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Marantz 4 is a vintage amplifier produced by Marantz in the 1970s. It is known for its sleek design and warm sound characteristic of Marantz products from that era.

Source-Connect 4 becomes the first Dolby Atmos–certified remote collaboration tool with direct metadata connection to the Dolby Atmos Renderer.
The software supports up to 128 streaming audio channels, handling full Atmos beds, objects, and metadata without re-renders or channel limitations.
Mixers, directors, and stakeholders can remotely attend Dolby Atmos playback and mixing sessions from any location or monitoring setup.