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IRR-50P 2-Channel Ceiling Mount IR Receiver with Sensor
Feature
IRR-50P2-Channel Ceiling Mount IR Receiver with Sensor
The heart of the Azden IRCS-X infrared system is the IRR-50P powered, 3-channel receiver. With an integrated 360 degree IR sensor it’s designed to be mounted directly in a ceiling tile and comes with mounting brackets. Optional additional sensors may be ordered for coverage of larger rooms (Part # IRD-60).
The receiver’s amplifier provides optimal power to drive up to 4 ceiling speakers (not included), which may be placed around the room to evenly distribute sound for the whole classroom.
The receiver accepts 3 channels of wireless audio allowing for the use of a teacher’s microphone, a student’s microphone and a line-level audio signal (such as from a MP3 play, smartphone, tablet or TV) to be used simultaneously. Volume for the 3 audio channels and power on/off is controlled by the included wireless remote control.
Specification
| Sub-carrier frequencies | 2.06MHz / 2.56MHz / 2.80MHz simultaneously |
|---|---|
| Type | Super Hetero-dyne-Crystal Controlled |
| Modulation | FM |
| Frequency response | 35Hz-7.0kHz ±10dB |
| Distortion | less than 1% |
| Speaker output | 5W x 4 @4 ohrms |
| Input terminal | Paging(100V-70V / 20v-8 ohrms / off) x 1, external sensor x 1 |
| Output terminal | Pre out x 1 、Rec out × 1 |
| Wireless remote controller | Power (On / OFF), Audio volume (UP /DOWN) |
| Power requirement | DC 15V, 28mA(Stand-by) / 560mA(1/8 w output) ※Due to differences in outlet plug shape and voltage in different countries, an AC adapter is not included as a standard accessory. Customers will need to provide their own AC adapter. |
| Dimensions | 250 x 250 x 47 mm |
| Weight | 2.2kg |
Advantages of Infrared
Infrared wireless microphone systems are the best solution for classrooms. In today’s RF saturated world a regular (VHF or UHF) microphone system risks interference from a variety of other devices and sources. Cell phones, radios, TV, PA systems, police and emergency service systems, etc., can all interfere with VHF and UHF, but not with IR. Furthermore, infrared is perfect for classroom audio, since, unlike the other systems, IR is short-range, cannot penetrate walls, and is dependent on line-of-sight. This means that a school can have as many classrooms as desired with individual audio systems without fear of interference. Since the Azden system is dual-channel, the teacher can have one microphone and a second person can also have a microphone. In addition, since each classroom system is on the same pair of channels, teachers can go from room to room without having to switch microphones.