The Sony BRAVIA Theatre Trio + Sub 8 + Rear 9 Home Cinema System HTA8KIT.CEK is a complete premium surround-sound package for large-screen TVs. It combines separate left, centre and right speakers with dedicated wireless rears and a powerful 300W subwoofer, delivering clear dialogue, genuine surround effects, overhead Dolby Atmos sound and deep cinematic bass.
- Complete Sony cinema package: Includes the HT-A8 Theatre Trio, SA-RS9 Rear 9 speakers and SA-SW8 Sub 8.
- 360 Spatial Sound Mapping: Creates up to 24 phantom speaker positions around the room.
- 300W Sub 8: A large 200mm driver adds deep, controlled bass without an oversized cabinet.
- Premium Rear 9 speakers: Dedicated woofers, tweeters and up-firing drivers reproduce effects behind and above you.
- Dolby Atmos and DTS:X: Also supports IMAX Enhanced, 8K HDR, Dolby Vision, VRR and ALLM pass-through.
A complete premium home cinema system
The Sony HTA8KIT.CEK combines the three-piece BRAVIA Theatre Trio with a pair of Rear 9 wireless speakers and the slimmer Sub 8 wireless subwoofer.
The separate left, centre and right speakers create a much wider front soundstage than a conventional soundbar. The dedicated centre speaker keeps dialogue focused on the screen, while the Rear 9 speakers add genuine effects behind the seating position.
The complete package delivers a combined manufacturer-rated output of 885W: 405W from the Theatre Trio, 180W from the rear speakers and 300W from the Sub 8.
360 Spatial Sound Mapping
Sony’s 360 Spatial Sound Mapping analyses the position of the physical speakers and creates up to 24 additional phantom speaker positions around the room.
This expands the sound beyond the individual cabinets, producing a wider, taller and more enveloping presentation across several seating positions.
Clear dialogue from a dedicated centre speaker
The centre speaker uses two woofers and a dedicated tweeter, giving voices and on-screen effects their own physical channel.
When connected to a compatible Sony BRAVIA TV, Voice Zoom 3 can increase or reduce dialogue levels without simply changing the overall volume.
BRAVIA Theatre Rear 9 speakers
Each Rear 9 speaker includes a woofer, tweeter and up-firing driver. Together they deliver 180W of rated output and reproduce detailed effects from behind and above the listening position.
The up-firing drivers strengthen Dolby Atmos and DTS:X height effects, while the included swivel wall brackets provide flexible placement options.
BRAVIA Theatre Sub 8
The included SA-SW8 Sub 8 uses a 200mm driver and 300W S-Master digital amplifier to add deeper bass to films, games and music.
Its slim 170mm-deep cabinet is considerably easier to position than Sony’s larger Sub 9, making it a practical choice for premium living-room installations.
The Theatre Trio also supports a second compatible matching subwoofer for stronger and more evenly distributed bass.
Dolby Atmos, DTS:X and IMAX Enhanced
The system supports Dolby Atmos, DTS:X, Dolby TrueHD, DTS-HD Master Audio and multichannel LPCM.
Physical front, rear and up-firing speakers allow compatible soundtracks to place effects around and above the listener with greater accuracy than a front-only virtual-surround system.
Sound Field Optimization
Sony’s automatic room calibration measures speaker position, distance, phase and room acoustics before adjusting the system for the listening area.
The supplied USB Type-C calibration microphone connects to a compatible smartphone, with the BRAVIA Connect app guiding the setup process.
Wireless speaker connection
The left, right, rear and subwoofer units communicate wirelessly with the centre speaker, reducing the need for visible audio cables around the room.
Each speaker still requires its own mains electricity connection.
HDMI 2.1 for movies and gaming
The Theatre Trio includes one HDMI input and one HDMI eARC/ARC output. It supports up to 8K HDR pass-through along with Dolby Vision, VRR, ALLM and Source-Based Tone Mapping.
PlayStation 5 users can also benefit from immersive audio alongside compatible Sony BRAVIA features such as Auto HDR Tone Mapping and Auto Genre Picture Mode.
Music streaming and app control
Wi-Fi, Bluetooth 6.0, Spotify Connect and Apple AirPlay provide flexible music playback. Supported Bluetooth codecs include SBC, AAC and LDAC.
The BRAVIA Connect app handles setup, calibration and everyday sound adjustments. Compatible Sony BRAVIA TVs can also display key controls within the television’s Quick Settings menu.
Specification lookup
| Product | Sony BRAVIA Theatre Trio + Sub 8 + Rear 9 |
| Bundle model | HTA8KIT.CEK |
| Included front system | HT-A8 BRAVIA Theatre Trio |
| Included rear speakers | SA-RS9 BRAVIA Theatre Rear 9 pair |
| Included subwoofer | SA-SW8 BRAVIA Theatre Sub 8 |
| Combined rated output | 885W |
| Theatre Trio output | 405W |
| Rear 9 output | 180W total |
| Sub 8 output | 300W |
| Subwoofer driver | 200mm |
| Spatial audio | 360 Spatial Sound Mapping with up to 24 phantom speakers |
| Immersive formats | Dolby Atmos, DTS:X and IMAX Enhanced |
| HDMI connections | 1 HDMI input and 1 HDMI eARC/ARC output |
| Video support | Up to 8K HDR, Dolby Vision, VRR and ALLM |
| Wireless connectivity | Wi-Fi and Bluetooth 6.0 |
| Music streaming | Spotify Connect and Apple AirPlay |
| Centre speaker dimensions | 589 × 64 × 165mm |
| Left/right speaker dimensions | 160 × 337 × 165mm each |
| Rear speaker dimensions | 154 × 286 × 154mm each |
| Sub 8 dimensions | 390 × 400 × 170mm |
| Wall mounting | Trio and Rear 9 speakers wall-mountable |
Buyer’s Best Pick
The Sony HTA8KIT.CEK is ideal for customers who want the scale and direction of a proper surround system without installing an AV receiver or running speaker cable around the room.
Its main advantage over a conventional soundbar is physical speaker separation. The dedicated left, centre and right speakers create a wider front soundstage, while the Rear 9 speakers deliver genuine surround effects from behind the listener.
The Rear 9 speakers also include up-firing drivers, helping Dolby Atmos sound extend across both the front and rear of the room. This produces a more convincing sense of height than a system relying entirely on virtual processing.
The included Sub 8 is the slimmer 300W model with a single 200mm driver. It provides strong cinematic bass while taking up less floor space than Sony’s larger Sub 9, making it the more practical choice for most living rooms.
The package is especially well suited to 75-inch, 85-inch and larger televisions, where a compact soundbar can sound too narrow. Its main installation consideration is power: every speaker communicates wirelessly but still requires a nearby mains socket.
Overall, this is a strong premium option for buyers wanting clear dialogue, genuine rear surround sound, Dolby Atmos height effects and powerful bass in a cleaner, more straightforward system than traditional home cinema separates.
We pick, pack and dispatch quicker than anyone else in Ireland and delivery is FREE for orders over €500 or otherwise only €3.95 !
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Items sub 30kilos are shipped with DPD Ireland (coffee machines etc).
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We do not currently offer installation in Ireland however we can provide practical setup advice.
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If you've changed your mind about your purchase and it is in its original condition, you're welcome to return it to us within 90 days for store credit or within 30 days for a cash refund. As per below, exclusions apply.
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- We will arrange a pick up via DPD on a suitable date. Refunds will be processed within a few business days subject to verification.
This policy applies to orders placed on the 11/09/2022 & beyond.
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