TOA Infrared Wireless Microphone System

IR-820SP Infrared Speaker

IR-820SP

The Infrared Wireless Microphone System using this IR-820SP 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 is a ceiling-mounted powered speaker with the infrared receiver and offers a wide frequency range of high-quality sound output. 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 Source24 V DC (supplied from IR-802T)
Power Consumption4.4 W (based on UL standards)
Rated Output20 W
Frequency Response100 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 SystemClass D
Distortion5 % or less (rated output)
Speaker Component12 cm (4.72″) cone-type
Infrared Wireless Receiver
Wavelength870 nm
Carrier FrequencyTeacher (Channel A): 3.100 MHz
Student (Channel B): 3.350 MHz
Reception Angle360゜ (Horizontal)
Connection TerminalRJ-45
LED IndicatorPower (green) × 1
Mounting Holeφ300 mm (φ11.81″)
Usage CableCAT-5 UTP
Operating Temperature-10 ℃ to +50 ℃ (14 ゜F to 122 ゜F)
Operating Humidity90 %RH or less (no condensation)
FinishEnclosure: Steel plate
Baffle: Fire-resistant ABS resin (resin material grade: UL94V-0)
Punched net: Steel plate
Filter section: Polycarbonate
Dimensionsφ320 × 205 (D) mm (φ12.6 × 8.07)
Weight3.4 kg (7.5 lb)
AccessorySafety wire …1, Ceiling reinforcement ring …1, Trim Ring …1, Paper Pattern …1
OptionTile bar bridge: HY-TB1

IR-802T Infrared Wireless Tuner

 

IR-802T

The Infrared Wireless Microphone System using this IR-802T 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-802T is a 2-channel Infrared Wireless Tuner employing a fixed frequency system with 3 AUX inputs. It is combined with an infrared wireless microphone and an infrared wireless speaker to make up the infrared wireless microphone system. The infrared wireless microphone system eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent school classrooms.

  

*0 dB = 1 V
Power Source230 V AC, 50/60 Hz
(supplied AC adapter must be used)
Power Consumption8 W (based on UL standards)
Max. 40.8 W (rated output at IR-820SP)
Receiving FrequencyTeacher (Channel A): 3.100 MHz
Student (Channel B): 3.350 MHz
Receiver Sensitivity50 dB or more, Signal to Noise ratio (40 dBμV input, 1 kHz modulation, ±4.8 kHz deviation)
Signal to Noise RatioTuner: 60 dB or more (60 dBμV input, 1 kHz modulation, ±4.8 kHz deviation,
A-weighted, Equalization: Centered)
AUX: 75 dB or more (A-weighted, Equalization: Centered)
Tone Squelch Frequency32.768 kHz
InputAUX PC: line, -10 dB*, 10 kΩ, unbalanced, stereo mini jack (internal mixing)
AUX DVD/TV: line, -10 dB*, 10 kΩ, unbalanced, 2P RCA jack (internal mixing)
AUX MP3: line, -10 dB*, 10 kΩ, unbalanced, stereo mini jack (internal mixing)
Mute: 25 V line signals of telephone paging from a school intercom system
OutputALD (Assistive Listening Device): line, -10 dB*, 10 kΩ, unbalanced, monaural mini jack
Speaker: RJ45 (dedicated terminal for IR-820SP connection)
Frequency ResponseTuner: 100 Hz – 12 kHz, AUX: 100 Hz – 20 kHz
EqualizationHigh: ±10 dB at 10 kHz
Mid: ±10 dB at 1.3 kHz
Low: ±10 dB at 100 Hz
Mute FunctionMuted by 25 V line signals
LED IndicatorPower (green) × 1, Infrared Reception (yellow) × 2, Mute (red) × 1
Operating Temperature-10 ℃ to +50 ℃ (14 ゜F to 122 ゜F)
Operating Humidity90 %RH or less (no condensation)
FinishPanel: Aluminum, black
Case: Steel plate, black
Dimensions210 (W) × 46 (H) × 312 (D) mm (8.27 × 1.81″ × 12.28″)
Weight1.8 kg (3.97 lb)
AccessoryAC adapter (DC cord length: 1.8 m (5.91 ft)) …1, AC power cord (2m (6.56 ft)) …1,
Volume control cover …6, Removable terminal plug (2 pins) …1
OptionHalf width blank panel: MB-15B-BK

IR-200M Infrared Wireless Microphone

IR-200M

The IR-200M is a handheld infrared wireless microphone. It eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent conference rooms or school classrooms. Since infrared wireless microphone system uses a frequency band that does not interfere with that of the TS-800 and TS-900 series infrared conference system, both systems can be simultaneously installed in the same location.

