(1 customer review)

£179.95 inc VAT (£149.96 ex VAT)

Dramatically reduce unwanted noise and interference!

Get rid of noise and interference so you can hear clearly!
The bhi DESKTOP 10 Watt DSP noise cancelling base station speaker removes noise and interference to leave clear speech. It works on all types of radio, transceivers, receivers, and SDR radios, giving a new listening experience.  The intuitive rotary controls make it very easy to use and set up to your own operating preferences.

SKU: A-DESKTOP Category: Tag:


Excellent audio quality
The DESKTOP speaker comprises a 4″ bass driver and a 1″ tweeter unit with an amplified bhi DSP noise cancelling unit capable of producing up to 10 Watts audio (peak).

Easy to use controls
The DESKTOP speaker is easy to use with rotary controls for volume on/off and filter level on the side of the speaker.

The DESKTOP speaker has two 4mm screw terminal posts at the back for mono speaker level signals (4 or 8 ohm), and a stereo 3.5mm “Line Level” input socket suitable for use with SDR radio, Elecraft and FlexRadio products. There is also 3.5mm headphone socket on the side of the speaker for mono or stereo headphones.  12V DC Power is via the 2.1mm power socket (centre +ve).

Filter level control
Noise cancelling is switched on and off by pressing the filter level control.  Rotating this control allows you to change the filter level in real time to suit your current listening conditions.

What’s in the box
The DESKTOP speaker is supplied with a 2.1mm fused DC power lead with bare ends, a quality 1.2 metre audio cable with a moulded 3.5mm jack plug and  4mm banana plugs and a full user manual.  A 12V DC world-wide mains plug-in power supply PSU12-2A-WW is available as an optional extra.

Using your DESKTOP speaker
Simply connect the power lead and audio lead to your DESKTOP speaker and radio, switch on the power supply and you are ready to go, adjusting the volume and filter level controls on the side of the speaker to suit your own requirements.

Click here for the excellent QST review of the DESKTOP DSP speaker in the Mar ’15 QST magazine


  • Quality 10Watt amplified DSP base station speaker
  • 4″ bass driver and 1″ tweeter for excellent audio
  • Works with most radios and receivers including SDR radios
  • Simple to operate with intuitive rotary encoder controls
  • Speaker level and line level audio input connections
  • Audio input level overload feature
  • Noise reduction 9 to 35dB (8 levels)
  • All functions microprocessor controlled
  • 3.5mm headphone socket (mono or stereo phones)

Additional information

Weight 1.95 kg



DC Power
Connector type 2.1mm DC power jack (centre positive)
Input voltage 12 to 18 Volts DC
Input current 10mA standby
125mA active (no signal)
2.5A peak
Line Level Audio Input
Connector type 3.5mm Mono or Stereo line level
Input voltage range 160mV to 1.6V pk-pk
Input impedance 10kΩ (±2kΩ) nominal
Audio Output
Speaker output power 10W peak (supply voltage of 18V)
Bandwidth 50Hz to 4.3kHz
Volume levels 16 levels (3dB steps)
Headphone output 3.5mm mono or stereo (8 to 64 Ohms)
DSP Noise Cancellation
Filter levels 8 levels + off
Noise reduction 9dB to 35dB
Tone reduction 4dB to 65dB
Status LED Multicolour LED (red, amber, green)
Audio tones Power-up, power-down, DSP filter level, volume and memory store, Input overload indication.
Power/Volume Digital rotary encoder with push function
DSP level Digital rotary encoder with push function
Dimensions 200(H) x 150(D) x 160(W)mm 1.90kg (shipping weight)

Note: Elecraft K3 users:  To connect to the K3 using the speaker lead supplied you need to either make up an audio lead with a 3.5mm stereo plug (tip only connected) to a 3.5mm mono socket, or purchase one of our ALD-009 leads, or alternatively use a 3.5mm stereo plug to plug lead and connect from your K3 to the line in socket on the DESKTOP speaker (ALD-007).

1 review for DESKTOP

  1. greenparrot

    excellent product, it completely eliminated background interference, highly recommend

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