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Mini SubHarmonics, the DSP Subwoofer Enhancer
For those who want more out of their low end. This compact, handcrafted module adds subtle but powerful sub-bass to any audio system at home, in the car, or in the studio. Smart DSP fills in the missing range between 5 Hz and 40 Hz. Compact. Quiet. Powerful. Of course made in Holland
A Small Box with a Big Sound
Curious what subharmonics really sound like? In this video, I explain what the Mini SubHarmonics does, how it works,
and most importantly, how it makes your music sound deeper, fuller, and more powerful.
From 100 Hz down to 5 Hz, you’ll hear what your system might be missing — and how this little box brings the low-end to life.
🎧 Best experienced with a subwoofer or quality headphones.
Watch the Mini SubHarmonics in Action
What makes Mini SubHarmonics special?
Most systems lack true sub-bass — and you might not even realize it.
This video shows how Mini SubHarmonics brings it back with powerful DSP technology
Mini size, maxi bass
No menus, no hassle, just plug it in and feel what your sound has been missing.
Get your Mini SubHarmonics today and experience deeper, richer sound.
✅ In stock – ships within 2 working days.
What exactly does a subharmonic do?
Subharmonics allow frequencies to be reproduced lower than what is originally present in the signal.
This means they effectively create additional low tones that were not (or barely) there to begin with.
It generates frequencies that are exactly half of the original frequency, hence the name SubHarmonics — see pictures below
As a result, you get a deeper, fuller bass. The signal is essentially split, creating extra layers in the low end.
In short: Subharmonics enhance the low end by adding artificially generated deep tones for a richer sound experience.
Is my equipment compatible?
Mini SubHarmonics works with any audio system that has line-level (RCA) connections,like mixers, DACs, audio interfaces, or preamps.
It does not connect directly to speaker outputs or headphone jacks.
Your amp and speakers must be able to handle sub-bass between 5 Hz and 40 Hz.
Most home cinema subs and full-range systems will work just fine — but check your gear's specs to be sure.
🎧 Recommended Headphones
These models perform well below 20 Hz and are great for demoing subharmonics:
Sony MDR-7506
Audio-Technica ATH-M50x
Beyerdynamic DT 770 Pro
Sennheiser HD 280 Pro
AKG K371
Use with a good source (DAC or interface) for best low-end results.
Power supply Mini SubHarmonics:
Runs on 9–14V DC, so it’s perfect for both home and car audio setups.
Adapter and 12V car cable are included.
Mini SubHarmonics is not a toy, it’s a serious tool for those who want to feel their sound.
Hand-built in small batches, with care, precision, and no compromises.
Try it. Hear it. Feel it
Hand-built in small batches, with care, precision, and no compromises.
Try it. Hear it. Feel it
Low Frequency Test Video
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This video plays 10 seconds per frequency, starting from 100 Hz all the way down to 5 Hz:
100 Hz → 50 → 45 → 40 → 35 → 30 → 25 → 20 → 15 → 10 → 5 Hz
Use a subwoofer or quality headphones for best results,
many systems won’t reproduce anything below 40 Hz without help.
Want to feel the missing lows? That’s where Mini SubHarmonics comes in.
100 Hz → 50 → 45 → 40 → 35 → 30 → 25 → 20 → 15 → 10 → 5 Hz
Use a subwoofer or quality headphones for best results,
many systems won’t reproduce anything below 40 Hz without help.
Want to feel the missing lows? That’s where Mini SubHarmonics comes in.