The unit’s facade is a metal plate that clearly labels all functions as well as all the fundamental shift layers, making for a very sturdy face that can endure the rigours of absolute DJ performance. The front of the unit has the standard 1/4” headphone jack, a 1/8” headphone jack (for consumer grade phones), and a 1/4” microphone jack with volume knob for hooking up a mic to your set-up. You can set the booth output to be your master out via a switch here, perfect for connecting to a soundsystem or mixer that uses RCA jacks. The rear connectivity includes a pair of 1/4” jacks for your master output, a pair of RCA jacks and another pair of 1/4” jacks for your booth output with volume knob, a USB port and an RCA auxiliary input pair for connecting an audio device. The upfaders feel solid, and the crossfader is smooth and produces a nice click as you move it back and forth against the unit’s faceplate. Having unpacked the rather hefty unit (it’s almost 10 pounds!), laying it on my DJ desk leaves a rather fetching sight: two large silver jogwheels and two rows of performance pads underneath them are what caught my eye at first glance. First Impressions / Setting up The Pioneer DDJ-SR is a two channel DJ controller that comes with Serato DJ and is fully powered by a single USB cable.