I've compared this to others and would not exchange my Grid for anything, based purely on quality of audio reproduction, except for a Grid with a remote (!). Fantastic pre. It seems to combine the best of both tube sound ("smoothness without glare) and SS (detail and clear bass). Wonderful, 3D, spacious sound, with terrific imaging. The only other pre I've heard that I like almost as much was my friend's Bent TX102. I think it costs more than your limit, but forget what it's cost is.
Good luck,
Andy