Ahuja LXA-7600 Manual Download Page 9

8

• Setup & Operations

LXA-7600

Stereo Mode Configuration

In STEREO mode, both channels A & B are fully independent of each other. The balanced / unbalanced inputs 
can be connected either to a stereo signal source or two independent mono signal sources. Each channel can 
separately drive loudspeaker loads of 8/4/2 ohms.

+

 Adjust the individual volume controls of each 
channel on the front panel to obtain the desired 
output level.

+

 The signal indicator LEDs glow to indicate the 
presence of signal at the output terminals.

+

Adjust the input signal level below the threshold of 
clip LED glow.

+

To select STEREO mode, keep the slide switch, 
provided at rear panel, in STEREO position.

+

 Connect a speaker system on the output terminal of 
each channel. It is recommended to use the 
speakon connectors and wire these as per fig. 3 

(Output Connections for Stereo / Mono Mode)

.

+

 Connect the Left and Right outputs of a mixer to 
channel A and B inputs of the amplifier respectively. 
Inputs can be wired as per fig. 1 & 2 

(Input 

Connections for Balanced and Unbalanced Mode)

.

9

• Setup & Operations…

LXA-7600

+

 To select MONO mode, keep the slide switch, 
provided at rear panel, in MONO position.

+

 Connect a speaker system on the output terminal of 
each channel. It is recommended to use the 
speakon connectors and wire these as per fig. 3 

(Output Connections for Stereo / Mono Mode)

.

+

 Connect the line output of a mixer to channel A 
input of the amplifier. Input can be wired as per fig. 
1 & 2 

(Input Connections for Balanced and 

Unbalanced Mode)

.

+

The desired output levels of the A & B channels are 

adjustable by individual control of channel A & B 
respectively.

+

 The signal indicator LEDs glow to indicate the 
presence of signal.

+

Operate the amplifier below the onset of clip LED 
glow. Continuous clip LED glow may push amplifier 
into protect mode.

When operating in MONO mode, the signal source should be connected to the balanced / unbalanced input of 

channel A only

. Both channels provide similar output to their respective loudspeakers. Each channel can 

separately drive loudspeaker loads of 8/4/2 ohms.

Multiple 

Speaker System (4

W

)

Multiple 

Speaker System (4

W

)

CH. B Output

CH. A Output

CD  Player

AMX-1412

PA Mixer

Microphones

R

Play Input

Line Output

L

LXA-7600

 Wireless Microphone

CH. B Input

CH. A Input

Mono Mode Configuration

CH. A Input

CD  Player

PA Mixer

Microphones

Play Input

Line Output

LXA-7600

Multiple 

Speaker System (4

W

)

Multiple 

Speaker System (4

W

)

 Wireless Microphone

CH. B Output

CH. A Output

Summary of Contents for LXA-7600

Page 1: ...al thoroughly before making connections and turning on the power Following the instructions in this manual will enable you to obtain optimum performance from your new AHUJA Direct Coupled Amplifier 8 Thank you for purchasing the AHUJA Direct Coupled Amplifier 8 Please retain this manual for future reference 7600 ...

Page 2: ...nter the set Do not clean with liquids or aerosols Retain the Instructions Please retain this Instruction Manual for future reference l To reduce the risk of electric shock do not remove the top cover No user serviceable parts inside Refer all servicing to qualified personnel only Operation on Generator When operating this set on a generator make sure the set is switched off till the generator vol...

Page 3: ... 4 Setup Operations 8 Tips for Safe Operation 10 Typical Applications 11 Protections Installations 13 Trouble Shooting 14 Front Panel Controls Features 5 Rear Panel Controls Features 6 Input Output Connections 7 Specifications 16 Table of Contents 3 LXA 7600 ...

Page 4: ...h input level signal Balanced Unbalanced input signal through parallel XLR and 6 3mm stereo phone jack in both channels Slide switch selection of Mono Stereo Bridge Mode provided on rear panel Switchable ground lift to break the unwanted ground loops Heavy duty high current toroidal transformer which provides excellent regulation and minimises hum noise Indicator LEDs for Signal Clip Temperature o...

Page 5: ...ill remain at mute status till the devices cool down to normal temperature Switch OFF the amplifier to cool down and then switch ON to continue 6 Volume Control for Channel B Indicate the presence of signal in channel A and B respectively 8 CLIPLevel LEDs for ChannelA B 7 Protect Indicator LEDs for ChannelA B 4 Signal Indicator LEDs for ChannelA B This LED glows when the amplifier is switched ON 2...

