions
LED level meter instrument with a display range of -13 dB to 0 dB and CLIP
Integrated relays for signal call and obligatory reception
Active, temperature-controlled ventilation
Pilot tone and ground fault surveillance module according to the DIN/VDE 0800 standard
Architectural and Engineering Specifications
The remote control amplifier unit shall provide the following remote monitoring functions: Setting input levels, reading level values of the audio level controls, setting level offsets via virtual controllers, mute function (via level controls), remote control power operation ON/OFF, monitoring and fault message transmission of thermal overload warnings on the mains transformer or power output stages, monitoring of the functioning of the power output stages via pilot tone signal, and ground fault detection for loudspeaker lines.

The amplifier shall either be powered by AC mains or connected to an external 24V battery power source. Switching to battery operation shall be accomplished via an internal relay.
€99,00