The heart of the Azden infrared system is the IRR-30P 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 student pass-around. The receiver also has 2 stereo auxiliary inputs so that other line-level devices (CD players, MP3 players, VCRs, etc.) can be attached 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 external sensors can be attached. With all 4 of the ceiling speakers attached to the IRR-30P, sound is spread equally throughout the room, allowing all students to hear equally.
|Audio output:||5W x 4 @ 4 ohms|
|Line Input impedance:||32k ohms ±15%|
|Line Output adjustment:||- infinity to +10dBu|
|Power requirement:||15V DC @ 2.7A (use model BC-30)|
|Signal-to-Noise:||>75dB A weighted|
|Size:||8.03" W x 9.19" D x 1.73" H (204 x 233 x 44mm)|
|Sub-carrier frequencies:||2.06MHz & 2.56MHz|
|Type:||Super heterodyne - crystal controlled|