Page 6: ... opening This F XLR connector accepts the balanced unbalanced signals to drive the channel A in stereo mode and channel A B if used in mono and bridge mode operation Inputs can be wired as per fig 1 2 Input Connections for Balanced and Unbalanced Mode Slide switch to select the input sensitivity between 0 775V 1 23V It is suggested to use 1 23V sensitivity if programme signal is fed from a mixer 1...

Page 7: ...d Mode Output Connections Stereo Mono Mode Output Connections Bridge Mode 3 Pin Male XLR 6 3 mm Mono Phone Plug Shield Ground Ground Speakon Cable Connector Output Channel A Speakon Cable Connector Output Channel A Speakon Cable Connector Output Channel B 6 3 mm Stereo Phone Plug 3 2 1 Signal Shield 2 1 3 Speakon Cable Connector Inside View Speaker 8W 4W Speakon Cable Connector Inside View 8W 4W S...

Page 8: ...st the input signal level below the threshold of clip LED glow To select STEREO mode keep the slide switch provided at rear panel in STEREO position Connect a speaker system on the output terminal of each channel It is recommended to use the speakon connectors and wire these as per fig 3 Output Connections for Stereo Mono Mode Connect the Left and Right outputs of a mixer to channel A and B inputs...

Page 9: ...re adjustable by individual control of channel A B respectively The signal indicator LEDs glow to indicate the presence of signal Operate the amplifier below the onset of clip LED glow Continuous clip LED glow may push amplifier into protect mode When operating in MONO mode the signal source should be connected to the balanced unbalanced input of channel A only Both channels provide similar output...

Page 10: ...f air This is a fan cooled amplifier Bridge Mode Configuration Operate the amplifier below the clip LED glow The signal indicator LEDs glow to indicate the presence of signal at the output terminals To select bridge mode keep the slide switch provided at rear in BRIDGE position The desired output levels of both the channels are adjustable by volume control of channel A only Connect a speaker syste...

Page 11: ... B in amplifier 1 LXA 3200 to control the level of their respective SPX 1200 Also adjust the volume control of channel A B in amplifier 2 LXA 7600 to control the levels of their respective SWX 2600 Operate the amplifier in such a way the clip LED should not blink continuously Continuously clip LED glow may bring amplifier into protect mode The speakon is the preferred choice for connections but if...

Page 12: ...600 4W RIGHT STACK Line Array 2 Arrays in Parallel 4W 2 Arrays in Parallel 4W Line Array 2 Arrays in Parallel 4W 2 Arrays in Parallel 4W L R Amplifier 1 LXA 6000 Mono Mode Amplifier 2 LXA 7600 Mono Mode Amplifier 3 LXA 6000 Mono Mode Amplifier 4 LXA 7600 Mono Mode CH A Input CH A Input CH A Input CH A Input CH A Output CH A Output CH A Output CH A Output CH B Output CH B Output CH B Output CH B Ou...

Page 13: ... A 2 nos in parallel on output B of mplifier 1 LXA 6000 The resultant impedance of each group of ine rrays is 4 o two L A hm Connect SWX 2600 on each channel outputA B of Amplifier 2 LXA 7600 Switch the Stereo Mono Bridge switch of each Amplifier 1 and 2 to Mono mode ForAmplifier 1 LXA 6000 keep the Low Pass filter switch in OFF position For Amplifer 2 keep the Low Pass filter switch in either 80 ...

Page 14: ...ay cause tripping of main switch on front pannel Indication Condition No power to the amplifier Trouble Shooting ON CLIP PROTECT SIGNAL TEMP ON CLIP PROTECT SIGNAL TEMP The installed amplifier should be well supported by the side support channels as well as rigidly fixed on to the rack through the two rack mount side brackets duly fitted with U type handles as shown in the figure below In order to...

Page 15: ...rol slowly for the desired output The amplifier may be in mute mode due to speaker impedance mismatch or output short circuit Check the speaker impedance and speaker wiring for stray strands or breaks in the insulation Indication CLIP PROTECT SIGNAL TEMP ON CLIP PROTECT SIGNAL TEMP Check if the fan is working proper ventilation is provided and output connections are as recommended remove the fault...

Page 16: ...d DC fan and 2 x Variable Speed DC Fan with Power Consumption Rated 9000VA 220 240V 50 60Hz Temperature Sensing Weight 39 50kg approx AC Magnetic Circuit Breaker 20A Front Panel Controls 2 41 step level Attenuators AHUJA RADIOS 215 Okhla Industrial Estate New Delhi 110 020 INDIA Tel 91 11 26831549 41612474 Fax 91 11 26847287 E mail ahuja ahujaradios com admin ahujaradios com Website www ahujaradio...

Reviews: