Protections & Installations - Ahuja XDA-7002 Operation Manual

Dual channel class d amplifier 2400w + 2400w rms
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• Typical Applications
+ Connect the Left output of the Audio mixing console
to the channel A input of Amplifier-1 (XDA-7002).
+ Connect the 6.3mm jack input of channel A in
Amplifier-1 to the XLR input channel A of Amplifier-2
(XDA-7002).
+ The inputs can be wired as per fig. 1 & 2 (Input
connections for Balanced and Unbalanced Mode).
+ For connecting 4 nos. of Line Array cabinets,
connect
2
nos. in parallel on outputs A
another
2 nos. in parallel on output B of mplifier-1
(XDA-7002). The resultant impedance of each
group of
two L
ine rrays is 4 o
A
+ Connect SWX-2100 on each channel output A & B of
Amplifier-2 (XDA-7002).
Switch the Stereo/Mono switch of each
+
and 2 to Mono mode.
+ For Amplifier-1, keep the Low Pass filter switch in
OFF position. For Amplifer-2 keep the Low Pass
filter switch in either 80 Hz or 120 Hz positions.
+ This installation of two Subwoofers SWX-2100 and
four Line Arrays connected to 2 x XDA-7002, is
LEFT STACK of Line Array.
+ Connect the Right output of the Audio mixing
console to the channel A input of Amplifier-3 (XDA-
7002).
+ Connect the 6.3mm jack input of channel A in
Amplifier-3 to the XLR input channel A of Amplifier-4
(XDA-7002).
• Protections & Installations
Thermal Protections
Output Devices/Transformer
In case of excessive heating of the output devices
or transformer, the thermal protection circuits will
bring the audio signal to mute status. Onset of
thermal protection circuit is indicated by glowing of
TEMP LEDs (yellow) in each channel. To restore
normal operating conditions, it is recommended to
switch off the amplifier for cooling and then switch
ON again after cooling and checking the speaker
connections.
DC, RFI Protection
Inbuilt circuits are provided to protect the
loudspeakers from any offset DC voltages. Also
suppression filters at primary and secondary power
supplies have been inbuilt, to reduce some RF
interference.
XDA-7002
and connect
A
hm
.
Amplifier-1
12
The inputs can be wired as per fig. 1 & 2
+
connections for Balanced and Unbalanced Mode).
+ For connecting 4 nos. of Line Array cabinets,
connect
2
nos. in parallel on outputs A and connect
another 2 nos. in parallel on output B of Amplifier-3
(XDA-7002). The resultant impedance of each
group of two Line Arrays is 4 o
+ Connect SWX-2100 on each channel output A & B of
Amplifier-4 (XDA-7002).
+ Switch the Stereo/Mono switch of each Amplifier-3
and 4 to Mono mode.
+ For Amplifier-3, keep the Low Pass filter switch in
OFF position. For Amplifer-4 keep the Low Pass
filter switch in either 80 Hz or 120 Hz positions.
+ This installation of two Subwoofers SWX-2100 and
four Line Arrays connected to 2 x XDA-7002, is
RIGHT STACK of Line Array.
+ Finally adjustment of output levels will be by their
respectively volume controls of each channel of
Amplifier-1, 2, 3 and 4.
+ Any adjustments in the tonal quality of the sound,
if required, can be made from the audio mixing
console.
+ Operate each Amplifier below the threshold of clip
LED glow.
Overload / Short Circuit Protection
Protection circuit is provided in both channels for
the safety of output devices in case of overload or
mismatch of impedances at the outputs. This circuit
brings the input signals to mute condition, and set
will be in protect mode. To reset, switch OFF the
amplifier for few seconds, remove the short circuit
or overload and than switch ON for normal
operation.
Fuses/CIRCUIT PROTECTOR
a.
1 × 16 A Circuit Protector for AC mains.
b.
4 × 16 (T 16A L) fuses for +ve and -ve DC
supply
(Input
hm
.

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