aHUJA CM-5000
Conference System
Conference Rooms m Seminar Halls = Convention Centres
Compact, Elegant & Attractive Housing.
18.5" Slim Flexible Gooseneck Microphone
with ring LED indication.
Chairman's Priority Switch provided.
Headphone Facility with Volume Control.
Auto Mic-Off Function.
50W Built-in PA Amplifier.
USB Recording 8: Playback Facility.
AC/24V DC Operation.
Hallmark of Reliability!
The Ahuja CM-5000 Conference System provides much
required sound reinforcement at meetings and conventions.
It is designed to combine elegant aesthetics with clear,
highly intelligible sound, while minimising acoustic
feedback. The system is ideal for use in conference rooms as
well as convention centres.
The CMC-5100 Chairman and CMD-5200 Delegate Units
have built-in loudspeaker and high quality sensitive electret
condenser microphone mounted on 18.5" flexible
gooseneck. The microphones are equipped with a Ring LED
indicator to show which mic is ON. Each unit has a
headphone output with volume control.
The stylish, free-standing delegate unit housing has an
angled facia incorporating the TALK switch which switches
ON the microphone.
The Chairman Unit also has a non-lockable PRIORITY switch
which interrupts the meeting and mutes the microphones of
other delegates when the Chairman so desires. Both
Chairman & Delegate units have recessed volume controls
for setting desired sound levels.
[i =
Central Amplifier
At the core of the conference system is the Central Amplifier CMA-
5400 which has a built-in 50W PA Amplifier which allows
additional external speakers to be connected, if required.
Provision is made for connecting either low impedance speakers,
or 70V / 100V speakers. The Central Amplifier has inputs for three
microphones and an auxiliary source.
The Central Amplifier also has a digital mp3 recording cum
playback facility. This enables the proceedings of the meeting to
be easily recorded, and allows prerecorded messages / speeches
to be played back through USB or SD card.
The Chairman and Delegate Units are housed in compact &
attractive housing, suitable for keeping on Boardroom
18.5” slim and flexible gooseneck microphone with bright
ring LED indicator. Highly sensitive unidirectional electret
condenser microphone which can be comfortably shared
by two delegates, if required.
Each microphone is supplied with a foam windshield which
helps in reducing breath noise and pop noise.
Automatic Mic Off function in Delegate Units. Delegate unit
microphone can be set to automatically turn OFF after
approximately 75 seconds, if not being used. This feature
can be switched OFF, if not required.
Units are designed to give extremely clear and intelligible
Headphone output with volume control is available in each
Priority function in Chairman Unit mutes all active delegate
microphones and is preceded by a chime tone.
Central Amplifier operates on 220-240V AC mains or 24V car
The Central Amplifier can deliver 50W RMS output to drive
external reinforcement speakers.
An LED array on the central amplifier can be switched to indicate
the recording level, or the output level.
Active Bass, Treble, and Master volume controls are provided for
adjusting the level 8: tonal quality of the sound through external
speakers, if connected. A LINE control is provided to adjust the
sound level in the Chairman 8: Delegate Unit speakers.
The Central Amplifier is housed in a robust metal case and is
powered from AC mains with automatic change-over facility to
24V DC battery as standby power source.
Three unbalanced Mic inputs with one Aux input provided in
the central amplifier for various user applications like
connecting wireless roving Mic, Podium Mic, A/V audio out
Send/Return facility provided in Central Amplifier for
connecting external signal processors like feedback
destroyer, compressor limiter, graphic equalizer etc. This
facility can be switched OFF, if not being used.
All the units can be connected in a bus bar arrangement with
the help of CB-45 junction box.
Provision is made to connect two separate chains of delegate
units. This allows better performance when large number of
units have to be connected.
The Central Amplifier CMA-5400 is provided with two
sets of LINE connectors i.e., LINE1 and LINE2
In case of small sized set-up of upto 20 conference units,
either LINE1 or LINE2 can be used to connect the
conference unitin closed loop.
In case the number of conference units is more than 20,
itis advisable to split the total no. of units in two groups
and connectone group to LINE1, other group to LINE2.
Each Central Amplifier is supplied with 10m connecting
cable. Each Chairman & Delegate Unit is supplied with
Automatic Mic Off Function
The microphone is automatically switched off after
approximately 75 seconds if a delegate is no longer
speaking into the mic but forgets to switch the mic OFF.
When long pause in the speech is expected before hand
or the ambient noise level is high, it is suggested to
disable this function by placing 'AUTO MIC SWITCH OFF"
switch of Central Amplifier in OFF position.
Priority Function
A priority switch on the Chairman's Unit has been
provided for seeking attention of all the delegates
during a conference. When priority switch is kept
pressed, a chime tone is heard and all the active
delegate microphones get muted. Only the Chairman's
mic remains ON. Priority function gets withdrawn when
the priority switch is released by the Chairman.
