The Square ONE Graphic from Klark Teknik is a dual-channel, thirty-band, third-octave graphic equalizer, with long-throw, forty-five millimeter faders. The unit is constructed to the same standards as the rest of the Klark Teknik range, while answering to more budget-sensitive applications.
Aside from the main filters, the unit sports a high- and low-pass filter per channel. These filters manage subsonic and ultrasonic frequencies respectively, providing protection for speakers while increasing the available headroom for the entire system. When engaged simultaneously, the filters provide optimal control over the operating bandwidth of most monitor (floor wedge and IEM) transducer systems.
The unit utilizes proportional-Q filtering, which varies the "Q" value depending on the depth of either the cut or boost of a particular band. This results in a "smooth" and "musical" response, while still preserving the original source material. Both inputs and outputs are balanced. The internal power supply automatically adjusts itself to various voltages, from 100 to 240VAC.