Sony BRAVIA 8A 77XR8A
Overview
The BRAVIA 8A 77XR8A represents the convergence of decades of Sony expertise in display and audio technologies. This 77-inch (195 cm) OLED TV is built on a refined WOLED panel and the Cognitive XR processor to create an open window onto visual and sonic worlds of remarkable fidelity. More than just a screen, this model embodies the Japanese philosophy of monozukuri—the art of creating objects with precision and passion—by turning every pixel into a promise of visual quality.
A monolithic design that redefines integration into your living space
The design of the BRAVIA 8A 77XR8A breaks with the usual conventions of OLED TVs. Unlike competing models that adopt an ultra-thin silhouette at the top with a pronounced bulge at the bottom, Sony has opted for a uniform thickness of 3.8 cm across the entire height of the unit. This “One Slate” approach creates a monolithic panel that seems to float in space, especially when the TV is wall-mounted.
The T-shaped feet, available with a brushed metal finish, offer four distinct configurations. You can place them at the edges for maximum stability on a wide stand, move them toward the center for narrower supports, or use two specific positions that raise the screen a few centimeters to slide a soundbar underneath. This unusual flexibility reflects deep consideration of real-world installation constraints in modern homes.
The perimeter frame features a textured finish that resists fingerprints and dust. The slightly thicker lower metal strip discreetly integrates the infrared sensor and standby light, preserving the visual purity of the whole. A clever cable management system hides them behind a removable cover, maintaining a clean aesthetic even in profile.
OLED technology elevated by the XR Cognitive processor
At the heart of this TV beats the XR Cognitive processor, a chip that represents a philosophical break in image processing. Rather than analyzing color, contrast, and sharpness separately as conventional processors do, the XR divides each image into several hundred zones and performs a cross-analysis of all parameters simultaneously. This cognitive approach naturally identifies areas where the human eye instinctively focuses—typically faces or moving elements—to apply priority processing to them.
The WOLED (White OLED) panel has more than 8 million self-emissive pixels, each capable of turning off completely or shining independently. This fundamental characteristic delivers absolute blacks with theoretically infinite contrast. XR Contrast Booster 15 pushes this capability even further by analyzing the light distribution of each scene to dynamically optimize highlight brightness without compromising black depth. In practice, this results in nighttime scenes where stars sparkle with surgical precision against an inky sky, while explosions and reflections retain their visual impact.
XR Triluminos Pro processing leverages an extended palette covering a large portion of the DCI-P3 spectrum used in cinema. The algorithms analyze not only saturation and hue, but also the chromatic relationships between objects to reproduce the subtle color variations we perceive in reality. Skin tones, particularly delicate to render, benefit from dedicated processing that preserves ethnic nuances without veering into oversaturation or artificial pallor.
Acoustic Surface Audio+: when the screen becomes an acoustic diaphragm
Acoustic Surface Audio+ is arguably the boldest innovation of the BRAVIA 8A. Instead of housing tiny speakers in the chassis, Sony uses the panel itself as an acoustic transducer. Two pairs of actuators strategically positioned behind the screen generate controlled vibrations that transform the entire surface into a 195 cm diagonal sound membrane.
This approach offers substantial acoustic advantages. Sound emanates directly from the visible on-screen action, creating spatial coherence impossible to achieve with conventional speakers firing toward the floor or walls. Dialogue genuinely seems to come from actors’ mouths, ambient sounds naturally envelop the scene, and effects precisely track on-screen movement. The system also includes three 10-watt amplifiers dedicated to mids and highs, complemented by two 13-watt channels for low frequencies, totaling 56 watts of power.
Integration with Sony soundbars via the Acoustic Centre Sync function deserves special mention. Rather than disabling the TV’s speakers when a soundbar is connected, the system turns them into the center channel, creating a three-front-channel configuration where dialogue remains anchored to the screen while music and effects extend laterally. This synergy preserves precise sound localization while enriching the overall soundstage.
A gaming platform designed for PlayStation 5
Sony naturally optimized the BRAVIA 8A to take full advantage of its PlayStation 5 console. Beyond standard HDMI 2.1 support with 4K at 120 Hz, VRR (Variable Refresh Rate), and ALLM (Auto Low Latency Mode), the TV incorporates exclusive features that create a unique symbiosis with the in-house console.
Auto HDR Tone Mapping analyzes the metadata sent by the PS5 to instantly adjust the brightness curve based on the displayed content. Dark games like survival horror gain detailed shadows without losing their oppressive atmosphere, while colorful titles burst with vibrancy without excessive saturation. Auto Genre Picture Mode intelligently switches between different presets depending on whether you’re playing a fast-paced FPS that requires maximum responsiveness or watching a cinematic sequence that calls for filmic colorimetry.
Input latency, crucial for competitive gaming, drops below the 10-millisecond mark in Game Mode, placing the BRAVIA 8A among the most responsive OLED TVs on the market. XR OLED Motion processing minimizes motion blur without introducing artifacts, preserving the smoothness of fast pans and the legibility of scrolling text. The PS Remote Play feature even lets you stream your games from a PS4 or PS5 located in another room, turning the TV into a remote gaming terminal.
Google TV and the modern connected ecosystem
The Google TV interface succeeds Android TV with a more refined approach to content aggregation. Rather than a simple app grid, the interface presents a personalized home page that brings together recommendations from Netflix, Disney+, Amazon Prime Video, and other services into a unified feed. The algorithm gradually learns your preferences to refine its suggestions, creating a more organic discovery experience.
