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Page 9 of 24

SX-Series Operation Manual REV01 0820

G - AC Power Inlet

20A Neutrik Powercon® inlet for detachable connection.

I - Speaker Output Section

Neutrik Speakon® and Binding Post connector per channel 

connect to loudspeakers.

H - Cooling Fan Outlet

Outlet for cooling air flow. Do not block or cover this outlet

J - DIP Switches

DIP switches for Mode and Sensitivity setup.

K - Analog Input Section

Balanced Analog Inputs and Loop-Through Outputs for each 

channel. A 3-pin female XLR connector for each channel in-

put and two 3-pin male XLR output connectors are provided 

(one per channel). The signal at these connectors is paralle-

led with the input signal for feeding the input signal to other 

amplifiers.

A - Level and Signal Indicators

LEDs indicate signal presence and level as follows:

-20dB green  = -20dB below rated output

-10dB green  = -10dB below rated output

- 7dB green  = -7dB below rated output

- 3dB green  = -3dB below rated output

- 1dB green  = -1dB below rated output

  0dB yellow  =  rated output

+1dB yellow  =  1dB over rated output

+2dB yellow  =  2dB over rated output

Clip red 

= clipped signal detected at Input or Output

B - Protect Mode

Indicator Illuminates when the amplifier output has stopped 

operating.

C - Power CH 1/2 

Indicator Illuminates when power supply is activated for 

channel 1/2.

D - Cooling Vent Grille

Provides cooling air flow ventilation from front to back. Do 

not block or cover these vents.

E - Gain Control

Output level control for each channel.

F - Power Switch

Power LED´s Illuminate when the amplifier is connected to 

the mains power supply and switched on.

7.) CONTROLS AND INDICATORS

7.1) SX-25000 Front Panel

CH A

CH B

POWER

PROTECT

ON

OFF

D

A

C

E

D

F

B C

B

ON

1 2

9 10

MAINS IN

OUT A+B

OUT B

OUT B

B=1 1

+ -

/

B=2 2

+ -

/

A=1 1

+ -

/

OUT A

PIN1=GND  (Ground) / PIN2=SIG+(HOT) / PIN3=SIG- (Cold)

Serial Number:

CH-A LINK

CH-A IN

CH-B LINK

CH-B IN

MODE

SENSITIVITY

STEREO

10

9

CHA

CHA

CHB

CHB

ON ON

2

1

ON ON

2

1

ON ON

2

1

ON ON

2

1

ON ON

2,0V 1,4V 1,0V 0,775V

PARALLEL

I

G

J

K

H

H

H

7.2) SX-25000 Back Panel

Summary of Contents for SX-25000

Page 1: ...4 acoustic com SX Series Operation Manual REV01 0820 Pro Audio Germany 4 acoustic Operation Manual SX 25000 SX 44000 SX 46000...

Page 2: ...Page 9 7 2 SX 25000 Back Panel Page 9 7 3 SX 44000 SX 46000 Front Panel Page 10 7 4 SX 44000 SX 46000 Back Panel Page 10 7 5 SX 25000 DIP Switch Setting Page 11 7 6 SX 44000 SX 46000 DIP Switch Setti...

Page 3: ...When the unit is installed in a cabinet or a shelf make sure that it has sufficient space on all sides to allow for proper ventilation 50 cm from the front and rear Ventilation Openings To completely...

Page 4: ...in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally...

Page 5: ...f treatment and recovery of electronic equip ment WEEE in order to reduce the amount of WEEE that is being disposed of in land fill site All of our products are marked with the WEEE symbol this indica...

Page 6: ...ma and theme parks For safe installation and use of this amplifier please study this operation manual thoroughly to become acquainted with the basic configuration and control options available It prov...

Page 7: ...re they are offered for recycling 4 1 Unpacking Checking For Shipping Damage 5 1 Installing Your Amplifier Before you begin make sure your amplifier is disconnected from the power source The common in...

Page 8: ...ON 2 1 ON ON 2 1 ON ON 2 1 ON ON 2 0V 1 4V 1 0V 0 775V PARALLEL 44 50 483 32 438 32 385 12 50 ON OFF CH A CH B CH C CH D PARALLEL BRIDGE PARALLEL BRIDGE PROTECT PROTECT ON 1 2 3 4 5 6 7 8 9 10 MAINS...

