Xponent is a DJ MIDI Controller from M-Audio with built-in audio interface (ASIO drivers).
This is the first decent controller I worked on that established me on the digital DJ era.
I hate it!!
It has 75 backlit rubber buttons (not my favorite as I mentioned before, but much better than Hercules DJ Control mp3),
2 touch-sensitive scratch wheels with top-side function, an Integrated Trackpad with two mouse buttons & a built-in 4-channel out (Master/Booth-Cue) soundcard, with seperate volume knobs & outputs for Master and Booth. It also has a MIDI interface (5-pin in-out) on the back as long as USB connection for audio and MIDI & two pedal inputs.
Xponent has a nice well-built quality, an assymetric Pioneer-style design (which isn't my favorite either), 3 band eq knobs with gain control and kill buttons for each band.
A nice feature is the forward-rewind buttons with the progress meters of the elapsed time of the track on each deck, which I really liked, and the level meters in the middle of the console and the little touchpad which allows you to move your cursor without touching the mouse.
I didn't like the Jogg-wheels at the top, they are a bit confusing giving you the idea that you've setup the console in the wrong way(!) and the rubber buttons aren't the best (did I mention that?!)
Except that you have a nice output for your headphones and an additional booth-out,
rubber loop/reloop buttons, 4 knobs (2 bank selectable) for FX, 4 cue buttons and a pitch fader for each deck.
In the middle there is the 2 channel mixer and a crossfader with transform/'punch-in' buttons on each side. I also didn't like that you have to carry the power supply everywhere, the unit is not usb powered.
The general feeling on this controller is good, you've got plenty of space, pre-out with volume and mix controls, all the needed buttons and faders and even more. The layout IS a bit confusing as I said before but if you can handle that you have an entry-level controller for professional use.
This is what they like to do in M-Audio anyway.