ReValver Mk II
ReValver Mk III is is a follow up of ReValver (Direct X) which was on of the first decent guitar amp modeler for the PC. It models several amps and effects.
ReValver Mk III is a tube amp modeler both in the VST format -i.e. VST for Windows and VST/AU for Mac OSX. But it alså is a standalone application with a Live host ASIO/WDM (Windows) and CoreAudio (MacOSX). That means you can run your VST-plugins for your guitar through ReValver.
with a lot of detail, and most of all, capturing the true nature of the vacuum tube sound. Over 15 programmable features of each tube stage can be set with a graphical interface. Every tube in all amps can be tweaked. As many as 17 tube types are included to choose from.
PS: You may need to utdate your sound card ASIO drivers, or install the universal ASIO driver. See ASIO.