This is a Studer A800 2" tape machine running 7,5 and 15 ips. It is currently set up for 16 track use, to enjoy the better sound of the wider tracks. It can also be set up for 24 tracks, but this involves around 4 hours of work by a Studer tech to calibrate all the audio tracks. So if you want to use 24 tracks we recommend the use of our other machine, the Studer A820.