Here's another gem from the Scope development community.  Not only is it a way of setting up a separate mix for your headphones in terms of EQ but it provides crossfeed control.  Crossfeeding blends the left and right stereo channels slightly, reducing channel separation and making the music sound more natural such as if you were listening to it on speakers.  A useful facility for mixing and mastering in a noise restricted environment.

Below, the device developer Shroomz~> provides a quick start guide to help you get going using this device.

• Connect CAN CONTROL in-line before your headphone monitoring output.

• Turn the CAN CONTROL master volume level down low.

• Play some music. Pink Floyd's 'Dark side of the moon' is a good example of music that benefits from crossfeed, but there are many others (most in fact).

• Turn the master volume back up to a listening level that you're happy with.

• Mute the left (L) or right (R) hand side with the mute buttons at the top corners of the green window so that you're only listening to one side.

• Switch on & off the crossfeed with the round black button labeled 'X' or by clicking the crossfeed on/off switches in the green window.

• Play with the 'High Loss F' (frequency) and 'High Loss G' (gain) & 'Delay' parameters to adjust to your own head for a sound coming at an angle in front which sounds as close as possible to what you hear from your monitor speaker on that side instead of inside your head like you would normally hear on your headphones (especially closed back types). You won't hear any difference with a mono record, but for sounds recorded only on one channel & in between, you should get a significant effect that gives a sense of some extra space.

• Adjust the crossfeed gain (X Gain) and left/right gain (LR Gain) parameters if necessary.

• Switch the muted channel back on, so that you're now listening to both left and right hand sides.

• Adjust master EQ section parameters if necessary. You may find the need to cut bass frequencies between 250-500Hz by 1 to 2dB using the Low Shelf, but in some cases you may not! It's a balance of what you're monitoring & personal taste.

• Use your ears and some trial & error adjusting and listening to different types of music, saving yourself some presets with settings you're happy with as you go.

If you wish to get technical in setting up CAN CONTROL you can follow some of the procedures above using sine waves or filtered pink noise, but you have to submit pictures to this thread of you wearing your lab coat.  That should be enough to get you started.