Long-throw faders for maximum accuracy and resolution.

Maximum input capability of +22dBu.

Auto voltage-sensing, operates anywhere between 100-240V +/- 10%.

XLR & TRS connectors, both feature extremely high CMRR.

Continues to pass audio in the event of power failure.

Designed to withstand the rigours of the road.

The 'Q' or bandwidth of the Square ONE's filters is proportional to the gain applied, and so gives increasing focus on real problem frequencies. This also means that adjacent filters sum together with minimum phase error, providing smooth, ripple-free summation.

This filter mapping is also implemented on the World-leading KLARK TEKNIK DN370, and is the most appropriate for live sound reinforcement.

The HPF on graphic equalisers are used to remove unwanted subsonic frequencies (traditionally about 30Hz). The HPF on the Square ONE graphic is set at 80Hz. If using your Square ONE graphic with a large speaker system, then you will almost certainly be using an active crossover, which should provide appropriate subsonic protection. In this case, leave the HPF out of circuit.

When using more compact loudspeakers, use the 80Hz. knee of the Square ONE HPF for maximising their headroom and efficiency (If using your Square ONE graphic with foldback loudspeakers which have an extended bass response, the HPF can still be used, in fact, useful results can be obtained by 'bending' the knee of the HPF, by boosting the 63Hz fader on the graphic).

The Square ONE graphic's LPF is fixed at 12kHz. This is optimal for stage monitoring applications, both loudspeaker and IEM systems, and will increase available headroom as well as providing HF drivers with some thermal protection against ultrasonic frequencies.

When engaged simultaneously, the Square ONE graphic's HPF & LPF give optimal control of the operating bandwidth of most foldback (floor wedge & IEM) transducer systems.