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 3  FRONT PANEL

1.

PROT/STBY: 

This indicator shows two different statuses:

PROT:  protection indicator. The indicator will light up orange when the amplifier is in 
protection condition.  Protection may be because of a short-circuit in the speaker line, 
the amplifier overload and when the inside temperature is over 55ºC (131 ºF). There's 
and independent protection indicator for each channel. 

STBY: stand-by. The same indicator will light up orange when the amplifier is in stand-
by due to not detecting any sinal for more than two minutes.The indicator will switch off 
when the system detects the signal again. This function is programmable through the 
switch located on the rear panel. 

2.

CLIP:

  The clip indicator will light red when the input or output is too high. There ir an 

independent CLIP indicator for each channel 

3.

INPUT:

  The input indicator will light green when an input signal is detected. There is an 

independent input indicator for each channel. 

4.

OUTPUT:

 The output indicator will light green when there is an output signal. El indicador 

de   salida   se   iluminará   en   verde   hay   señal   de   salida.  There   is   an   independent   output 
indicator for each channel. 

5.

POWER:

 The power indicator will light blue when the equipment is on. 

6.

POWER SWITCH:

 It allows to switch the equipment on and off. 

LDA Audio Tech - Severo Ochoa Nº 31- 29590 MÁLAGA, ESPAÑA. Tlf: +34 952028805

3

User's manual: BA Series

Figure 1: BA Series Front View

Summary of Contents for BA-2250

Page 1: ...User s Manual Model BA Series...

Page 2: ......

Page 3: ...6 BLOCK DIAGRAM 7 7 MAINTENANCE 8 8 TECHNICAL SPECIFICATIONS 9 Appendix A Cable section for speaker lines 10 Figures Figure 1 BA Series Front View 3 Figure 2 BA Series Rear View 4 Figure 3 Low impedan...

Page 4: ......

Page 5: ...ve a 5 cm gap around them to allow the proper air convention 7 Never open the equipment For safety reasons the equipment should only be opened by qualified personnel 8 The equipment must be connected...

Page 6: ...hms BA 2250 or 4 ohms BA 2500 public address systems Each channel integrates a high pass filter and an automatic standby for noise gate whose operation can be activated from the rear panel 1 Universal...

Page 7: ...is function is programmable through the switch located on the rear panel 2 CLIP The clip indicator will light red when the input or output is too high There ir an independent CLIP indicator for each c...

Page 8: ...connect the low impedance speaker to these 100V ends it could damage the speaker 5 HIGH PASS FILTER The high pass filter function will activate or deactivate according to the two channel configuration...

Page 9: ...e COM terminal 5 2 High impedance speaker connection 100V To connect a low impedance speaker system 100V in parallel connect the positive side of the speaker to the 100V terminal Connect the negative...

Page 10: ...5 3 Wrong speaker connection Do not connect high and low impedance speakers simultaneously it could damage the equipment 6 www lda audiotech com Figure 5 Wrong speaker connection...

Page 11: ...6 BLOCK DIAGRAM LDA Audio Tech Severo Ochoa N 31 29590 M LAGA ESPA A Tlf 34 952028805 7 User s manual BA Series Figure 6 BA Series Block diagram...

Page 12: ...y a soft lint free cloth Disconnect the equipment from any external power source Disconnect all the external devices Keep the equipment away from any liquid Do not use aerosoles solvents or abrasive s...

Page 13: ...00V 4 2 Pin Euroblock type 3 pin connector Audio inputs 2 x Balanced Audio 1Vp 0 707Vrms 10 K 3Pin Euroblock Type Protection Over Temperature DC voltage Short circuit Overload Power supply 115 230V 50...

Page 14: ...the table Section Maximum lenght with a 5 power loss AWG mm mm2 60Wrms 120Wrms 240Wrms 480Wrms 960Wrms 6 4 11 13 3 3260 1630 810 405 200 7 3 67 10 6 2600 1300 645 320 160 8 3 26 8 35 2050 1025 510 25...

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Page 16: ...Ver 2...

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