The Sonar control surface is for any version of Sonar but, you will notice a difference particularly in version of Sonar from 6 and beyond. The firmware is the basic instructions that the unit needs to function and you will definite want to update that. Regards, Phil Muir P J Muir Productions, Music And Audio Production Telephone: US (615) 713-2021 UK+44-1747-821-794 Mobile: UK +44-7968-136-246 E-mail: info@xxxxxxxxxxxx URL: www.philmuir.com/