Just installed a new Apollo USB and been testing the new setup.
Running a very basic 24/48 project with only 3 instances of Kontakt 5 and with the buffer set to anything less than 2048 the realtime meter is maxing out constantly, leading to horrendous crackling. Asio-guard alleviates this somewhat and lets me drop the buffer down to 64, but the realtime meter is still running over 50%. With a big project loaded it’s completely unusable no matter what my settings are.
Did an identical test on PT12 and have none of these issues, tried cranking it to 50 simultaneous Kontakt instances and it still barely registers on the CPU.
Happens in 8.5 and 9. I used to have a UR-44 but had to ditch it because of compatibility issues that have never been addressed (spotting the Steinberg theme here?!), however I could still run huge 24/96 projects with a 64 buffer and never ran into issues like this.
I realise this is a UAD/Cubase compatibility issue so have also posted this on their forums, but if anyone has got any ideas I’d be very grateful because this is creating real problems at the moment!