BHI Desktop MKII – DSP Noise Cancelling Base Station Speaker


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.


Excellent Audio Quality: The Desktor 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 Desktor speaker is easy to use with rotary controls for volume on/off and filter level on the side of the speaker.

Connections: The Desktor speaker has two 4 mm screw terminal posts at the back for mono speaker level signals (4 or 8 ohm), and a stereo 3.5 mm “Line Level” input socket suitable for use with SDR radio, Elecraft and FlexRadio products. There is also 3.5 mm headphone socket on the side of the speaker for mono or stereo headphones. 12V DC Power is via the 2.1 mm 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 Desktor speaker is supplied with a 2.1 mm fused DC power lead with bare ends, a quality 1.2 metre audio cable with a moulded 3.5 mm jack plug and 4 mm 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 Desktor Speaker: Simply connect the power lead and audio lead to your Desktor 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.

  • 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 35 dB (8 levels)
  • All functions microprocessor controlled
  • 3.5 mm headphone socket (mono or stereo phones)
  • Connector Type: 2.1 mm DC power jack (centre positive)
  • Input Voltage: 12 to 18 Volts DC
  • Input Current: 10mA standby, 125mA active (no signal), 2.5A peak
  • Connector Type: 3.5 mm Mono or Stereo line level
  • Input Voltage Range: 160 mV to 1.6V pk-pk
  • Input Impedance: 10kΩ (±2kΩ) nominal
  • Connector Type: 2 x 4 mm banana socket / screw binding posts (mono)
  • Input Voltage Range: 350 mV to 3.5V pk-pk
  • Input Impedance: 8Ω (±2Ω) nominal
  • Input Power Rating: 1.5W max
  • Speaker Output Power: 10W peak (supply voltage of 18V)
  • Bandwidth: 50 Hz to 4.3 kHz
  • Volume Levels: 16 levels (3 dB steps)
  • Headphone Output: 3.5 mm mono or stereo (8 to 64 Ohms)
  • Filter Levels: Levels + off
  • Noise Reduction: 9 dB to 35 dB
  • Tone Reduction: 4 dB to 65 dB
  • Status LED: 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: 1.90 kg
  • Dimensions: 200(H) x 150(D) x 160(W) mm

Additional information

Weight 2 kg