BHI Desktop MKII - DSP Noise Cancelling Base Station Speaker

Dramatically reduce noise and interference and hear more 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.

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).

It 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).

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.

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.

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.

Features

• Quality 10 Watt amplified DSP base station speake
• 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)
• Weight: 1.90kg(shipping weight)
• Dimensions: H-200 x D-150 x W-160mm

Specification

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: levels + off
• Noise reduction: 9dB to 35dB
• Tone reduction: 4dB to 65dB
Indications
• Status LED: LED (red, amber, green)
• Audio tones: Power-up, power-down, DSP filter level, volume and memory store. Input overload indication.
Controls
• Power/Volume: Digital rotary encoder with push function
• DSP level: Digital rotary encoder with push function