Phase 4 Stereo was a branch of Decca and its American label London Records created in 1961. Phase 4 Stereo supposedly created better sound by being recorded on a 10-channel, and later 20-channel, recording console. Approximately two hundred albums were released under the label, including popular music, "gimmick" records engineered to make the sound travel from speaker to speaker, records featuring percussion effects, and historical sound effect records.