I'm selling strictly due to size. The solo>duet stack is transportable but not pocketable. Most of my listening is on the go (office, commute, front porch, etc) and I just find myself less and less willing to deal with the bulk, so I'm looking to replace it with something pocketable. Most likely a high end dap. If money were no object I would definitely keep it but must sell to fund a dap (solo alread sold). I'll miss how well the F111 scales with it, especially connected balanced.
Makes total sense. Portability is a key issue. Thanks for the quick reply. Your comment triggers one more question if you don't mind. Do you hear a noticeable difference when connected balanced mode? Some folks don't notice a difference in reviews of other gear - I have always been a big believer conceptually (and love my all-tube balanced amp for the home) but never really AB tested the difference versus single-ended.