RACK 'EM UP

There is another way to route the audio for headphone cueing. The audio from Reason's browser always runs through a device's stereo outputs, unless the patch you're auditioning has individual output assignments (which is rare). Consequently, you'll need to split a device's stereo output into two stereo feeds, using the Spider Audio Merger & Splitter. Send one stereo feed to a mixer device (such as the Mixer 14:2 or the Line Mixer 6:2) labeled Cue, and send the other stereo feed to a mixer labeled Mix. Take the outputs of the Cue mixer and route them to inputs 1 and 2 on the Hardware Interface. Take the outputs of the Mix mixer and route them to inputs 3 and 4 on the Hardware Interface. Connect the corresponding outputs of your soundcard to the appropriate inputs on your DJ mixer. Use channel 1 on the DJ mixer exclusively for cueing patches and channel 2 for outputting the main mix. To quickly mute and unmute channels on the Mix mixer (thereby adding or removing a device's signal from the main mix), map the mixer's channel mute buttons to keys on a MIDI controller.