Can't think of the name of it, but it's the main control box to the surround sound system. Input, setting, volume adjust, all that fun stuff. Basically mine is a Logitech Z-5500. It's a good system considering I got it from Ebay for around $350 or so about ten years ago. Also, if it helps, and Amazon link:

https://www.amazon.com/Logitech-THX-Certified-Digital-Surround-Speaker/dp/B0002WPSBC

As for making sure they don't have any virtualization effects enabled, I have no idea how to do that, so I don't think anything like that is enabled since this is a fresh install. Also what do you mean by SBX...sorry for the newb questions, but I really don't understand how to do this, and while I could try on my own, I think asking for help would be the more expedient route. That said I do plan to give a look through SBC again just to familiarize myself with something I might have missed.

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EDIT: I went to Control Panel -> Sound -> Selected Speakers -> Properties, and there wasn't an enhancement tab. I tried changing the settings a little, but it didn't make any difference.