When did they quit making 45 RPM records?

The 45 RPM record was introduced by RCA Victor on March 31, 1949, the 45 RPM record was a smaller, more portable alternative to the larger 78 RPM records that were popular at the time. The 45 RPM format featured a 7-inch diameter disc with a large center hole, which required a new type of turntable.

Initially, the 45 RPM records were monaural, but as stereo recordings became popular in the 1960s, they were produced in stereo by the early 1970's. The format quickly gained popularity, especially among teenagers, due to its affordability and portability. It became the go-to format for singles, jukebox hits, and early rock and roll music.

This format began losing its popularity to cassettes in the 1970's and CDs in the 1980's. By the 1990's production in bulk was pretty much gone. Vinyl records have made a comeback and 45 rpm records are still in production in 2024 according to Discogs.com. In fact, vinyl often outsells CDs and digital downloads.

45 RPM records can offer better sound quality than 33 RPM records. The higher rotation speed of 45 RPM allows for a wider frequency response, and the larger available surface area allows for less compression of any signals with a wide amplitude. Bass is an example of a wide amplitude signal that sounds better on 45. Overtones and high treble are also better. It's why many audiophiles prefer 45 RPM for their favorite tracks.