Plato,
I own the Dialogue II and even though it's a great amp it does not reach deep down like my previous tube amp. Granted, my previous system was separates. Anyways, I have changed power cords to MAS ( Audioone Reference ) and also BMA Pinnacle Gold ICs and it's getting there, deeper and also more defined. I was wondering if switching tubes to something besides the KT88 is going to help.