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13

CONGRESS 400 

 

2 x AXIR + SX408A

 

 

Make sure that the AXIR design column speakers which will be used in 
combination with the SX408A are switched to Low Impedance (6 

Ohm). 

This can be done by removing the front cover plate with the 

AUDAC logo very carefully. This can be done by pressing on the 
upper or lower side of this plate, or by sticking carefully a flat object 
under the cover plate (e.g. a small screwdriver). The cover plate must 
be coming loose without performing large forces. 

After the cover plate is removed, the two power tap selector 
switches are visible. 

To switch the AXIR to Low impedance, the internal switches of the 
speaker must be turned over. To reach the internal switches, the plate 
with the two power tap selectors should be removed. This can be done 
by loosening the 6 Phillips screws whereby it is attached. 

Once these screws are loose, the plate can be carefully removed out 
of the speaker. (Be careful with the wiring inside the speaker) 
Then you will see that there are two switches provided at the side 
of this plate. These switches are meant to convert the speaker for 
use in 100V or low impedance applications. 

Set these switches to Low Impedance to be used in combination to the SX408A. 
After this is done, the speaker can be assembled again as it was originally. 

Warning: 

Make sure that the two switches are always both in the same position.  

Make sure that it never occurs that one of them is on 100V and the other is in low 
impedance position.

 

 

1

00V

100V

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100V

100V

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Summary of Contents for SX408A

Page 1: ...PROFESSIONAL AUDIO EQUIPMENT SX408A Active Subwoofer System User Manual InstallationGuide SX408A AUDAC ...

Page 2: ...A U D A C P R O F E S S I O N A L A U D I O E Q U I P M E N T User Manual Installation Guide AUDAC http www audac eu info audac eu ...

Page 3: ...ER INDICATOR LED S 7 RJ45 REMOTE CONTROL CONNECTION 7 SATELLITE VOLUME CONTROL 8 SUBWOOFER VOLUME CONTROL 8 BALANCED INPUT CONNECTIONS 8 SATELLITE OUTPUT CONNECTIONS 9 POWER SWITCH 10 MAINS POWER CONNECTION 10 BLOCK DIAGRAM 11 SX408A SET SOLUTIONS 12 FESTA 400 12 CONGRESS 400 13 ADDITIONAL INFORMATION 14 PERSONAL NOTES 15 Index ...

Page 4: ...he minimum load is 4 Ohm For protection reasons a built in limiter is provided to limit the input signal when necessary This limiter consists of three separate stages one for every channel This ensures the best sound quality with the least distortion for optimal performance Power Signal and Clip LED s monitor the proper working of the integrated amplifier Besides the high efficiency of the class H...

Page 5: ...nit Do not place the unit in environments which contain high levels of dust heat moisture or vibration Do not use the unit near water or other liquids Make sure no water or other liquids can be spilled dripped or splashed on the unit This unit was developed for indoor use only Do not use it outdoors Do not place objects on top of the unit Chapter 1 ...

Page 6: ...rated by children Do not stick objects through the openings Do not open the unit risk for electrical shock CAUTION SERVICING This unit contains no user serviceable parts Refer all servicing to qualified service personnel Do not perform any servicing unless you are qualified to do so Note This product conforms to the following European Standards EN 50081 1 1992 EN 50082 1 1992 EN 60065 19 ...

Page 7: ...ter 2 2 RJ45 Remote control connection 1 Amplifier indicator LED s 3 Satellite outputs volume control 4 Subwoofer volume control 5 Balanced input connections 6 Satellite output connections 7 POWER switch 8 MAINS power connection ...

Page 8: ... This means that there is no input signal present The amplifier will switch automatically ON when an input signal is applied Signal LED This LED illuminates whenever there is a signal present at the input connectors Clip LED The SX408A has a built in limiter that prevents the outputs from overdriving When the Clip LED lights up frequently the level must be reduced because the maximum power is reac...

Page 9: ...h and low tones by using the Satellite and Subwoofer volume controls The perfect balance will depend on the application and on the location For vocal applications there will be a different ideal balance than for music applications 5 Balanced input connections These euro terminal input connections accept a balanced line level input signal An input signal can be fed from a mixing console or other si...

Page 10: ...o terminal output connections is the amplified output signal present with a frequency above 120Hz Connect these to the satellite speakers A total of 4 speakers with an impedance of 8 Ohm can be connected to these output connections The total impedance load should not be lower than 4 Ohms ...

Page 11: ...ier The input connection is performed using IEC power connectors The SX408A is factory default set to be used on 220 240 Volt AC mains networks But it can be switched to be used on 110 120 Volt AC mains networks To change the SX408A to be used on 110 120 Volt you have take out the fuse compartment and turn it over To make sure it is set to the right mains voltage check if the two arrows on the fus...

Page 12: ...11 Block Diagram Chapter 3 ...

Page 13: ...4 x WX502 SX408A Make sure that the WX502 loudspeakers which will be used in combination with the SX408A are set to 8 Ohm impedance This can be done by turning the power tap adjustment screw on the rear of the speaker to 8 Ohm Chapter 4 ...

Page 14: ...turned over To reach the internal switches the plate with the two power tap selectors should be removed This can be done by loosening the 6 Phillips screws whereby it is attached Once these screws are loose the plate can be carefully removed out of the speaker Be careful with the wiring inside the speaker Then you will see that there are two switches provided at the side of this plate These switch...

Page 15: ...ntial Sensitivity 400 mV clip led on 570 mV max output signal Max input level 1V limited by limiter Rated power Sub 100W 8 Ohm 50Hz THD 0 2 80W Top 160W 4 Ohm 1kHz 100W 8 Ohm 1kHz THD 0 2 160W Line power Standby 8W 10VA No music 18W 21VA Music 400W 530VA Full Power sine wave load Top 4 Ohm Sub 8 Ohm 60Hz 240W 320VA 1Khz 600W 740VA Signal Noise ratio Sub 100 dB Top 100 dB ...

Page 16: ...15 Personal notes ...

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