Overview

The Sony HT-A9 Mark 2 (BRAVIA Theatre Quad) is a four-speaker wireless home theatre system that sits between a soundbar and a full AV receiver setup. Four identical, slim wireless speakers can be placed around the room — front left, front right, rear left, and rear right — each with a 3-way front-facing array plus a dedicated up-firing driver, for 16 speaker units and 504W of total system power.

360 Spatial Sound Mapping uses those 16 drivers to create up to 12 phantom speakers around your seating position, reflecting sound off your walls and ceiling for a surround field that fills a large room without a physical 5.1 or 7.1 speaker layout.

The four speakers connect wirelessly to a compact control box near the TV, so only a power outlet is needed at each speaker position. Sony says this second-generation model increases radio output by up to 2.5 times over the original HT-A9, with a switchable dual-antenna and frequency-hopping system for a more stable wireless connection.

Simcoe Audio Video Insight

The Theatre Quad is built for a genuine no-wires theatre setup — real speakers placed front and back, not just a bar bouncing sound off your walls. For our clients in Central Ontario, the appeal is flexibility: because phantom speakers fill the gaps between the four physical units, you don't need perfect placement to get a well-balanced soundstage, which matters in rooms with irregular layouts or furniture you don't want to work around.

More Info

Why the Sony HT-A9 Mark 2 Stands Out

16-Speaker, 4.0.4-Channel Array

Each of the four wireless speakers packs a 3-way front-facing array and an up-firing driver, for 16 speaker units and 504W of total power working together across the room.

360 Spatial Sound Mapping

The system creates up to 12 phantom speakers around your seating position, giving a wider surround field than a conventional virtual-surround soundbar can produce on its own.

Dolby Atmos, DTS:X, and IMAX Enhanced

All three are genuinely certified on this system, so supported movies and select Disney+ titles get the full format treatment rather than basic compatibility.

Wireless Speaker Placement

The four speakers connect wirelessly to a compact control box, so only a standard power outlet is needed at each speaker position — no speaker wire runs across the floor or walls.

Improved Wireless Stability

Sony states this second-generation model increases radio output by up to 2.5 times over the original HT-A9, with a switchable dual-antenna and frequency-hopping system for a more reliable connection between the control box and speakers.

8K-Ready HDMI with Dolby Vision

HDMI passes through 4K and 8K HDR with Dolby Vision, VRR, and ALLM, so a current games console or 4K/8K source keeps its full picture quality running through the system.

Voice Zoom 3 and Acoustic Centre Sync

Paired with a compatible Sony BRAVIA TV, Voice Zoom 3 uses AI to isolate and clarify dialogue, while Acoustic Centre Sync lets the TV's own speaker join in as a centre channel.

Buyer's Guide

Who It's For

• Homeowners who want real physical surround: four independent speakers placed around the room, not a single bar relying on wall and ceiling reflections alone.
• Large or open-concept rooms: the flexibility to place four wireless speakers where they'll actually cover the space, rather than relying on one bar's front-facing coverage.
• Sony BRAVIA TV owners: Acoustic Centre Sync and Voice Zoom 3 tie the TV and speaker system together as one integrated setup.

How It Compares

The Theatre Quad does not include a subwoofer, so pairing it with one of Sony's optional wireless subwoofers is worth planning into the budget for the deepest bass. For a single-bar system on the same 360 Spatial Sound Mapping platform, the Sony HT-A9000 BRAVIA Theatre Bar 9 is the flagship soundbar alternative. For a more affordable Dolby Atmos soundbar with a wireless subwoofer included in the box, the Sony HT-B600 is a simpler, lower-cost entry point. For a dedicated theatre room built around permanent wiring, our team can help design a wired Klipsch Reference Premiere system as a more traditional alternative.