Hans Scholtze at the bench, building a Mini SubHarmonics by hand
Hans Scholtze Designer & Builder
The Builder

Hans Scholtze, designer and builder of the Mini SubHarmonics

I've been fascinated by low frequencies for a long time. Not just the bass you hear, but the bass you feel. The physical weight of a film scene. The sub-20 Hz content in a synthesizer that your body registers before your ears do.

What I discovered is that most audio systems, even the good ones, never receive those frequencies. The source material doesn't contain them. Older recordings lacked the technology. Modern productions often omit them by choice.

The Mini SubHarmonics was my answer. Hardware with no latency, no driver installs, no software updates. A precise device that slots into any line-level signal path and adds the missing octave back in.

Everything is handbuilt in the Netherlands, in small batches. I test each unit before it ships. It only ships when it's right.

Philosophy

Designed to do one thing, and do it perfectly.

No software required

Zero dependencies. No drivers, no app, no cloud. Works the moment you plug it in.

Handbuilt, not mass produced

Small batches from the Netherlands.

No compromises

Low noise floor. Minimal latency. Aluminum enclosure. Built the way I'd want to receive it.