Native Chromecast and Apple AirPlay 2 integration ensures universal compatibility with mobile ecosystems. Wi‑Fi 6 (802.11ax) support provides sufficient bandwidth for 4K HDR streaming even in crowded network environments. Bluetooth 5.3 allows simultaneous connection of multiple audio devices, with the interesting option to stream sound to wireless headphones while keeping the main audio output active—handy for couples with different schedules.
Compatibility with BRAVIA CAM (sold separately) opens up interesting possibilities. This motorized camera analyzes your position in the room to automatically optimize picture and sound, adjusts dialogue volume based on your distance, and even enables gesture control to change channels or adjust volume without a remote. Video chat features turn the TV into a giant videoconferencing terminal, especially appreciated for family calls.
Sony Pictures Core: a direct bridge to Hollywood studios
The inclusion of Sony Pictures Core (formerly BRAVIA Core) represents a unique advantage stemming from Sony’s position as a media conglomerate. This proprietary streaming platform offers privileged access to the Sony Pictures Entertainment catalog with technical quality superior to competing services. Films are encoded up to 80 Mbps in Pure Stream, approaching the quality of physical UHD Blu-ray discs.
Sony Pictures Core Calibrated Mode automatically adjusts picture settings to match the exact calibration conditions of Sony’s studios. This calibration goes beyond simple generic presets by taking into account the specific metadata of each production. IMAX Enhanced-certified films benefit from special processing that preserves the expanded aspect ratio and optimizes DTS:X sound dynamics to recreate the scale of IMAX screenings.
Netflix Calibrated Mode and the new Prime Video Calibrated Mode apply a similar philosophy to their respective content, ensuring that series and films from these platforms display according to the creators’ intent. This proliferation of calibrated modes reflects Sony’s desire to position the BRAVIA 8A as a reference-grade consumer monitor rather than just a television.
Documentation
Technical data sheet
FrenchDurability index
FrenchEuropean product sheet
French
Technical specifications
Screen and display technology
- Technology: OLED with self-emissive pixels (8+ million pixels)
- Resolution: 4K UHD (3840 × 2160)
- Size: 77” (195 cm)
- Native refresh rate: 100 / 120 Hz
- Picture processor: XR Cognitive Processor
- HDR formats: HDR10, HLG, Dolby Vision
- Color gamut: XR Triluminos Pro
Advanced audio technologies
- Acoustic Surface Audio+: the screen acts as the speaker
- Power: 2 × 13 W + 3 × 10 W
- Audio formats: Dolby Atmos, DTS:X, DTS-HD Master Audio
- Acoustic Centre Sync: compatible with Sony soundbars
- 3D Surround upscaling: via Vertical Surround Engine
Gaming and performance
- HDMI 2.1: 4K at 120 Hz, VRR, ALLM, eARC
- Input latency: Auto Low Latency Mode
- PlayStation 5 optimization: with automatic HDR tone mapping and Auto Genre Picture Mode
- PS Remote Play: remote control of PS4 / PS5
Professional calibration
- CalMAN Ready: professional auto-calibration
- Netflix Calibrated Mode: certified studio mode
- IMAX Enhanced: IMAX certification for premium content
- Calibrated Mode: collaboration with studios (Netflix, Amazon Prime)
Smart TV and wireless connectivity
- Operating system: Google TV
- Wi‑Fi: Wi‑Fi 6 (802.11ax)
- Bluetooth: 5.3
- Chromecast: built-in
- Apple AirPlay 2: compatible
- BRAVIA CAM: compatible (optional camera)
Physical connectivity
- USB ports: 2
- Digital output: 1
- HDMI: 4 ports (including 2 supporting 4K at 120 Hz)
- Ethernet: 1 LAN port
- Satellite: 2 inputs
- Antenna: 1 cable output
Power consumption and eco features
- Energy class: E
- Power consumption: 619 W in operation / 0.5 W in standby
- Annual consumption: 107 kWh / 1000 h SDR
- Light sensor: automatic adjustment
- Materials: remote control 80% recycled plastic
Dimensions and weight
- Without stand: 171.3 × 98.4 × 3.8 cm / 32.3 kg
- With stand: 171.3 × 101.2 × 40.5 cm / 34 kg
- VESA mount: compatible (450WL-SU)
- Stand positions: 4 possible configurations
Frequently Asked Questions
Is the BRAVIA 8A really different from the standard BRAVIA 8 model (XR80)?
The BRAVIA 8A shares the same OLED panel and XR processor as the standard XR80 model. The main difference lies in the absence of the Sony Pictures Core package with its credits and included films. The 8A also lacks the most advanced form of XR Contrast Booster, which may slightly affect peak brightness in certain HDR scenes. The supplied remote is also more basic, without backlighting.
How does Acoustic Surface Audio+ work in everyday use?
The actuators create sound waves by vibrating the panel at inaudible frequencies sufficient to generate sound. The effect is particularly striking with dialogue, which genuinely seems to emanate from the on-screen characters. For bass, two traditional woofers complete the setup. The system automatically adapts to the content: more direct for dialogue, more diffuse for background music.
Is the lack of additional HDMI 2.1 ports limiting?
With only two HDMI 2.1 ports out of four, you’ll have to make choices if you have multiple 4K/120Hz sources (PS5, Xbox Series X, gaming PC). An external HDMI 2.1 switch can solve this problem but adds complexity. For most users with a single next-gen console and an eARC soundbar, the two ports are more than sufficient.
- Eco-contribution included in the sale price.
- Spare parts available for 7 years
- Manufacturer reference: K77XR8AB.CEI
- GTIN / EAN: 4548736174863



















