The Wall of Sound (also called the Spector Sound) is a music production formula developed by record producer Phil Spector at Gold Star Studios during the 1960s. The intent was to create a dense aesthetic that came across well on AM radio and jukeboxes popular in the era. Working with engineers Stan Ross and Larry Levine and session musician conglomerate the Wrecking Crew, Spector typified his sound by having a number of electric and acoustic instrumentalists perform the same parts in unison, adding musical arrangements for large groups of musicians up to the size of orchestras, then recording the sound using an echo chamber.