Mix and Master Rig V4 Course Publisher: ASK Video Genre: Music Released: 26 May, 2019 Size: 628.9 MB Price: $6.99 Click here to request a review of this app App Store Info Description Reason’s Mix and Mastering Rig bundle is an exclusive collection of pro mixing and mastering Rack Extensions. In this updated course for V4, producer Mo Volans explains and shows all those amazing REs in action! Screenshots Screenshot 1 of 8