volume Mainstage 3

Hi!

The volume of output of my Mainstage 3 is kind of low. Compared with other audio apps (iTunes, Future DecksDJ Pro), the volume is almost one third lower in Mainstage. Already I researched a lot and did not think anything about it. This is both the headphone output as external audio card.

All sounds are the gain and volume limit.

Someone would have some explanation for this?

OSX Yosemite

Thanks.