Available for download, Amplifikation Caliburn from Kuassa models classic British amplifiers of the golden age of rock—the type of guitar tones heard on records from Led Zeppelin to the Who and more. If your productions, compositions, or mixes need the classic sound of a Marshall amplifier reconstituted in the box with digital processing, this is the plug-in for you. Three amps were emulated; both channels of which were painstakingly modeled to give you both chiming cleans and roaring leads. Multiple cabinets, microphones, and mic positions were also used. The software works in AU, VST, VST3, and AAX formats, and will operate on Mac and Windows systems.