FWIW if you can get rid of the caps at the output of any preamp it will sound better. 'Better'= more bass extension, more transparent, less coloration.
So far the only preamp mentioned that has no coupling cap (or transformer) at its output is one of the preamps in the original post.
So far the only preamp mentioned that has no coupling cap (or transformer) at its output is one of the preamps in the original post.