Up for sale is a Sony STR-K7000 5.1 Channel AV Receiver. Sony STR-K7000 Receiver Unit. Digital Cinema Sound: Sony’s proprietary DSP for a theater-like experience. To enjoy 5.1 surround sound, you will need to connect your audio source (like a Blu-ray player or Roku) via the Digital Optical or Coaxial inputs on the rear panel.
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