The Sony BRAVIA Theatre Trio is a three-speaker front system; the BRAVIA Theatre Rear 9 and Sub 9 are separate, compatible upgrades that add wireless surround speakers and dedicated bass. Sony lists both add-ons as compatible with the Trio, but independent listening evidence cited here covers a Rear 9 and Sub 8—not the exact Rear 9 and Sub 9 setup.
What the Trio, Rear 9 and Sub 9 each do
The BRAVIA Theatre Trio is the system’s front stage: separate left, centre and right speakers rather than one long soundbar. Sony says the centre handles dialogue, while the left and right speakers broaden the front presentation. Dolby Atmos, DTS:X and IMAX Enhanced are supported with compatible content. Sony also says 360 Spatial Sound Mapping can create up to 24 phantom speakers; these are virtualized positions, not additional physical speakers. The Trio includes a USB Type-C microphone for room calibration. Sony’s Trio product information
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The two add-ons address different parts of the system:
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match- BRAVIA Theatre Rear 9 (SA-RS9): a pair of wireless rear speakers with up-firing drivers and 360 Spatial Sound Mapping. They add physical surround channels to the room.
- BRAVIA Theatre Sub 9 (SA-SW9): a separate subwoofer for low-frequency output. Sony specifies dual opposing 200 mm aluminum drivers and up to 600 W of power; those are manufacturer specifications, not independent measurements.
Neither add-on is included in the Trio itself. The full configuration therefore means three front speakers, the separate Rear 9 pair and the separate Sub 9.
#1 Best Overall
- THREE-UNIT SYSTEM. ONE IMMERSIVE EXPERIENCE: Introducing a simple home theater system with wireless front speakers that matches the scale of even the biggest screen, keeping your room tidy while filling it with surround sound.
- SOUND SHAPED WITH SONY PICTURES ENTERTAINMENT: Created in close collaboration with Sony Pictures Entertainment, this system brings studio-crafted sound into your home, capturing the emotion and detail envisioned by filmmakers
- REWRITING THE RULES OF SURROUND SOUND: Go beyond conventional surround sound with a surround field that stretches wider than the screen, delivering cinematic immersion that pulls you into every scene.
- ULTIMATE SURROUND WITH 360 SPATIAL SOUND MAPPING: Experience the ultimate in home surround with up to 24 phantom speakers in a cinema layout, simulating both direct and reflected sound to recreate the acoustic characteristics of a real cinema. (This feature works with optional compatible rear speaker models SA-RS3S, SA-RS5, SA-RS8, SA-RS9)
- SOUND FIELD OPTIMIZATION: Enjoy a cinematic surround experience calibrated specifically for your room, ensuring every seat is the best seat in the house.
Compatibility and setup
Sony lists both Rear 9 and Sub 9 as compatible with the BRAVIA Theatre Trio. Compatibility can still depend on region, product software and the exact equipment combination, so check Sony’s current compatibility information before ordering. Sony also says Rear 9 can connect wirelessly to certain compatible BRAVIA TVs without a soundbar, but only when the TV appears on its compatibility list. Sony’s Rear 9 compatibility and setup information
Set up the Rear 9
- Confirm the Trio and Rear 9 are supported together in your region and check that their software is current.
- Place the rear speakers where they can serve the listening area, then follow the BRAVIA Connect app’s setup guidance.
- For app-based setup, connect the phone and product to the same home network. Sony notes that app features depend on region, compatible products and software.
- Use the app’s calibration process to account for the speakers’ positions and your room. The available review describes calibration through BRAVIA Connect and says it can account for speaker location and height.
Sony says a swivel wall mount is included with Rear 9. Check the package details for your region if wall mounting is part of your plan.
Rank #2
- COMPATIBLE SONY SOUNDBARS, HOME THEATER SYSTEMS & RECEIVERS: BRAVIA Theater Trio, BRAVIA Theater QUAD, BRAVIA Theater Bar 9, BRAVIA Theater Bar 8, BRAVIA Theater Bar 7, HT-A7000, HT-A5000, HT-A3000, and STR-AN1000.
- BASS YOU CAN FEEL IN EVERY MOMENT: Dual opposing 200 mm aluminum drivers deliver ultra-deep, tightly controlled bass with exceptional clarity. By cancelling unwanted cabinet vibrations, the system reveals low-end detail other setups miss, from subtle rumbles to powerful cinematic impact.
- ROOM FILLING BASS. DUAL SUBWOOFER PLAYBACK: Connect two Sub 9 units (sold individually) for increased sound pressure and more balanced low frequencies throughout the room.
- EASY BASS BOOST WITH DIRECT TV CONNECTION: Connect to a compatible BRAVIA TV to enhance low frequencies without the need for a soundbar or additional equipment. Simple setup delivers deeper, more impactful bass. ((This function works with compatible BRAVIA and the latest software.)
- HARMONIC PRESENCE. BUILT FOR ANY SPACE: A bold form with refined finish. The clean silhouette and hidden cabling keep the large presence sleek from every angle.
Adding a second subwoofer
Sony says two Sub 9 units can be used only with a main system that supports a dual-subwoofer setup, and the two subwoofers must be the same model. Do not assume that adding a second Sub 9 is supported simply because the first one works: confirm the exact Trio configuration in current product documentation.
What independent listening evidence says—and does not say
What Hi-Fi? reviewed the Trio as a 3.0.2-channel system, reporting up-firing drivers in the left and right speakers, HDMI eARC, an HDMI input, Bluetooth, Wi-Fi, and Apple AirPlay, Spotify Connect and Tidal Connect support. These are review-reported details; consult Sony’s current regional specifications for the configuration you intend to buy. What Hi-Fi?’s BRAVIA Theatre Trio review
Rank #3
- 5.1CH SURROUND SOUND: Hear cinematic surround sound and deep bass with 3 front-firing speakers, two rear speakers, and included subwoofer.
