Boomy bass from subs when using both USB out and Sub out

[jcschlic]

I noticed that when using USB out and Sub out simultaneously I get very boomy/poppy bass from my subs. There are no issues when using line out and sub out simultaneously. It might be that utilizing the USB output renders the sub out crossover useless?

Is anyone else having this issue? I sent in a ticket for it, but I wanted to see if anyone else is having a similar issue.