PreSonus Ampire High Density Pack - Instant Download for Windows and MacThrow your horns and protect your ears, Ampire High Density Pack features three iconic amps and six stompbox effectsall lovingly recreated using State Space Modeling. You also get three companion cabinets impulse response modeled from iconic designs. This Add on for Ampire is ideally suited for guitar players looking for high gain sounds and exotic effects, and is compatible with the third generation Ampire (Studio One version 5. 1. 1 or later)