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DSPKR 10 Watt RMS Amplified DSP noise cancelling Speaker  

 

1. Packing List

 - 

The DSPKR is shipped with the following:

 

 

  DSPKR noise cancelling speaker  

  Integral black audio lead with 3.5mm mono plug attached. 

  Speaker mounting bracket 

  Fused DC power lead 1030-FPL (Red cable +ve, Black/red cable –ve) 

 Mounting 

screws 

  Operating manual & customer feedback card 

 

2. 

Introduction 

 

The bhi 

DSPKR amplified DSP noise cancelling speaker greatly

 improves the clarity and 

intelligibility of speech in radio and voice communication systems. It is suitable for use in 
many applications where high background noise and interference mean that you cannot 
clearly hear what is being said. The speaker will enable the user to listen and concentrate 

stress-free

”.  Suitable applications where the speakers will be of great benefit are: 

Amateur radio, CB radio, two-way radio, HF radio, marine communications, scanners, taxi 
base stations and especially mobile installations.  

The speaker 

incorporates unique DSP 

technology to remove unwanted

 

background noise and interference from speech and has 

up to 7 DSP filter levels allowing

 

the user to optimise for their level of noise and

 

interference.

  The speaker simply connects into the exten

sion speaker socket or 

headphone socket of your audio equipment.   

The DSPKR comprises a wide frequency range 4” speaker and an audio amplifier capable 
of producing up to 10-Watts RMS audio power, with built in bhi DSP noise cancelling filter.  
The unit requires an audio input signal of between 80 and 500mV level and a DC supply of 
between 10 and 16 Volts (2A).  The unit is supplied with an attached black 2 metre audio 
cable with a moulded 3.5mm jack plug for the audio input, and a red/black 2.1mm fused 
DC power lead with bare ends.  A 3.5mm mono auxiliary output socket is provided to allow 
the speaker to be used with headphones or to drive another loudspeaker.

   

A 12V DC 

power supply 

PSU12-1A

 is available as an optional extra (UK customers).

 

 
Note: 

The DSPKR is designed for speech signals and is not really suitable for music.

 

 

3. 

Installation 

 
The speaker comes with a mounting bracket that enables the speaker to be used free-
standing on a desk or secured into vehicles using the self tapping screws provided. 
When installing, ensure that adequate access can be gained to allow operation of the 
Function button.  Furthermore, when installing in vehicles, ensure that the unit is not in 
direct sunlight or in a hot area. 
 
Make sure that the DSPKR 3.5mm plug lead and the fused DC power lead are routed 
away from sources of electronic interference or RF cables.   
 
For best results try to use a separate power supply to power the speaker, and in a vehicle, 
power directly from the vehicle battery as this will minimise the chance of alternator whine 
and other electronic interference occurring.

 

Содержание DSPKR

Страница 1: ...DSPKR 10 Watt RMS Amplified DSP noise cancelling Speaker User Manual bhi Ltd DSP noise cancellation products for radio and voice communications 1072 105D Iss B...

Страница 2: ...ally disclaims any implied warranties of merchantability or fitness for any particular purpose Furthermore bhi Ltd reserves the right to revise this publication and to make changes from time to time i...

Страница 3: ...ide frequency range 4 speaker and an audio amplifier capable of producing up to 10 Watts RMS audio power with built in bhi DSP noise cancelling filter The unit requires an audio input signal of betwee...

Страница 4: ...but not flashing rapidly If the AUDIO LEVEL indicator flashes rapidly the audio input level is too high and audio distortion may occur 6 Noise Cancellation The DSPKR STATUS indicator will initially sh...

Страница 5: ...been removed If the volume is increased and the noise cancellation is then switched off the resulting unprocessed signal will be at a higher level Care must be taken to avoid excessive signal levels t...

Страница 6: ...g green The speaker works but the noise cancellation doesn t appear to improve the audio quality of the signal Check the filter is switched on and increase the level to see if this makes any differenc...

Страница 7: ...o other common questions otherwise most queries can be resolved over the telephone or via email If not we will arrange with you to have your unit sent back to us for analysis repair or replacement if...

Страница 8: ...Page 8 bhi Ltd PO Box 318 Burgess Hill West Sussex RH15 9NR England Telephone 44 0 845 217 9926 Fax 44 0 845 217 9936 Email sales bhi ltd com Web www bhi ltd com 1072 105D iss B...

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