A dubplate is a term used to describe a one off or exclusive piece of music played by Sound Systems.

From the 50's through to the 90's this invariable referred to an acetate, though from the 90's onwards other formats, firstly DAT (Digital Audio Tape) and minidisc and now CD-R and digital formats have blurred the definition.

The earliest dubplates were recordings of music that had yet to be released that was played on Sound Systems to gauge audience approval and popularity. Later (by the end of the 60's) the trend began to record exclusive mixes that would remain unavailable to purchase in order to enhance the reputation of the Sound System.

In the late 80's the exclusive dubplate developed into the Special. A special is an exclusive mix or recording of a tune that usually has the lyrics altered to mention and praise a specific Sound System. The rise of the special coincided with a decline in the appearance of live DJ's on sound systems.

Whilst the special became prevalent in the 90's the first example of this is probably On The Beach by Owen Gray, recorded in the very late 50's. This contained the lyric "Dancing to the sound of Sir Coxsone Downbeat, on the beach". Whilst On The Beach saw general release in the early 60's on 7" single it was undoubtedly aired on Sir Coxsone's sound on dubplate prior to this.

Original acetate dubplates

Count Lasher on a 7" from circa '60	An early Tubby's plate	An 80's Tubbys plate
Prince Jammy	Later King Jammy	Roof International from 80's/90's
3 from the UK. A Class	Jah Tubbys Studio	Music House
An American plate	An early 2000's Arrows plate	Conroy Smith - My Style/The Devil
Johnny Osbourne - Hanging Tree	King Everald - Long Time Gal	Banana Man - Killa Sound Boy