STR-AN1000

The STR-AN1000 deserves a serious look from anyone who can't physically run ceiling speakers. 360 Spatial Sound Mapping is Sony's purpose-built Atmos-virtualisation engine, and unlike most "virtual surround" gimmicks, it's a real piece of engineering: the AVR uses the front and surround speakers to synthesise apparent overhead positions, with a calibration pass that measures speaker placement and adjusts the virtualisation accordingly.

What that means in practice: if you're renting, in a listed building, dealing with a vaulted ceiling, or simply can't drill into a plaster ceiling above your sofa, 360 SSM gets you something that reads as Atmos-style overhead effect without the physical channels. It is not the same as four real in-ceiling speakers — physical Atmos has localisation and dynamic range that virtualisation can't fully replicate — but it's a credible approximation, and that matters.

Sonically the AN1000 is energetic. Sony's house voicing pushes transient response forward — closer to Yamaha's Aventage character than to the gentler Marantz or cleaner Denon at the same price. Action effects feel snappier, dialogue carries clean. 100W per channel gives proper amplifier headroom for most living-room speaker pairings.

The honest constraint is the room-correction stack. DCAC IX is Sony's own algorithm — locked to the ecosystem, no Audyssey or Dirac upgrade path. You're picking the AVR for 360 SSM and accepting the calibration that ships with it.

The interesting alternative — 360 Spatial Sound Mapping is genuinely useful for builders who can't run ceiling speakers.