At CES 2018, Denon announced its new 13-channel AVR, the AVR-X8500H. Concurrently, Marantz unveiled a new 13-channel preamp/processor. The AVR-X8500H ($3999) is an immersive audio powerhouse. It offers Dolby Atmos, DTS:X, and Auro-3D. One of the most …
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