ACOUSTICALLY TRANSPARENT CENTER SPEAKER DOOR $499: This open center bay speaker door does not come with a built-in speaker, and is designed to accommodate either a full sized dedicated Center Channel, Stereo or LCR soundbar. Be sure to check out the matching custom LCR soundbar option developed by Next Level Acoustics as part of the Surround Speaker Options. Additional audio format configurations (i.e. center channel only / 2-ch. stereo) are available upon request.