AHUJA CONFERENCE SYSTEMS CM-4000

50 WATTS

Central Mixer Amplifier

The Ahuja CM-4000 Conference System provides the much required sound reinforcement at meetings while eliminating problems of poor intelligibility and acoustic feedback. The system is ideal for use in a variety of applications in Boardrooms, Large Conference Halls as well as open conferencing in Convention Centres.
Highly sensitive 16″ long gooseneck microphone for comfortable sharing by two delegates.
Bright and clear ring LED indicator.
Compact and attractive die cast aluminium cabinet in a unique profile.
Headphone output available from each unit.
Automatic Mic Off feature in Delegate units.
Unique Send/Return facility through a stereo jack in Central Amplifier CMA-4400.
Chairman Unit has Priority Switch.
Record & playback the messages with the Secretary Unit.
AC Mains & 24V DC operation.
Central Amplifier is 19″ rack mountable.
Three Mic inputs and one Aux input for various user applications.
50W PA Amplifier for adequate sound reinforcement.
System expansion possible through Conference Expansion Unit CMB-4500.
Conference System can be installed in a bus bar arrangement by using Junction Boxes CB-45.

Line Output	17.5V DC/3A Max.; -34dBV (20mV)
Power Output	50W RMS at 2% THD, 90W Max.
Inputs	1×Mic 1.0mV/2kΩ (Balanced), 2×Mic 0.65mV/4.7kΩ (Unbalanced), 1×Aux 100mV/470kΩ (Unbalanced)
Frequency Response	60-14,000Hz (± 3dB)
S/N Ratio	> 60dB
Tone Controls	Bass: -10dB at 100Hz, Treble: -10dB at 10kHz
Preamp / Rec Output	200mV/600Ω
Line Output	1V/1kΩ
Send Output	200mV/600Ω
Return Input	200mV/10kΩ
Speaker Output	4Ω, 8Ω, 16Ω, 70V & 100V
Power Requirement	AC: 220-240V, 50/60HZ, DC: 24V (2×12V Car Battery)
Power Consumption	250VA
Protections	AC Fuse 1×3 Amp , DC Fuse 2×10 Amp
Dimensions	W482 × H88 × D295 mm
Weight	8.70kg
Accessories	1× Connection Cable CC-46, 1× Extension Cable CC-47, 1× Fuse 3 Amp, 1 × Fuse 10 Amp.

CMC-4100

Chairman Unit

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The CMC-4100 Chairman and CMD-4200 Delegate Units have built-in loudspeakers and high quality sensitive electret condenser transducer mounted on 16″ flexible goosenecks. The microphones of the units are equipped with a Ring LED indicator for easy visual identification of the unit in operation. Each unit has a headphone output with volume control.
The stylish, free-standing cast aluminium case has an angled facia incorporating the TALK switch which automatically mutes the internal speaker.
The Chairman Unit also has a non-lockable PRIORITY switch which interrupts the meeting with a chime tone and mutes the delegates’ microphones. Both units have recessed volume controls for setting desired sound levels.
The matching CMS-4300 Secretary Unit has a built-in loudspeaker and a headphone output with volume control. The Secretary Unit enables proceedings to be recorded through a cassette recorder, for a stenographer present to take notes and to relay pre-recorded messages or music to delegates.

Microphone	-63dBV/µbar, (7.5mV/Pa)
Current Consumption	< 50mA Max.
Mic Auto Switch-Off Time	75 seconds approx.
Input	Line
Output	Line, Headphone with Volume Control
Speaker	Max Input 300mW Impedance 16Ω
Controls	Priority Switch, Talk Switch, Speaker Volume Control, Headphone Volume Control
Dimensions	W145×H75×D180 mm
Weight	1.30kg (w/o cable)
Accessories	Foam Windshield, 2.5m Interconnecting Cable

Delegate Unit

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The CMC-4100 Chairman and CMD-4200 Delegate Units have built-in loudspeakers and high quality sensitive electret condenser transducer mounted on 16″ flexible goosenecks. The microphones of the units are equipped with a Ring LED indicator for easy visual identification of the unit in operation. Each unit has a headphone output with volume control.
The stylish, free-standing cast aluminium case has an angled facia incorporating the TALK switch which automatically mutes the internal speaker.
The Chairman Unit also has a non-lockable PRIORITY switch which interrupts the meeting with a chime tone and mutes the delegates’ microphones. Both units have recessed volume controls for setting desired sound levels.
The matching CMS-4300 Secretary Unit has a built-in loudspeaker and a headphone output with volume control. The Secretary Unit enables proceedings to be recorded through a cassette recorder, for a stenographer present to take notes and to relay pre-recorded messages or music to delegates.

Conference Expansion Unit

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An additional unit for adding more delegate units to the system. This unit also provides interconnection with the Central Amplifier CMA-4400. Works on 220-240V AC mains as well as 24V car battery.