The project was a four-year undertaking at by a dedicated team of engineers, including Guy Massey, Steve Rooke, and Sam Okell.

: Engineers went back to the original British master tapes rather than using later-generation copies. Mono vs. Stereo : Sgt. Pepper's Lonely Hearts Club Band (Remastered 2009)

Released on September 9, 2009, the of Sgt. Pepper's Lonely Hearts Club Band represents a massive technical upgrade to the original 1987 CD release. While the 1987 version was often criticized for a thin, "painful" high-end edge, the 2009 remaster provides a warmer, more "vinyl-sounding" feel with significantly improved bass and clearer instrument separation. The 2009 Remastering Process The project was a four-year undertaking at by