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bhi Noise Reduction products

Bhi Desktop Base Station DSP Noise Eliminating Speaker MK2

(£183.29 exc. VAT)
(£208.29 exc. VAT)
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Product code: A-DESKTOPMK11
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The bhi DESKTOP 10 watt DSP noise cancelling base station speaker will work with most radios, transceivers, receivers, and SDR radios, giving a new listening experience. The new rotary controls make it very easy to use and set up to your own operating conditions.

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). There are rotary controls on the side of the speaker for volume and filter level control.

The DESKTOP speaker can be connected to a stereo line level audio input signal, or to a standard speaker level audio signal from an extension speaker socket. There is a 3.5mm headphone socket below the controls that can accept either a 3.5mm mono or stereo jack plug.

The speaker is supplied with a quality 1.2 metre audio cable with a moulded 3.5mm jack plug on one end and 4mm banana plugs on the other, as well as a 2.1mm fused DC power lead and user manual.

NEW! Click here for the excellent new review of the DESKTOP DSP speaker in the Mar '15 QST magazine


Quality 10 watt 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 easy to two use rotary controls

Speaker level and line level audio 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)


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

Speaker Level Audio Input

Connector type 2 x 4mm banana socket/screw binding posts (mono)

Input voltage range 350mV to 3.5V pk-pk

Input impedance 8Ω (±2Ω) nominal

Input power rating 1.5W max

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


Weight 1.90kg (shipping weight)

Dimensions 200(H) x 150(D) x 160(W)mm

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).


“I have sometimes been a little sceptical about DSP noise cancellation, but this really does reduce noise very effectively without any annoying and distracting DSP artefacts...”

RadCom Jan ‘14 review

Geoff Blore:

“Transformed the output sound of my TS-930S providing as clear audio to match current rigs.”

Mr. B Hiley:

“The DESKTOP speaker is great, audio is crisp and clear, brilliant!”

“I just wanted to thank you for your amazing Desktop (10W) DSP Speaker. I bought it from you @ the Kempton Park Rally - I tried it for the 1st time this Sunday on a noisy 40m band and was gobsmacked! Your unit made a fine job eliminating the crud picked up by the radio. I now consider your noise eliminating speaker an essential bit of kit in my ham shack! Thank you very very much.” John G1WVN.