The NS4FX, it's never been easier to maintain complete control over your entire mix. The four independent channels give you complete control over the mix, samples, loops or effects on up to 4 software decks at the same time. The NS4FX's four channels feature dedicated, high-quality volume faders, 3-band EQ and large high-pass/low-pass filter knobs for maximum control over your sound. To ensure complete control over your mix, your professional controller features 4 crossfader assignment switches on its bottom edge, allowing you to quickly assign a channel to side A or B of the crossfader, or even not to slave the channel to the crossfader via the center OFF position.