Thirteen processed channels
The processor supports flexible immersive layouts, with four subwoofer channels for a more extensive bass system.
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Marantz / AV Processors
AV 20 is a 13.4-channel balanced AV preamplifier for a theater with separate power amplifiers. It combines immersive processing, extensive connectivity, HEOS streaming and room optimization.

Design & engineering
The processor supports flexible immersive layouts, with four subwoofer channels for a more extensive bass system.
Use its preamplifier outputs with suitable external amplifiers. AV 20 does not power passive speakers directly.
Connectivity and calibration tools let the system be configured around the room, sources and loudspeaker arrangement.
AMP 20 is the twelve-channel partner in the same design family. Additional amplifier channels depend on the chosen layout.
Powered by HEOS
Use the HEOS app for supported music services and compatible network music. Group compatible HEOS devices for multiroom playback, or choose a different source in each room where the system supports it.
Service availability depends on region and account. Subscriptions, compatible devices and current firmware may be required. The specifications below identify this model’s supported formats and connections.
From Marantz
Technical reference
Technical data from Marantz’s US product page. Power ratings use different loads and test conditions; read the complete entry when comparing models. A dash means no value is supplied. Unsupported or malformed source entries are identified where encountered.
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