Azden IR-WS Infrared Classroom System

by Azden
Azden IR-WS Infrared Classroom System
The Azden IR-WS Infrared Classroom System is a complete wireless microphone and speaker system for any classroom. The system includes an infrared receiver, wireless handheld microphone, wireless chest-worn microphone, ceiling mounted infrared sensor and two wall mounted speakers.

Both of the included microphones may be used simultaneously for dual teaching, student response applications, etc. Infrared wireless transmission eliminates the noise and interference associated with crowded UHF and VHF, resulting in clear reception and minimal signal loss.

The receiver features volume controls for each microphone and inputs that allow external player devices such as, mp3 players, VCRs and DVD players to be connected through the system. An audio output jack will send audio to external recording devices and video cameras for documenting classes.

All of the components are available separately and up to 3 additional infrared sensors can be attached for use in larger or odd-shaped rooms. The Azden IR-CS Infrared Classroom System combines the benefits of infrared wireless technology with an intuitive public-address system that's custom made for classrooms.


IRR-30P - 2-channel receiver w/power amplifier

Sub-carrier frequencies: 2.06MHz & 2.56MHz
Type: Super heterodyne - crystal controlled
Modulation: FM
Signal-to-Noise: >75dB A weighted
Reception sensitivity: >25dBµV
Line Input impedance: 32k ohms +/-15%
Line Output adjustment: - infinity to +10dBu
Audio Output: 5W x 4 @ 4 ohms
Power requirement: 15V DC @ 2.7A (use model BC-30)
Size: 204 x 233 x 44mm
Weight: 1.3kg

IRH-15c - 2-channel handheld transmitter

Sub-carrier frequencies: 2.06MHz & 2.56MHz switchable
Modulation: FM
Microphone element type: Uni-directional dynamic
Frequency Response: 50-8kHz +/-3dB
Battery type: 2-"AA" alkaline( 1.5V x 2 ) or
2-1HR-3U "AA" rechargeable Ni-MH (1.2V x 2 )
Battery life: > 6 hours w/alkaline batteries
Size: 245 x 35mm)
Weight: 258g w/alkaline batteries

IRN-10 - 2-channel chest-worn transmitter

Sub-carrier frequencies: 2.06MHz & 2.56MHz switchable
Modulation: FM
Microphone element type: Uni-directional electret x 2
Frequency response: 50-9kHz +/-3dB
Ext Mic input impedance: 2.2k ohms Ext Mic input jack: 3.5mm
Ext. Mic Voltage/Current: 3.5VDC @ 1mA (to power electret mic element)
Mic gain adjustment: +6dB to approx. -10dB
Battery type: 2-"AA" Alkaline (1.5V x 2) or
2-1HR-3U "AA" rechargeable Ni-MH (1.2V x 2)
Battery life: > 8hours w/alkaline batteries
Size: 80 x 70 x 27mm
Weight: 120g -w/alkaline batteries

IRD-60 - Dome sensor

Output: F Connector
Power: powered by receiver (24V @ 15mA)
Cable requirement: RG59 - 75 ohm coaxial
Size: 100x30mm
Weight: 170g w/mounting bracket

In the Box

IRR-30P Receiver
IRN-10 Chest-worn Microphone
IRH-15c Handheld Microphone
IRD-60 Sensor
4 x AWS-4.5 Wall Mount Speaker
BC-30 Power Supply for Receiver
2 x BC-29 Transmitter Chargers
4 x AA NiMH Rechargeable Batteries
Ceiling Brackets for IRD-60 Infrared Sensor