Send/ Return Jack
This feature has been provided in the Central Amplifier
for connecting an external signal processor like a
feedback destroyer or a graphic equalizer. These
external signal processors are ideal for those conference
rooms / halls which are prone to feedback and howling
problems. The external processor can be connected to
Send / Return jack socket of the Central Amplifier
Optional Accessories
© ; o , E
Connection Cable Extension Cable
10m connection cable terminated 10m extension cable terminated
with 8-pin female plugs on both with 8-pin female plug at one end
ends. and 8-pin male plug at the other
2.5m connecting cable. Additional extension cables are
available in different lengths of 5m, 10m and 20m as
optional accessories.
Installations with long cable lengths may require
additional power supply and special dc injection boxes.
(For details refer to operation manual).
The connection cable for DC Injection is available in
three different lengths CC-55 (25m), CC-56 (50m) &
CC-57 (100m).
through a %" stereo jack plug. If the SEND / RETURN
feature is not being used, the SEND / RETURN switch on
the rear panel of the central amplifier can be kept in OFF
Headphone Function
Each conference unit has a 3.5mm stereo headphone
socket along with a rotary volume control for adjusting
the level of headphone output. The volume level of
headphone is not affected by the setting of speaker
volume controloftheunit.
The central amplifier has a 6.3mm headphone socket
and a separate headphone volume control on the front
Built-in PA Amplifier
In certain situations, additional sound reinforcement
through external speakers may be required. Hence, the
Central Amplifier has a built-in 50W PA amplifier for
powering these external speakers.
Built-in Digital Recorder/Player
Built-in Digital Recorder/Player with LCD display and
USB/SD card reader. This is specially useful for recording
the conference proceedings, or for playing back
recorded speeches/ messages.
Junction Box DC Injection Box
Suitable for connecting the Suitable for large installations
conference units in a bus bar where long lengths of
arrangement. interconnecting cable required.
E E E = = E
у | | | i Microphone
Wall Speaker
ог LINE > Central Amplifier
== == == == == ==
Wall Wireless
. Podi
Speaker Microphone OCIUM
Central Amplifier
Column = ew mee Column
Speakers une Speakers
О 0
О 0
О LINE 2 8 0
О 0
Feedback Destroyer
PA Amplifier
Line Output 1
Line Output 2
Power Output
Frequency Response
S/N Ratio
Tone Controls
Preamp Output
Line Output
Send Output
Return Input
Speaker Output
Power Requirement
Power Consumption
Current Consumption
Mic Auto Switch-Off Time
17.5V DC/3A Max.; -34dBV (20mV)
17.5V DC/3A Max.; -34dBV (20mV)
50W RMS at 2% THD, 90W Max.
3xMic 0.66mV/4.7kQ, 1xAux 100mV/470kQ
60-14,000Hz (+ 3dB)
> 60dB
Bass: -10dB at 100Hz, Treble: -10dB at 10kHz
40, 80, 160, 70V & 100V
AC: 220-240V, 50/60Hz, DC: 24V (2x12V Car Battery)
AC Fuse 1x3 Amp, DC Fuse 3x10 Amp
W483 x H110x D325 mm
1x Connection Cable CC-46, 1x Extension Cable CC-47, 1x Fuse 3 Amp, 2 X Fuse 10 Amp.
-63dBV/ubar (7.5mV/Pa)
< 50mA Max.
Line, Headphone
Max Input 300mW
Priority Switch, Talk Switch, Speaker Volume Control,
Headphone Volume Control
W118 x H70 x D160 mm
1.05 kg (w/o cable)
Foam Windshield, 2.5m Interconnecting Cable
-63dBV/ubar (7.5mV/Pa)
< 50mA Max.
75 seconds approx.
Line, Headphone
Max Input 300mW
Talk Switch, Speaker Volume Control,
Headphone Volume Control
W118 x H70 Xx D160 mm
1.05 kg (w/o cable)
Foam Windshield, 2.5m Interconnecting Cable
Design and Specifications are subject to change without notice owing to continuous product up-gradation. Technical specifications are subject to production tolerances. We cannot be held responsible for
printing errors, should they occur. AHUJA ¡s a registered trademark of Ahuja Radios in India and other countries. © Copyright Ahuja Radios, 2015. All rights reserved. Any unauthorized reproduction or use of logos,
images or design elements is strictly prohibited by law. No part of this compilation may be reproduced in any manner or translated without written permission.
For further details, please contact:
215, Okhla Industrial Estate, New Delhi-110 020, India
Tel: +91-11-26831549/51612475 Fax: +91-11-26847287/51616563
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