Home › Forums › Products › Rackmount › Eventide GTR 4000 manual(s), options, etc… › Reply To: Eventide GTR 4000 manual(s), options, etc… June 20, 2012 at 4:15 pm #123564 nickroseModeratorEventide Staff Look at the DSP4000 series support page: http://www.eventide.com/AudioDivision/Support/Harmonizers%20and%20Rack%20Products/DSP4000%20Series.aspx Non-free manuals and other stuff are available at the Eventide Store.