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DS50 USER MANUAL
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DSP processing
The built in DSP module is a high quality four input, two output DSP processor with all the
neccessary features for a professional amplifier. The unit features two analogue and one two
channel AES/EBU inputs with full configuration and real-time monitoring via PC controlled by
Ethernet and USB interface.
Two channel AES/EBU input
Two XLR-3 AES/EBU connectors for input and buffered output are mounted at the rear.
Dual auto-negotiation RJ45 ports
An internal high performance 10/100Mbps Ethernet switch module provides a simple network
connection to your workgroup or a server.
Switched mode power supply
The amplifier stages are individual powered by a low weight high efficiency high power audio
SMPS, optimized from the first phase of design to final impletation to realize the low EMI signature
required of the most demanding audio applications.
Soft Start
The soft start circuit is active when the DS50 is turned on. The mains inrush current, which
normally is in excess of 100 A is limited to a safe value. However, take care not to switch on
too many DS50 amplifiers at the same time, or you risk that the main fuses of your distribution
may trip.
Class D operation
The high performance class D output stages features a flat frequency response irrespective
of load impedance, nearly frequency-independent distortion behaviour and very low radiated and
conducted EMI.
DDC
DDC (Dynamic Damping Control) is a special way of measuring the cone movement of a
loudspeaker. The voltage induced in the voice coil is sensed and fed back to the amplifier
’s
feedback circuit. Hence, a virtually infinite damping is achieved, which results in an exceptionally
tight sound production.
DC fan
The built in DC fan has a continuous variable speed. Its control circuit monitors the temperature
of the output devices and the temperature of the power supply. The speed of the fan is calculated
out of this information. This system ensures that the fan always runs at optimum speed and
thus produces less noise.
Temperature, DC, HF and Short Circuit Protection
The amplifier and the loudspeakers are protected against all possible damages.
