I've got a very high CPU load (60% on a Mac book Dual core 2,1 GHz) and audio drops using reverbs at 96kHz even with a 8192 Neb buffer. My config : OS 10.6.8 (same problem on a Mac Pro and a Mac book) Nebula server 1.3.505 audio unit used in local mode (no server) Reaper or Wave Editor, Only one track and one instance of Nebula Reverb loaded with VNXT140 3,5 or EAR Hall at 96 kHz. Do you guys have already observed this ? What is wrong in my config ? Thanks.