I know the Acoustat amp had a very good reputation, but I'm really not familiar with the preamp. Based on Acoustat's reputation I would think it should be a decent sounding piece. Also check for things like heavy-duty gold-plated connectors and possibly a detachable AC cord as those items would make the preamp more desireable.
I have a couple of decent amps floating around my house that I may sell. E-mail me privately if you're interested.
I have a couple of decent amps floating around my house that I may sell. E-mail me privately if you're interested.