Klark Teknik DN360 Dual channel, 30-band, 1/3 octave. Two x thirty 30mm oil damped precision faders graphically positioned at 1/3 octave ISO frequencies between 25Hz-20kHz. Proprietary circuit designs utilizing “MELT” filters giving unbeatable performance. Comprehensive standard specifications include electronically balanced inputs and LED overload indicators. Earth lift switch enables signal and chassis grounds to be isolated eliminating ground-loop problems. Useful low cut 18dB/octave filters preventing subsonic components from overloading speakers or amplifiers. Equalization by-pass allowing easy comparison between direct and equalized signals. Scale switching gives the choice of either high slider resolution (±6dB) or normal (±12dB). Perspex security cover available to order, for use in permanent sound installations where system calibration has taken place.