2 Introduction
The Stage Accompany DS20 is a dual channel, digital power amplifier and comprimises the
following components:
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Balanced input stages.
Two digital amplifiers wich deliver each 440W into 8 ohms, 700W into 4 ohms and
64-bit 96kHz high quality DSP controller
1200W into 2 ohms.
Advanced protection circuits.
The audio inputs and link outputs are connected internally without electronics. This is done to
prevent any loss of sound quality. With an input impedance of 25 kohms, it is posible to connect
a maximum of 30 DS20 amplifiers to a 600 ohms source like a mixing console. If more than
30 units need to be connected to a single source, a seperate signal driver must be used.
The DS20 is protected against the connection of speaker impedances less than 2 ohms or even
short circuiting of the output. In this fault condition the power supply lines to the amplifier
module will be interrupted.
The DS20 has a number of features, including:
Class D operation.
Variable speed DC fan.
Switched mode power supply.
Dual auto-negotiation RJ45 ports.
DSP processing.
Two channel AES/EBU input.
Soft start to reduce power on inrush current.
Temperature, DC, HF and short circuit protection.
INTRODUCTION
stage accompany
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DS20 USER MANUAL
2-1
