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FEATURES

Infrared wideband receiver

   

Ideal for stereo or mono applications 

   

Excellent signal transmission due to carrier 

   

frequencies 2.3 / 2.8 MHz

Balance control left/right

   

Ergonomic volume control

   

Automatic on/off by when receiver is put 

   

on/removed

Moveable ear pads and low weight for 

   

great wearing comfort 

Lithium polymer battery for up to  

   

12 hours of permanent operation 

ARCHITECT

S

SPECIFICATIONS

A wideband infrared stetho receiver works 
on carrier frequencies of 2.3 and 2.8 MHz. 
It provides two operating modes, mono 
or stereo. Balance control attenuates the 
volume level either on the left or the right 
side. The volume control is easy to access 
and to control. A frequency range of 50 to 
16,000 Hz is covered by the receiver with 
a maximum sound pressure level of 125 
dB at 1 kHz. The included rechargeable 
battery provides an operating time of up to 
12 hours. The weight including the battery 
may not exceed 68 g. The battery shall be 
Sennheiser BA 300, the receiver shall be 
Sennheiser HDI 830. 

The HDI 830

 is a professional 2 channel re-

ceiver. It works on carrier frequencies of 2.3 and 
2.8 MHz for a high quality signal transmission. 
It can be used for mono and stereo applications. 
Intuitive operating controls make it easy to use.  
The included BA 300 lithium polymer battery 
offers up to 12 hours of battery life. 

TECHNICAL DATA

Modulation: ..............................................................FM, stereo
Receiving frequencies: ...........................................2.3/2.8 MHz
Frequency response: ..............................................50 – 16,000 Hz
Max. sound pressure level (at 1kHz): ................125 dB 
Total harmonic distortion (at 1kHz): ................. < 1 %
Signal-to-noise ratio: .............................................typ. 75 dB(A)
Operating time: .......................................................up to 12 h
Charging time: .........................................................approx. 3 h
Weight incl. battery: ...............................................approx. 68 g

DELIvERy InCLuDES
1 HDI 830 stethoset receiver 
1 BA 300 rechargeable battery
2 alternative pairs of ear pads
1 manual
1 quick start guide

HDI 830 

Infrared receiver

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