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DS20 USER MANUAL

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Function Button “MENU“
Function Button “EXIT“
LCD Display
Rotary Encoder / Function “Button Select“
Power Switch
Power Amp On, Signal and Clip LEDs (Channel 1)
Power Amp On, Signal and Clip LEDs (Channel 2)
USB connection
Fuse (Channel 2)
Fuse (Channel 1)
Output (Channel 2)
Input (Channel 2)
Output (Channel 1)
Input (Channel 1)
AES/EBU digital input
Switched Ethernet connection
AC mains connection
Output (Channel 2)
Link output (Channel 2)
Output (Channel 1)
Link output (Channel 1)
AES/EBU buffered digital output
Switched Ethernet connection

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Summary of Contents for DS20 Series

Page 1: ...DIGITAL SERIES DS20 User Manual Version 1 2 Digital Power Amplifier stage accompany R DS20 USER MANUAL...

Page 2: ...The Netherlands This manual is intended to provide information about the Stage Accompany DS20 Every effort has been made to make this manual complete and as accurate as possible However no warranty o...

Page 3: ...stage accompany R DS20 USER MANUAL Table of Contents Quick Introduction to the DS20 Introduction Connections Operation Stage Control Recommendations Technical Specifications Warranty Overview...

Page 4: ...5 4 2 1 4 3 1 4 2 2 4 3 2 4 2 3 4 3 3 4 2 4 4 3 4 4 2 5 4 3 5 4 2 6 4 3 6 4 2 7 4 3 7 4 2 8 4 3 8 4 2 9 4 3 9 Gain Gain Input Selection Delay Delay Low Pass Filter Low Pass Filter High Pass Filter Hi...

Page 5: ...k configuration 5 5 Main Window 5 6 X over window 5 7 Input Window 5 8 Output window 5 9 Compressor window 4 8 4 8 5 1 5 1 5 2 5 4 5 4 5 5 5 6 5 7 5 8 4 4 1 4 4 2 4 4 3 4 4 4 Load Preset Save Preset A...

Page 6: ...n be found in the table in paragraph 3 1 Connect the DS20 to your signal sources via the INPUT connectors Connect this amplifier to other units via the LINK outputs using short signal leads Connect yo...

Page 7: ...m 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...

Page 8: ...at frequency response irrespective Two XLR 3 AES EBU connectors for input and buffered output are mounted at the rear An internal high performance 10 100Mbps Ethernet switch module provides a simple n...

Page 9: ...xact voltages are stated at the rear of the amplifier Switching between mains voltages has to done by an authorised Stage Accompany service centre Connecting to the wrong voltage is dangerous and may...

Page 10: ...e same type and value Current Table Below the current consumption of the DS20 is tabulated for two selectable mains voltages The power consumption shown applies 1 8 of maximum output power pink noise...

Page 11: ...in meters given the cable gauge in square millimeters and the number of DS20s supplied through the cable Maximum Length ML G 22 5 N Maximum Length ML G 90 N 110 120 V Cable Gauge mm 2 1 5 2 5 4 0 6 0...

Page 12: ...he output of the preceding equipment If this is not possible connect pin 3 to pin 1 at the input of the DS20 NEUTRIK 1 2 3 220 240 V Cable Gauge mm 2 1 5 2 5 4 0 6 0 10 0 16 0 No of 1 90 225 360 540 9...

Page 13: ...Control terminals are linked together at the loudspeaker terminal The signal and DDC terminals are linked at the loudspeaker terminal A maximum damping is obtained with these connections If your speak...

Page 14: ...Since you are disabling the amplifier s feedback network signal gain will be almost infinite The smallest input signal will result in full power output with the possibility of square waves damaging y...

Page 15: ...and DDC leads as soon as possible behind the output terminals of the DS20 see figure 3 7 on this and figure 3 8 on the next page 2 2 1 1 SPEAKON NL4FC Figure 3 7 Try to avoid this way of connecting se...

Page 16: ...closures which means extra losses 2 The DDC only works for the first enclosure Splitting the leads at the amplifier output terminals solves these problems see figure 3 8 The DDC system corrects the pe...

Page 17: ...loudspeaker cable power loss Per loudspeaker impedance a table is shown in tables 3 4 to 3 7 with the proportional power loss given the loudspeaker cable gauge in square millimeters and the cable leng...

Page 18: ...1 2 8 1 7 1 1 30 14 5 9 3 7 8 6 0 4 1 2 5 1 6 40 18 5 12 0 10 2 7 8 5 4 3 3 2 1 50 22 1 14 5 12 4 9 6 6 6 4 1 2 6 100 36 2 25 4 22 1 17 5 12 4 7 8 5 0 Table 3 6 Proportional power loss as a function o...

