Hi @jesse c, thank you for reaching out to the Sonos community. I appreciate you for letting us know your concern. I’d be happy to help you here.
The Sonos Arc was designed to use a tabletop orientation by sitting on a surface, or to be wall-mounted below your TV. If you plan on using Arc in an entertainment center, we do recommend at least 5.5 inches to be clear above Arc so the up-firing speakers have enough room to create crisp, vertical channels.
For optimal listening, the Sonos Arc smartly detects when it is attached to the mount and automatically adjusts the EQ to temper bass resonance from the wall. You can adjust the bass, treble, balance, or loudness of your Sonos speakers can be done in a few simple steps using the Sonos app depending on your preferred sound. You can tune your Sonos speakers with Trueplay. Trueplay measures how sound reflects off walls, furnishings, and other surfaces in a room, then fine-tunes your Sonos speaker to make sure it sounds great no matter where you've placed it.
We can wait for suggestions and feedback from our Sonos community members, they might provide a suggestion about this. You may also contact our Sales specialists through phone or email where you can send the floor plan for further assistance. If you need help with any other information, please be sure to let us know.