  

BatteryIR-200BT-2 rechargeable battery for the infrared wireless microphone (option)
or AA alkaline dry cell battery (2 pieces).
Current ConsumptionTyp. 250 mA (2.4 V, Power selector switch: N)
Typ. 340 mA (2.4 V, Power selector switch: H)

Infrared Emitter
Wavelength870 nm (AM: Brightness modulation)
Modulation MethodFrequency modulation
Carrier FrequencyChannel A: 3.100 MHz
Channel B: 3.350 MHz
Transmission DistanceApprox. 20 m (65 ft) (Power selector switch: H, in an unobstructed space)
Approx. 15 m (50 ft) (Power selector switch: N, in an unobstructed space)


Tone Signal32.768 kHz
Modulation Sensitivity±4.8 kHz (1 kHz, when SPL of 84 dB is input)
Maximum Input Sound Pressure120 dB SPL
Microphone UnitUnidirectional electret condenser microphone
Frequency Response100 Hz – 12 kHz
Preemphasis300 μs
Battery Operation TimeApprox. 8 h (when the IR-200BT rechargeable battery for the infrared wireless
microphone is used, Power selector switch: N)
Approx. 6 h (when the alkaline battery is used, Power selector switch: N)
Operating Temperature0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity30 % to 85 %RH
FinishControl section: ABS resin, metallic gray, paint, 50% gloss
Filter section: Polycarbonate, optical cut filter
Dimensionsφ37 × 241.8 (H) mm (φ1.46″ × 9.52″)
Weight170 g (0.37 lb) (with battery)
AccessoryScrew driver (for setting) …1, Color label (6 colors) …1
OptionBattery charger: IR-200BC
Ni-MH Battery: IR-200BT-2 (containing 2 pieces)

IR-300M Infrared Wireless Microphone

IR-300M

The IR-300M is a hands-free infrared wireless microphone. It eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent conference rooms or school classrooms. Since infrared wireless microphone system uses a frequency band that does not interfere with that of the TS-800 and TS-900 series infrared conference system, both systems can be simultaneously installed in the same location.

  

BatteryIR-200BT-2 rechargeable battery for the infrared wireless microphone (option)
or AA alkaline dry cell battery (2 pieces).
Current ConsumptionTyp. 250 mA (2.4 V, Power selector switch: N)
Typ. 340 mA (2.4 V, Power selector switch: H)

Infrared Emitter
Wavelength870 nm (AM: Brightness modulation)
Modulation MethodFrequency modulation
Carrier FrequencyChannel A: 3.100 MHz
Channel B: 3.350 MHz
Transmission DistanceApprox. 20 m (65 ft) (Power selector switch: H, in an unobstructed space)
Approx. 15 m (50 ft) (Power selector switch: N, in an unobstructed space)

 

Tone Signal32.768 kHz
Modulation Sensitivity±4.8 kHz (1 kHz, when SPL of 84 dB is input)
Maximum Input Sound Pressure120 dB SPL
Input Sensitivity AdjustmentAdjustment range: -9 dB to 0 dB (factory preset: 0 dB)
Microphone UnitUnidirectional electret condenser microphone
Frequency Response100 Hz – 12 kHz
Preemphasis300 μs
InputExternal microphone input (φ3.5 monaural mini jack)
Battery Operation TimeApprox. 8 h (when the IR-200BT rechargeable battery for the infrared wireless
microphone is used, Power selector switch: N)
Approx. 6 h (when the alkaline battery is used, Power selector switch: N)
Operating Temperature0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity30 % to 85 %RH
FinishControl section: ABS resin, metallic gray, paint, 50% gloss
Filter section: Polycarbonate, optical cut filter
Dimensions64 (W) × 91.3 (H) ×27.3 (D) mm (2.52″ × 3.59″ × 1.07″)
Weight130 g (0.29 lb) (with battery and strap)
AccessoryScrew driver (for setting) …1, Color label (6 colors) …1
OptionBattery charger: IR-200BC
Ni-MH Battery: IR-200BT-2 (containing 2 pieces)