Hi! This is partially question and another part request, cos I know the answer So is there dsp plugin for Headphone crossfeed, or can I do it right with current stuff? I have allready mixed channels like this: Wheres pans are set to 50/50, and crossing channels cut down to 33% in mono mixes. Problem is that thats not all, there should be ~0.3 ms timeshift in crossover signal. Delay should be lower at higher frequences to prevent shadowing effect. Allso some frequency shaping ( cutting down lower frequences of crossover signals ) for good acoustic effect might be required... EDIT: Here's an guide to DIY device for correct crossfeeding with some theory, for those who are interested EDIT2: Another good link. Search for a "The Psychoacoustics of Headphone Listening" Dsp coders, here's you're next challenge ....which reminds me - is there any tutorial / document to dsp-coding? I thought that maybe I could make simple timeshifter, even that's better than nothing.