Klementz Audio builds in small batches in France. It is in this directory because it belongs there, and this page is written like the other ten.
Where the workshop comes from
The first units were stereo modular preamps, built to order, with frequency cards you physically swap to change the crossover points. Every one was different: number of ways, effect modules, rack format.
That modular custom work is no longer offered. The pages describing it still exist, but no unit of that kind can be ordered today. If you come across one second hand, that is where it comes from.
The range
| Unit | What it is | Price |
|---|---|---|
| Dub Mixer | Preamp, isolator filters, delay and siren in a stereo unit under 1 kg | €599 |
| 4U rack | 5 way stereo with DSP — in the works | ~€1,590 announced |
| DIY NJD kit | Siren to solder yourself, based on the NJD schematic | €55 |
The Dub Mixer
It is the unit most people start with. The bet is all-in-one: instead of stacking a preamp, a mixer, a delay and a siren — four boxes, four power supplies, a dozen cables — everything sits in one stereo unit you can carry.
What it costs in return: you cannot replace one link independently, and the crossover points are not those of a multi-way rack unit. That is a choice, not a hidden compromise.
The 4U rack, in the works
This is the other end of the range, and it answers what the Dub Mixer does not: a 4U rack, five way, stereo, with DSP.
- Crossover frequencies adjustable from the screen, not fixed at build time.
- Internal effects, adjustable, plus three stereo effect sends.
- Five music inputs (2 phono, 3 line), adjustable stereo inserts.
- Compressor and limiter on every output, compressor on every input.
- Around 48 × 18 × 20 cm, two year warranty.
Announced at around €1,590. The unit does not ship yet: it is reserved through a waiting list.
Who it is for
The Dub Mixer is for people who play out and move their gear, or who are starting and would rather not stack four purchases. It works in stereo, which matters if you also play at home, in a bar or on radio.
The 4U rack is the opposite: a fixed wall, five way, where crossover points are set to match the bins and the unit stays in the rack. That is the segment Sage, JTS and Moses cover.
→ Active or passive filtering: what it changes in the chain
→ All dub preamp manufacturers
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