I've a Matrix m-Stage desktop amp that I've used for a year or so with a pair of HD650s and have found the 18dB gain setting to be the one that prevents me hitting the stop on the volume pot.
I'll soon have a pair of HD800s, which seem to be moderately easier to drive than the HD650. Does anyone use either the m-Stage or a Lehmann Black Cube Linear with the HD800, and what gain setting do you use?
More generally, is there any drawback to selecting a higher gain? My gut tells me that higher gains will be less well-controlled, but I might be just making that up!
Thanks in advance for any suggestions/tips/teaching on this subject,