All our instruments are Audio Unit (AU) and VST 2.0 plug ins (Albino 3, Alpha 3, Organ 3 and SaxLab 2 are also RTAS on Mac). To use our instruments you need

1. a Mac with Mac OSX 10.5, 10.6 or 10.7 or a PC with Windows XP, Vista or Windows 7

2. a AU or VST compatible host software (Logic, Cubase, DP, Energy, Orion, Reaper, Sonar, Studio One