Pioneer has just updated its Flagship club four-channel DJ mixer and we now have one in the DJbooth.net lab for the full out review treatment. The Pioneer DJM-900NXS2 now has dual USB ports, a mini-headphone jack, soundcolor effects parameter knob, new beat FX, an OLED display, better sound quality, and an FX Frequency Selector that allows the user to select the EQ range to apply the effect. We’ll have the full review completed soon, but check out our unboxing and first impressions video to see all that comes in the package.