Speakers in good shape free of tears in the surround. The Acoustic Research Holographic Imaging Series Center Speaker MC1 is a rare vintage audio component that offers exceptional sound quality and holographic imaging capabilities. This speaker from Acoustic Research is part of a highly sought-after series known for its innovative technology and sleek design. Perfect for audiophiles and collectors looking to enhance their vintage audio setup, the MC1 center speaker delivers an immersive listening experience with its advanced holographic imaging technology.