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Sennheiser SI 1015 IR Modulator

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Availability: Ordered In Upon Purchase

Category: A/V-Presentation-Assistive-Listening-Assistive-Listening-Systems, sennheiser

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The SI 1015 wideband modulator uses the new extremely reliable carrier frequencies 2.3 and 2.8 MHz and can be operated in single-channel, two-channel and stereo modes. The modulator is fitted with two balanced XLR-3 audio inputs and IR monitoring diodes. It can be used with SZI 1015 and SZI 1029 radiators, the signals for the radiators are available at two RF sockets, or, alternatively, at a barrier strip. (N.B.: The barrier strip – which also powers the connected radiators – can only be used with SZI 1015 and SZI 1029-24 radiators.)

• 2-Watt radiator and modulator for the new carrier frequencies 2.3 and 2.8 MHz 
• 2-Watt radiator with a maximum coverage area of 400 m² 
• chaining the signal to additional radiators 
• Modulator for single-channel, two-channel or stereo operation, features monitoring diodes and a separate barrier strip with RF and DC outputs for connecting radiators 
• Wide range of mounting accessories for the radiator, modulator comes complete with rack-mount ears 
Delivery Includes
• SI 1015, two rack-mount ears  



Nominal deviation

+/- 40 kHz

Carrier frequencies

2,3 MHz / 2,8 MHz


600 Ohm

Operating voltage (mains)

24-30 V DC

Current consumption

<140 mA


1/2 19", 1 U (224x44x173 mm)


800 g

Audio-XLR connector

2 x XLR-3 symet.

RF output

2 x BNC

Peak deviation

+/- 56 kHz

Input voltage range

10 mV.....5 V (Line)


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