Upgrade from TAD 150 Signature

I am interested what preamp others upgraded from the TAD 150 Signature, price range , and what their findings were after the upgrade.

eagleman672201-11-2010 10:33pm

eagleman6722 OP Details Discussions Posts This discussion Message User 217 posts 02-20-2010 at 02:27pm Copy Comment URL Report Comment Edit Delete Thanks Bbro. I was considering a couple of the preamps on the list so I will keep the TAD...