A few months ago i posted and asked who made good RTA's. I got a reply that Rane, Behringer, and Audio Control were all good. After researching them i decided i would like to purchase the Audio control SA-33055 because it can be run off battery power and has a printer connection Which the other brands didn't have either. Has anyone got an audio control SA-3055 for sale? No luck on Ebay or craigslist.