The Tascam Portastudio 244, introduced in 1982, improved upon the previous design with overall better sound quality and more features, including: dbx noise reduction, dual/concentric sweepable EQ's, and the ability to record on up to 4 tracks simultaneously.[6] In general, these machines were typically used by amateur and professional musicians to record demos, although they are still used today in lo-fi recording. The analog portastudios by TASCAM (a division of TEAC) and similar units by Fostex, Akai, Yamaha, Sansui, Marantz, Vestax, Vesta Fire, TOA, Audio-Technica, Peavey, and others generally recorded on high-bias cassette tapes. Most of the machines were four-track, but there were also six-track and eight-track units. Some newer digital models record to a hard disk, allowing for digital effects and up to 32 tracks of audio. https://www.vintagedigital.com.au/tascam-244-portastudio/ Powers up, the tape belt needs replacement.