Snagged it last night. I figured I didn't own an additive synth yet, so what the heck, right?

It's very cool. But not at all what I expected. Their promo video and demo songs make it seem like it's basically Rusko-in-a-box, but that turns out to be a small part of the preset library, and the fact ...

It's generally a good idea to monitor at varying levels, since human frequency perception changes at different SPL's.

That said, a good standard to start with is the K-System reference used by a lot of mastering engineers. That's 85db per side. Easy way to achieve this is to get a mono pink noise ...