Whether you use a scanner, marine radio, amateur radio, or communication receiver, background noise can significantly hinder speech intelligibility. Weak signals easily disappear into static, hum, or interference, leading to important information being lost.
The bhi DSP Noise Cancelling Speakers were developed to solve this problem. Thanks to advanced Digital Signal Processing (DSP), unwanted background noise is automatically filtered out, while speech is preserved as much as possible. The result is a much clearer audio signal without having to turn up the volume unnecessarily high.
In this blog, we compare the bhi DESKTOP MKII and the bhi NES10-2 MK4. You'll discover the differences, applications, and which speaker best suits your situation.
What is a DSP noise cancelling speaker?
A DSP Noise Cancelling Speaker is an active speaker in which a digital signal processor continuously analyzes the audio signal. The processor recognizes human speech while simultaneously suppressing unwanted background noise.
This makes radio signals more intelligible, even when they are disturbed by:
- Atmospheric noise
- RF interference
- White noise
- Engine noise
- Wind noise
- Electronic interference
- Fans
- Ambient noise
Unlike an ordinary external speaker, a DSP speaker not only amplifies the sound but also actively improves the sound quality.
How does BHI's DSP technology work?
bhi's technology uses Digital Signal Processing (DSP). Incoming audio signals are analyzed thousands of times per second. The system distinguishes speech from noise and automatically applies digital filters.
All current bhi DSP speakers feature:
- Up to 40 dB noise reduction;
- Up to 65 dB tone reduction;
- Eight adjustable filter settings;
- Real-time adaptation to changing noise conditions.
As a result, the user does not have to program complex settings. The speaker automatically adapts to the situation.
DSP versus Active Noise Cancelling
Many people confuse DSP Noise Cancelling with Active Noise Cancelling (ANC), but they are two different techniques.
Active Noise Cancelling works with anti-noise that cancels out ambient sounds. This technique is mainly used in headphones.
bhi's DSP technology works differently. Instead of producing anti-noise, the processor analyzes the radio signal and exclusively removes the disturbing components from the audio signal. Speech is preserved as much as possible.
It is precisely this method that makes DSP particularly suitable for radio traffic, where interference and static noise play a larger role than ambient noise.
Why choose a DSP speaker?
A DSP speaker offers several advantages over a standard external speaker:
- Better intelligibility of weak signals
- Less listening fatigue
- Less disturbing background noise
- Suitable for almost any receiver or transceiver
- Easy installation
- Immediately audible difference
For users who listen to radio signals for extended periods, this provides greater listening comfort and less chance of missing important messages.
The BHI DESKTOP MKII
The DESKTOP MKII is the most powerful speaker in the range. Thanks to its built-in 10-watt amplifier, separate woofer, and tweeter, this speaker delivers rich and clear sound.
Key features:
- 10-watt audio power
- Separate volume control
- Separate DSP filter control
- Line input
- Speaker connection
- Headphone jack
- Robust ABS housing
- Metal speaker grille
This speaker is ideal for fixed radio setups, listening posts, and radio amateurs who desire maximum sound quality.
The BHI NES10-2 MK4
The NES10-2 MK4 delivers the same DSP noise reduction in a much more compact size.
Advantages:
- Compact design
- 5-watt amplifier
- Mounting bracket
- Eight DSP filter settings
- Audio bypass
- Headphone jack
- LED status indication
Due to its small dimensions, this speaker is popular in vehicles, boats, and small shack setups.
| Feature | DESKTOP MKII | NES10-2 MK4 |
|---|---|---|
| Power | 10 W | 5 W |
| DSP filter settings | 8 | 8 |
| Noise reduction | up to 40 dB | up to 40 dB |
| Headphone | ✔ | ✔ |
| Line input | ✔ | ✖ |
| Mounting bracket | ✖ | ✔ |
| Fixed setup | ★★★★★ | ★★★★☆ |
| Mobile application | ★★★☆☆ | ★★★★★ |
Which speaker suits your application?
Choose the DESKTOP MKII if you:
- Have a fixed radio setup
- Want maximum sound quality
- Listen a lot to HF or shortwave
- Are looking for a powerful external speaker
Choose the NES10-2 MK4 if you:
- Have limited space
- Want to mount a speaker in a vehicle or boat
- Are looking for a compact DSP solution
- Want the same DSP performance in a smaller form factor
Frequently asked questions
Do these speakers work with every radio?
In most cases, yes. They are suitable for almost all scanners, receivers, marine radios, and amateur radios with a speaker output.
How much noise can be suppressed?
Up to about 40 dB, depending on the chosen filter setting.
Can I turn off the DSP?
Yes. Both models have a bypass function that allows you to easily switch between the original and processed audio signal.
Is a DSP speaker better than a regular external speaker?
Yes, if you regularly listen to signals with noise or interference. A DSP speaker not only improves volume but, more importantly, speech intelligibility.
Conclusion
Both the bhi DESKTOP MKII and NES10-2 MK4 utilize the same proven DSP technology to reduce disturbing background noise and improve speech intelligibility. The choice primarily depends on your application: if you are looking for maximum sound quality for a fixed setup, the DESKTOP MKII is the best choice. If you have limited space or want a compact solution for a vehicle or boat, the NES10-2 MK4 offers the same DSP performance in a smaller size.
