The DN330 — Single-Channel 30-Band Preset Equaliser

The Klark Teknik DN330 is a single-channel, 30-band preset graphic equaliser designed for engineers who demand fine-grained spectral control over a mono signal path. With one third-octave ISO-spaced fader for every critical frequency from sub-bass to air, the DN330 delivers the resolution required for serious room correction, monitor tuning, and front-of-house refinement.

Thirty Bands, One Honest Path

The DN330’s third-octave resolution follows the ISO standard that has defined professional graphic equalisation for half a century. Each band’s preset Q is set to the value Klark Teknik’s engineers determined gave the most musical, least phase-disruptive response — a deceptively simple decision that took years of listening tests to settle.

Engineered in Britain

The DN330 was designed and built at our Kidderminster facility, where the discipline of British studio engineering still shapes every product that carries the Klark Teknik name. Although this model is now obsolete, units in continued use on tours and in installations remain trusted for one reason — they were built to behave the same way on the thousandth night as they did on the first.

A Single-Channel Workhorse

Whether ringing out a wedge, taming a feedback-prone PA, or shaping a broadcast mix, the DN330 was the engineer’s single-channel companion for over a generation. Its legacy continues in our current DN-series lineup.