Instead of utilizing the industry-standard three-step lacquer process, Mobile Fidelity Sound Lab’s new UltraDisc One-Step (UD1S) uses only one step, bypassing two processes of generational loss. While three-step processing is designed for optimum yield and efficiency, UD1S is created for the ultimate in sound quality. Just as Mobile Fidelity pioneered the UHQR (Ultra High-Quality Record) with JVC in the 1980s, UD1S again represents another state-of-the-art advance in the record-manufacturing process. MFSL engineers begin with the original master tapes and meticulously cut a set of lacquers.

These lacquers are used to create a very fragile, pristine UD1S stamper called a “convert.” Delicate “converts” are then formed into the actual record stampers, producing a final product that literally and figuratively brings you closer to the music. By skipping the additional steps of pulling another positive and an additional negative, as done in the three-step process used in standard pressings, UD1S produces a final LP with the lowest noise floor possible today. The removal of the additional two steps of generational loss in the plating process reveals tremendous amounts of extra musical detail and dynamics, which are otherwise lost due to the standard copying process. The exclusive nature of these very limited pressings guarantees that every UD1S pressing serves as an immaculate replica of the lacquer sourced directly from the original master tape. Every conceivable aspect of vinyl production is optimized to produce the most perfect record album available today.

This was vocalist David Lee Roth’s final record for the band and as such, the album stands as a testament of worth somewhere between high camp and high class. Eddie Van Halen’s venerable, rolling guitar pulled immaculately into place, while his new-found love of the keyboard gave them their first international smash with ”Jump”. However, it is the quite demented rush of ”Panama”, and the hilarious ”Hot For Teacher”, with Roth exuding a droll litany of school-yard fantasies over a thunderous Alex Van Halen backbeat, that gives ultimate credence to the rock ’n’ roll party that was the Roth/Van Halen partnership.