Record One Studios might look unassuming from its location on Ventura Boulevard and Stern Avenue, but the understated facade actually houses a world-class recording studio. To enter, clients should drive down the alley that runs behind the studio and look for the gate with the call box at the lefthand side. From there, visitors are buzzed in to a first-class audio mixing and recording facility. It's part of the Ocean Way Recording operation. There are two studios here. Studio A is a large film mix room. Studio B is classified as a "medium tracking/overdub" room that can hold groups of up to 25 musicians. Call for details and availability.