The Model 3A Signature is a classic Vandersteen in being an extreme-performance hot rod in a brown paper bag. Prior to the introduction of the Quatro in 2006, the Model 3A Signature alone bridged the Vandersteen line from the Model 2 to the Model 5. The Model 3A Signature is loaded with the quality parts typically found in cost-no-object designs. It's a big speaker that plays really big, and yet fully realizes all of the nuance, finesse and detailed musicality of a Vandersteen.