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IRT-270 Transmitter + Power Supply Unit + Mounting Bracket.

  • Designed for rooms up to approximately 270m2.
  • The unit is equipped with a 1/4" threaded mounting hole and can be screwed to a photographic tripod stand for  portable use, or it can be wall-mounted with the supplied mounting bracket.
  • The transmitter is used with suitable receiver modules to be purchased separately.

    Click here to see the IRT-270 transmitter stand-mounted.
    Click here for further information about ADSworldwide Assisted Listening Systems.

ADSworldwide offers a number of options to accommodate both increased room size and different room configurations.  Please contact our technical staff for the best solution applicable to your specific needs, but for example:

  • The IRT-730 is a transmitter designed for larger rooms up to 730m2.
  • Several IRT-270 transmitters can be daisy-chained for room configurations larger than 270m2.
  • A Repeater Panel (IRT-730-R) covering up to 730m2 can be used in conjunction with either the IRT-270 transmitter or the IRT-730 transmitter.

Items may be purchased separately:
IRT-270(18-0011-U01), PSU-02(18-0095-227), BKT-01(18-0102-C08)

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Please Note:
Infra-red receivers operating in the low band (95kHz and 250kHz) can suffer from florescent lighting interference.  In cases where high frequency florescent and/or incandescent lighting are used (this includes modern energy-saving lamps) the infra-red signal may become unusable.  In these cases use the high frequency infra-red systems operating above 2MHz.

Download Data Sheet for IRT-270  Medium Size Room Infra-Red Listening System (PDF format)


IRT-270  Medium Size Room Infra-Red Listening System

Technical Specification
Model IRT-270 AudioLink PRO
Type 1W IR Transmitter
Power Consumption 4W
Modulation Frequencies Low Band 95kHz, 250kHz FM
High Band 2.3MHz, 2.8MHz FM
Signal to Noise Ratio >60dB
Infra-Red Power, Coverage Area 1W, 270m2
Microphone Input 50Hz - 12KHz
0.1mV - 100mV
600ohm balanced
12 Vdc phantom source
XLR connector
Line Input 20Hz - 20kHz
100mV - 2V
10k ohm balanced
RCA and 3-pole terminal block connectors
High Level Input 20Hz - 20kHz
1V - 25V
10k ohm balanced
2-pole terminal block connector
Baseband Signal Connector BNC input and output
Colour Black
Dimensions 3.7H x 23W x 9D cm
Weight 500g with bracket



IRT-270 Medium Room IR Listening System (2.3/2.8 MHz)inc PSU and Mounting Bracket
Product Code : 18-0011-000
Weight(kg) :
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All prices include carriage to UK Mainland addresses but exclude VAT and are recommended selling prices. E-mail us for specially quoted prices for quantity purchases



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