Page 19: ...D display will show the last used preset different items press the SELECT button and rotate the encoder The DSP loudspeaker management part of the DS20 offers a wide range of tools for sound system de...

Page 20: ...s Freq 14500Hz Enabled On Type BUT 24dB Set the delay time by turning the encoder The delay time on the front will be shown in ms by Adjust the Low Pass Filter frequency by turning the rotary encoder...

Page 21: ...rclockwise until the frequency passes 20Hz complete frequency range of 20Hz to 20kHz Adjust the frequency by dialing the rotary encoder Press the rotary encoder to change the filter type Select the ty...

Page 22: ...0ms Ratio 5 00 1 Att 50ms Rel 50dB s Off Rel 500ms Gain 0dB The Compressor is a true RMS compressor Turn the rotary encoder to set the threshold The limiter is a zero attack peak limiter Only the tres...

Page 23: ...B Adjust the Low Pass Filter frequency by turning the rotary encoder You can switch the low pass filter off by turning the rotary encoder up clockwise until the frequency passes 20kHz Press the rotary...

Page 24: ...unterclockwise until the frequency passes 20Hz complete frequency range of 20Hz to 20kHz Adjust the frequency by dialing the rotary encoder Press the rotary encoder to change the filter type Select th...

Page 25: ...ompr Out 1 Compr Thr 23 00dBu Thr 12 00dBu Normal Hold 100ms Ratio 5 00 1 Att 50ms Rel 50dB s Inverted Rel 500ms Gain 0dB The Compressor is a true RMS compressor Turn the rotary encoder to set the thr...

Page 26: ...ning the rotary encoder pushing the rotary encoder confirms the character The presets contain all filter dynamics gain settings etc in other words everything that selected and moves the cursor to the...

Page 27: ...he amplifier has reached its limit The indication is correct for every connected impedance When the clip LEDs flash fre quently distortion is to be expected 4 4 3 Access Level The DS20 has the option...

Page 28: ...gital Series through USB or internet Supported operating systems The following operating systems are supported Microsoft Windows XP with Service Pack 2 32 bit and 64 bit Microsoft Windows Vista 32 bit...

Page 29: ...uble clicking the desktop icon or by selecting Start Programs Stage Accompany Stage Control MAC OS X Download the installation package from our website and open it http www stageaccompany com support...

Page 30: ...Series amp s you do the following Connect your SA Digital Series amp s to your PC using the USB port on the front or if your PC is connected to a LAN use one of the two switched 10 100Base TX Ethernet...

Page 31: ...e corresponding input window 4 Output tabs clicking on these tabs will open the corresponding output window 5 Preset choose load or store to manage presets 6 Choose a preset or name a preset in these...

Page 32: ...ons mute the corresponding channel When a channel is muted the corresponding button lights up 9 Phase invert to compensate for phase behavior of the chosen filter slope loudspeaker or loudspeaker posi...

Page 33: ...encies below or above the chosen frequency 8 Slope this determents the steepness of the filter The same types and slopes are available at the cross over settings 9 Delay the maximum delay permitted is...

Page 34: ...king on this tab will open the compressor processing window The output window gives access to an independent set of EQ s high pass low pass filters delay compressor and output limiter The buttons and...

Page 35: ...the compressor circuit begins to function The Compressor window gives access to several ways of protecting your loudspeaker system depending on type and power handling Notes The Stage Control configu...

Page 36: ...one of the same type and value A When built into a flightcase ensure yourself that there are sufficient possibilities for the plifier switched on different fuse can cause permanent damage to the ampl...

Page 37: ...and data connections 1 x Neutrik USB connector located at the front 2 x XLR 3 female connector for input signal 2 x XLR 3 male connector for signal link 4 x SpeakON NL4 for output signal 1 x 32A Powe...

Page 38: ...es hinges fans etc one year from the date of the first consumer purchase To validate warranty the purchaser must always keep the original receipt of purchase to establish the date of purchase Appeal o...

Page 39: ...the service centre or factory However Stage Accompany will pay for the costs of return shipment to the customer if repairs are covered by warranty Caution Warranty work can only be performed at autho...

Page 40: ...n Signal and Clip LEDs Channel 1 Power Amp On Signal and Clip LEDs Channel 2 USB connection Fuse Channel 2 Fuse Channel 1 Output Channel 2 Input Channel 2 Output Channel 1 Input Channel 1 AES EBU digi...

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