After long time using Windows apps, i was really impressed today by MainStage engine.Help me please understand, what wrong. Look to that: 1. This is a lot of patches in one Concert: Every patch have 10-7 synths inside, also 16 instances of Camel Audio Alchemy in Concert: This is the CPU when i start to play some patch (also playing 2 Backtraks in this concert): This is a Audio preferences: In other words - is the 400-500 synths now in memory.Â And this is works. Tell me please - this is some mistake? Or illusion ? How it possible ? Or this is some MS engine trick ? What limit of MS internal synths-instances ? This is a NOT CPU depended, right ? I try this test today and i'm shocked by results. I never get more then 9 - 15 synths in one time on Windows (8Gb, 2.6 Quad Core CPU, ASIO was switched to 512 samples - 30-40 MS latency). Only freeze was my best friend on Windows... But now... What the MainStage limit ? How many plug-ins can i load with one Concert ? Can someone say few words about MainStage engine ? p.s. I show screens for 64 bit MainStage. 32 bit version crashed on 71 patch.