I think his unit is the UK version of the 575R.  I'm pretty sure I saw this model he owns on the Intern. Casio Site.  If it's not the 575R it's the model before it.
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GEAR:  Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller).  SOFTWARE:  Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.