Thought you got a pair of EXO-050's on AA? I am running Paramour 45's with EXO-45Ni and BCP-15. This was a tremendous upgrade. Everything got better...timbre, imaging, soundstage, frequency extension. I am going to replace the cathode cap and the PS 47uf caps with oilers, but the additional improvement is likely to be rather subtle! Hard to imagine the amps getting much better!!
Cheers,
Geary