Wikipedia
The LinnDrum (also called the Linn LM-2) is a drum machine manufactured by Linn Electronics as the successor to the Linn LM-1. It was introduced in 1982 at a list price of $2,995. Approximately 5,000 units were sold between 1982 and 1985. The Linn 9000 was the successor of the LinnDrum.
Its high-quality samples, flexibility and affordability made the LinnDrum popular; it sold far more units than its predecessor (the LM-1) and its successor (the Linn 9000) combined. Roger Linn re-used the moniker on the LinnDrum Midistudio and the Roger Linn Designs' LinnDrum II. The LinnDrum was used on many recordings throughout the 1980s, including international hits such as a-Ha's " Take on Me" and Tears for Fears' " Shout." Much of recording artist Prince's early 1980's material also featured heavy use of the LinnDrum. His 1999, Purple Rain, Around the World in a Day, and Parade albums are examples of this.
When Linn Electronics closed in 1986, Forat Electronics purchased their remaining assets and offered service, sounds and modifications for the LinnDrum. The LinnDrum was pre MIDI, but Retrofit Kits were offered by JL Cooper and Forat Electronics.