XLogic X-Rack Channel EQ Module is a Classic SSL four-band parametric EQ that is a superb all round frequency adjustment tool kit. Pinpoint accuracy for surgical problem solving, smoother broader sound shaping or a little more aggressive character the SSL EQ give what you need. This is a fully featured EQ with high- and low-bands switchable between shelving or fixed Q bell curves and two mid-bands each with variable Q control.