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The Infrared Wireless Microphone System using this IR-820SP Y 4QD00 is a PA system designed for use in the school classrooms assuming that their size is about 10 m × 10 m (30 ft × 30 ft). The IR-820SP Y 4QD00 is a ceiling-mounted powered speaker with the infrared receiver and offers a wide frequency range of high-quality sound output. Possible to use with Channel A / B / 1 / 2. It features a digital amplifer for the amplification section, and a full-range speaker for the speaker section. Use of the supplied mounting hardware and optional HY-TB1 Tile Bar Bridge permits it to be versatilely mounted to match a wide range of applications and installation locations. This speaker is combined with an infrared wireless microphone and the IR-802T Infrared Wireless Tuner to make up the infrared wireless microphone system. The infrared microphone system eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent school classrooms.
| Power Source | 24 V DC (supplied from IR-802T) |
|---|---|
| Power Consumption | 4.4 W (based on UL standards) |
| Rated Output | 20 W |
| Frequency Response | 100 Hz - 20 kHz (-10 dB) at installation in 1/2 free sound field (Measured by installing the unit in the center of a ceiling.) |
| Amplification System | Class D |
| Distortion | 5 % or less (rated output) |
| Speaker Component | 12 cm 5") cone-type |
| Wavelength | 870 nm |
|---|---|
| Carrier Frequency | Channel A: 3.100 MHz Channel B: 3.350 MHz Channel 1: 4.100 MHz Channel 2: 4.725 MHz |
| Reception Angle | 360゜ (Horizontal) |
| Connection Terminal | RJ-45 |
|---|---|
| LED Indicator | Power (green) × 1 |
| UL Code | UL60065, UL2043 |
| Mounting Hole | φ300 mm (φ11.81") |
| Usage Cable | CAT-5 UTP |
| Operating Temperature | -10 ℃ to +50 ℃ (14 ゜F to 122 ゜F) |
| Operating Humidity | 90 %RH or less (no condensation) |
| Finish | Enclosure: Steel plate, plating Baffle: Fire-resistant ABS resin (resin material grade: UL94V-0, white) Punched net: Steel plate, white Filter section: Polycarbonate, optical cut filter |
| Dimensions | φ320 × 205 (D) mm (φ12.6 × 8.07) |
| Weight | 3.4 kg (7.5 lb) |
| Accessory | Safety wire (600 mm or 1.97 ft) ...................... 1 Ceiling reinforcement ring .............................. 1 Paper pattern .................................................. 1 Trim ring .......................................................... 1 |
* 0 dB = 1 V
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Provided the conditions in our refund policy have been met, refunds will be processed using the original form of payment. You can return an item purchased online by posting it to us. Please contact customer service for return address. Please note that delivery costs will be excluded from the refund unless goods are returned in accordance with your statutory rights (e.g. they are faulty or not as ordered).
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