Page 9: ...put 3dB green 3dB below rated output 1dB green 1dB below rated output 0dB yellow rated output 1dB yellow 1dB over rated output 2dB yellow 2dB over rated output Clip red clipped signal detected at Inpu...

Page 10: ...inates when the amplifier output channel has stopped operating C Power CH 1 2 and CH 3 4 Indicator green Illuminates when power supply is activated for channel pair 1 2 or 3 4 D Bridge Mode CH 1 2 and...

Page 11: ...2 1 ON ON 2 1 ON ON 2 1 ON ON 2 1 ON ON 2 0V 1 4V 1 0V 0 775V PARALLEL The two channel model SX 25000 has control options for the Input sensitivity and the signal input mode of the XLR input sockets C...

Page 12: ...ut Socket CHA connected CHB Input Socket CHB connected CHC Input Socket CHD connected CHD 5 6 Input Socket CHA connected CHA 7 8 9 10 Input Socket CHA connected CHB Input Socket CHB connected CHC Inpu...

Page 13: ...ercon plug with the amplifier as shown in figure 8 1 before connecting the power cord with the Mains supply The Powercon Connector should be never connect or disconnect if the amplifier is switched on...

Page 14: ...and noise being induced in the signal cables gets higher as closer this two groups of cable are To prevent the risk of overdriving and damage transducers always turn off the entire sound system befor...

Page 15: ...ting with banana plugs spade lugs or bare wire SX 25000 only Select the appropriate size of wire based on the distance from amplifier to speaker Distance Wire Size up to 10 Meter 1 5mm up to 30 Meter...

Page 16: ...re 9 1 Only SX 25000 Connect Channel 1 loudspeaker s positive lead to Channel 1 positive red terminal of amp repeat for negative Repeat Channel 2 wiring as for Channel 1 Speakon outputs figure 9 2 To...

Page 17: ...bwoofer and Mid High cabinet Maintain proper polarity on output and input connectors Use Class 2 output wiring IMPORTANT Turn off the amplifier and unplug its power cord INPUTS Connect analog input wi...

Page 18: ...er 1 1 or 2 2 at the subwoofer 2 Wire Patch Cable 2 1 at the ampli er 1 1 or 2 2 at the subwoofer 9 3 Subwoofer Setup in Bridge Mode SX 44000 and SX 46000 only Subwoofer setup in bridge mode Maintain...

Page 19: ...1 1 2 3 4 5 6 7 8 9 10 MODE SENSITIVITY STEREO 6 5 CHC CHC CHD CHD ON ON 4 3 CHA CHC CHB CHD ON ON 2 1 ON ON 2 1 ON ON 2 1 ON ON 2 1 ON ON 2 0V 1 4V 1 0V 0 775VBRIDGE PARALLEL CHA 10 9 8 7 CHA CHB CHB...

Page 20: ...8 7 CHA CHB CHB CHB CHB CHC CHC ON ON ON ON Parallel Mode CHA is internal connected with CHB 9 10 CHB is not internal connected with CHC 7 8 CHC is internal connected with CHD 5 6 Figure 9 6 Two Input...

Page 21: ...able 1 1 CH A 1 1 2 2 CH A MID HIGH CH B SUB 1 1 2 2 1 1 2 2 1 1 2 2 9 6 Stereo System Setup 2 subwoofer and 2 Mid High cabinets SX 44000 and SX 46000 Stereo system setup with four channel amplifier a...

Page 22: ...set amount of gain The function of the input level potenti ometer typically is to adjust the signal level coming into the amplifier s input stage Even with the input level potentiometer turned down th...

Page 23: ...n stereo or parallel mode For the output power it means that double voltage could theoretically increase the output power 4 times In real life some technical issues avoid that the output power increas...

Page 24: ...e 20k Ohm Balanced 10k Ohm Unbalanced Front Control Power switch Gain control Rear Control Sensitivity Switch Mode Switch LED Indicators Signal VU Meter Protect Parallel Signal VU Meter Protect Parall...

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