Low-Pass Filter (LPF)
Filter that lets low frequencies pass.
Detailed explanation
The low-pass filter (LPF) lets low frequencies pass and cuts the high ones. The track sounds muffled and warm — like hearing it through a wall. On large club mixers it sits on the filter knob; the DDJ-FLX2 does not have one — there it runs through the [CFX] control and the Sound Color FX selected in the software. Ideal for atmospheric moments and for a distant sound in breakdowns. The counterpart to the HPF.
Sources (1)
- DDJ-FLX2 — Bedienungsanleitung (User manuals & documentation)Primary sourceAlphaTheta Corporation·Manufacturer·2024-11-14·retrieved 03.08.2026
German edition, 156 pages. The dates contradict each other: 14.11.2024 on the documentation page, 29.10.2024 in the German support article. To be resolved at the next re-check.
In practice
You turn the filter down and the track sinks — highs gone, only bass and a dull rumble left. That is the sound almost every build-up uses, and it works the same way in a transition. It is useful when the new track has a lot going on up top: you take the highs off the old one and let it carry only the foundation until you pull it out altogether.
Assessment by the DJLearn editorial team — experience, not a sourced factual claim.
Related terms
Where to learn this
Using filters
The guide that covers this topic in depth.
Explained in this phase
Phase 10: FX & Filter