Products Information
IRR-40P 2-Channel IR Receiver
Feature
Infrared Wireless Classroom System2-Channel IR Receiver
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.
Specification
| Sub-carrier frequencies | 2.06MHz & 2.56MHz |
|---|---|
| Type | Superheterodyne – crystal controlled |
| Modulation | FM |
| Pilot Tone Signal | 32.768kHz |
| Frequency Response Deviation | 50-10kHz ±3dB / less than 1% |
| Audio Output | RCA Jack Mono x2 |
| Speaker Out | 5W x4 @4 Ohms |
| Line Input | RCA Jack (L & R) |
| Sensor Input | F-connector x3 |
| Power requirement | 15V DC @ 2.7A ※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. |
| Size | 8.03″ W x 9.19″ D x 1.73″ H (204 x 233 x 44mm) |
| Weight | 3.3lb (1.5kg) |
The heart of the Azden infrared system is the IRR-40P powered, dual channel receiver. It allows you to use and control the volume of 2 wireless microphones simultaneously, either for “team-teaching” or to use the handheld microphone for students to pass around. The receiver also has 2 stereo auxiliary inputs so that other line-level devices (CD player, MP3 players, VCRs, etc.) can be connected and played through the system. The teacher can also send the audio to a recorder or video camera, using the line-level output jack. For bigger rooms or odd-shaped rooms, up to 3 additional sensors can be attached. With all 4 of the ceiling speakers attached to the IRR-40P, sound is spread equally throughout the room, allowing all students to hear equally well.