bhi Desktop MKII 10 W DSP speaker
10 W amplified base speaker with 9–40 dB DSP noise cancelling, 4" woofer and 1" tweeter
The bhi Desktop MKII is a 10 W amplified base station speaker with built-in DSP noise cancelling: it removes noise and interference while keeping speech clear, with radios, receivers and SDRs.
Product description
It has a 4" woofer and a 1" tweeter. The rotary controls on the side adjust power and volume and the filter level; pressing the filter control turns noise cancelling on or off, adjustable in real time.
On the back there are two 4 mm screw terminals for mono speaker-level signals (4 or 8 Ω) and a 3.5 mm stereo line-level socket, suitable for SDR, Elecraft and FlexRadio. On the side is the 3.5 mm mono or stereo headphone socket. It is powered at 12 V DC via a 2.1 mm centre-positive socket.
Key features
4" woofer and 1" tweeter.
Noise cancelling in 8 levels.
Speaker level and line level.
Note
Elecraft K3 users: connecting with the supplied cable requires an adapter from 3.5 mm stereo plug (tip only connected) to 3.5 mm mono socket, or connection to the line input. The bhi PSU12-2A-WW power supply is available separately.
Technical specifications
| Audio power | 10 W peak (18 V supply) |
| Bandwidth | 50 Hz–4.3 kHz |
| Noise reduction | 9–40 dB, 8 levels + off |
| Tone reduction | 4–65 dB |
| Line input | 3.5 mm mono/stereo, 160 mV–1.6 Vpp, 10 kΩ |
| Speaker input | 4 mm terminals / banana plugs (mono), 350 mV–3.5 Vpp, 8 Ω, max 1.5 W |
| Headphone output | 3.5 mm mono/stereo, 8–64 Ω |
| Volume | 16 steps of 3 dB |
| Power supply | 12–18 V DC, 2.1 mm centre-positive socket |
| Current draw | 10 mA standby · 125 mA active with no signal · 2.5 A peak |
| Dimensions | 200 × 150 × 160 mm (H × D × W) |
| Shipping weight | 1.9 kg |
Package contents
- Desktop MKII speaker
- Fused DC power cable with 2.1 mm plug
- 1.2 m audio cable with 3.5 mm jack and 4 mm banana plugs
- User manual
HamRadioShop | DSP audio
