At 45 x 4.5 x 3.4 inches, the Arc is longer and taller than many soundbars on the market. So unless you choose to mount it on your wall, you'll need a long enough media cabinet to place the speaker below your TV. The Beam is a more manageable 25.6 x 3.9 x 2.7 inches, and easier to add to your set-up. .