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Califone PA-IRSYS-B


The Infrared Audio System delivers optimal sound quality and reception using audio technology that enhances classroom learning, participation and student comprehension.

At the heart of the system is a central control panel, through which all of audio passes before being amplified out to the entire classroom. There are two wireless channels for voice amplification one for the teacher mic and the other for students. Teachers love the comfy headset mic and connected transmitter because it helps saves their voice, leaving them feeling less fatigued at the end of the day. Students share their own wireless handheld mic and feel validated when their peers can hear everything that's said. An optional wired mic can also be used for a third presenter at the same time. Both wireless mics are recharged overnight once placed into their control panel holders and after eight hours are ready for a full day's use on a single charge.

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Category: Video & Multimedia:Educational:PA Systems


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Two ceiling-mounted sensors (twice the industry norm) receive the audio from both wireless mics and create an expanded coverage area for both of the wireless mics, preventing signal drop outs. This ensures no words are lost in classrooms up to 2,000 square feet.

In addition to amplifying audio played from MAC & PC computers and other audio sources, the system has an additional output designed to support a supplemental assistive listening system for students with special hearing needs. The Infrared Audio system can also be connected with teleconferencing systems (such as Microsoft Netmeeting) without the worry of annoying feedback so everyone in class can listen to and participate in the distance learning opportunities, Skype sessions and clearly hear connected announcements made from the school's main office.

Amplified audio for the Infrared Classroom System is routed through a choice of two or four array speakers of two or four ceiling speakers. Array speakers (PI30-SP) projects the audio at the audience with a narrower projection pattern. The tighter dispersion angle doesn't create disruptive background noise since the sound won't be bounced off walls and windows. Array speakers distribute the sound more evenly so the volume levels are the same at the front & rear of the room. The ceiling speakers are engineered with a frequency response that's optimal for vocal reproduction and multimedia presentations.

The Califone Infrared Classroom Audio Systems will help:
  • Improve academic achievement
  • Increase on-task behavior
  • Increase attention to verbal instruction
  • Improve comprehension for English Language Learners
  • Improve ease of listening and teaching
  • Reduce vocal strain and fatigue on teachers
  • Works with PC/MAC teleconferencing systems such as Microsoft Netmeeting so the entire class can participate in distance learning applications

The benefits of the Infrared Classroom Audio System are enhanced by its use of array speakers. Array speakers are most commonly seen at concerts and they deliver several advantages of being used in the classroom:
  • Array speakers target a tighter sound pattern directly at the audience with a narrower projection pattern. (A wider pattern bounces the sound off the walls and windows, which adds additional disruptive background noise to the very environment the system was installed to overcome.)
  • Array speakers distribute the sound more evenly so the volume levels are the same at the front & rear of the room.


Infrared Mic
  • Transmitting & Receiving Mode |IR
  • Transmitting & Receiving Frequency |2.35MHZ or 2.85MHZ
  • Wireless Transmission Range |Approximately 40 ft., for rooms up to 2,000 sq. feet
  • Current Consumption |240mA
  • AF Output |650mV AF 1kHZ
  • Mic. Inputs |Balanced and unbalanced, condensor (XLR, 1/4", 3.5mm)
  • Line Output |1/4"
  • AC Power Requirements |110 125 VAC, 50/60 Hz
  • Modulation |FM (Frequency Modulation)
  • Sensitivity |7 microvolts
  • Frequency Response |50 Hz - 15 KHz +/- 3dB
  • Dynamic Range |100 dB
  • Distortion |<1%
  • Battery |Two 1.2V (AA) or Two 1.5V(not included)

Student Hand Held Microphone
  • Sub-carrier Frequency |2.85MHz
  • Microphone |Unidirectional, dynamic
  • Power |2-'AA' NiMH Rechargeable batteries (not included)
  • Recharging Station|Included

  • Audio Power |30 Watts RMS
  • Power Requirements |18VAC 50 VA
  • Speaker Connections |for 2 speakers
  • Inputs |2 - Mono (RCA type, Hi Z, Mixed)
  • Auxiliary Volume Control |1
  • Sub-carrier Frequency |2.35 MHz or 2.85 MHz
  • Type |Super heterodyne - crystal controlled
  • Signal / Noise |>80 dB
  • Image Rejection |40 dB
  • Reception Sensitivity|>25dBuV 40kHz
  • Condensor |Balanced and unbalanced ( 3.5mm, XLR, 1/4") mic inputs, aux in and line out

Array Speakers
  • Two - Powered Array Speakers (PI30-PS)

External Infrared Dome Sensors
  • Type|Two (2) 360 degree ceiling mounted infrared sensors for optimal coverage of infrared signal pickup throughout the entire classroom
  • Cable Length |30 ft standard
  • Power |Powered by receiver
  • Size |3.9" (D) x 1.2" (thick)
  • Weight|7.5 oz each
  • Sensor Type |Lensed infrared diode
  • Lensed Diodes |6
  • Reception Angle |360 degrees

Storage Cabinet
  • Construction |Lockable steel case stores mics
  • Charging Ports |Built-in for beltpack transmitter & handheld mic
  • Dimensions |10.6"L x 4.75"W x 11.8"H

  • Safety |ACWall adapter is C-UL/CE approved
  • Weight | Shipping weight 45 lbs., 2 boxes
  • Warranty |6 years from date of purchase (PA only, all other parts one year)