- SOUND STRAIGHT FROM CINEMA: Get the best streaming experience with support for Dolby Atmos and DTS:X.
- CLEAR DIALOGUE: Catch every word in the scene with dedicated center channel speaker.
- ROOM FILLING SOUND: Multi Stereo enhances your listening experience by playing the same sound from all speakers, creating a room-filling sound boost.
- BRAVIA THEATER AND BRAVIA TV, THE PERFECT PAIR: Pair with compatible BRAVIA TVs to control the soundbar from the TV menu and take advantage of Voice Zoom 3 for enhanced dialogue.
The reviewer praised the Trio’s scale, immersive presentation and genuine left-right stereo separation. The review also noted that some rivals sounded cleaner or more detailed, that the Trio has no traditional display, and that the centre speaker could buzz slightly on very deep bass passages in the standalone setup.
What Hi-Fi? also tried the Trio with Rear 9 speakers and a Sub 8. The reviewer found that this expanded configuration increased immersion and that moving bass duties to the subwoofer removed the centre-speaker buzz heard in the standalone setup. That listening result applies to the tested Sub 8 combination; it is not evidence of how the Sub 9 version sounds. The cited sources provide no independent listening test or measurements for the exact Trio plus Rear 9 plus Sub 9 configuration.
Rank #4
- UNLEASH THE FULL POTENTIAL OF SURROUND SOUND: Hear cinema-style surround sound all around you with 360 Spatial Sound Mapping.
- ROOM OPTIMIZED SOUND: Sound is auto calibrated to your room’s characteristics with Sound Field Optimization.
- SOUND STRAIGHT FROM CINEMA: Supports industry-standard formats including Dolby Atmos, DTS:X, and IMAX Enhanced.
- INNOVATIVE ACOUSTIC DESIGN: With 11 speaker units, hear exceptional acoustic performance and precise room filling spatial audio.
- EXPAND YOUR SURROUND SOUND: Expand the cinematic experience with optional wireless subwoofer (SW3/SA-SW5) and rear speakers (RS3R/RS5).
How to compare this setup with alternatives
The Trio with both add-ons is most relevant if you want distinct front speakers, physical rear surrounds and a dedicated subwoofer. Compare it with a premium single soundbar, a bar bundled with surrounds and a subwoofer, or a speaker-based system such as Sony’s BRAVIA Theatre Quad. Check the following before deciding:
- Front-channel separation: Does the alternative use separate left, centre and right speakers, or create the front stage from one enclosure?
- What is included: Are rear speakers and a subwoofer in the box, or separate purchases?
- Room and placement: Can your room accommodate the Trio’s separate front units, rear speakers and subwoofer in useful positions?
- Formats and connections: Confirm supported audio formats, HDMI connections and streaming features for the exact model and region.
- Calibration: Check what setup is required and whether the system can account for your speaker positions and room.
- Total cost: Compare the price of the complete configuration, not just the Trio or another system’s base unit.
In its own listening comparison, What Hi-Fi? found the Trio’s separated front channels gave it greater scale than the Sonos Arc Ultra, while the KEF XIO sounded cleaner and more detailed. Those are that publication’s subjective findings, not universal measurements or a direct comparison of the complete Sub 9 configuration.
Best Value
- COMPATIBLE SONY SOUNDBARS, HOME THEATER SYSTEMS & RECEIVERS: BRAVIA Theater Trio, BRAVIA Theater QUAD, BRAVIA Theater Bar 9, BRAVIA Theater Bar 8, BRAVIA Theater Bar 7, HT-A7000, HT-A5000, HT-A3000, and STR-AN1000.
- BASS THAT ELEVATES EVERY MOMENT: A 200 mm aluminum driver delivers deep, impactful bass with extended low-frequency response, adding richness and precision you can feel while bringing greater depth and immersion to every scene.
- ROOM-FILLING BASS. DUAL SUBWOOFER PLAYBACK: Connect two Sub 8 units (sold individually) for increased sound pressure and more stable, balanced low frequencies throughout the room.
- TWO WAYS TO POSITION: The dual-orientation subwoofer offers flexible placement options, complementing any room layout for a sleek, cohesive look.
- EASY BASS BOOST WITH DIRECT TV CONNECTION: Connect to a compatible BRAVIA TV to enhance low frequencies without the need for a soundbar or additional equipment. Simple setup delivers deeper, more impactful bass. ((This function works with compatible BRAVIA and the latest software.)
US launch prices and current-price context
Sony Electronics’ March 2026 US launch announcement gave suggested retail prices of $749.99 for Rear 9 and $899.99 for Sub 9. Those are launch MSRPs, not guaranteed current prices. On 9 October 2026, Sony’s US product pages displayed sale prices of $549.99 for Rear 9 and $599.99 for Sub 9; sale prices can change. Rear 9 product information · Sub 9 product information · Sony Electronics’ March 2026 launch announcement
Sony’s UK announcement said Trio preorders would begin on 27 May 2026, but the available information does not establish a current universal Trio price. US prices and availability should not be assumed to apply in other markets; check Sony’s local store and regional compatibility information before purchase. Sony UK’s product announcement
Should you choose this configuration?
Choose the Trio with Rear 9 and Sub 9 if you specifically want its separate front speakers alongside physical wireless surrounds and a dedicated subwoofer, and your room can accommodate the placements and setup. Treat Sony’s spatial-mapping, driver and power figures as manufacturer claims, and treat the independent review’s expanded-system findings as evidence for Rear 9 with Sub 8 only. If those distinctions matter to your decision, audition the exact combination where possible and verify current regional compatibility, prices and stock.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
