Off-the-shelf might work for most people, but not DJ RhYmEs. Having already done a very tidy fretless fader mod to a Mackie d.2, he has now turned his attention to the issue of a fader in a box, and the results are spectacular. Driven by an Innofader and a Livid Brain Jr, the custom Faderbox V3 brings scratching to a single turntable, as well as MIDI buttons.
