Sony BRAVIA Theatre Sub 8

Sony is launching with the BRAVIA Theatre Sub 8 (SA-SW8) a new generation of wireless subwoofers for its home theater range. Positioned just below the Sub 9 and its two opposing drivers, this model takes a more compact approach: a single 200 mm aluminum driver, but the same 300 W power and, for the first time in the range, the ability to operate as a pair with a second identical subwoofer.

A 200 mm aluminum driver and 300 W of digital amplification

The Sub 8 relies on a 200 mm bass driver with an aluminum diaphragm, powered by a 300 W S-Master digital amplifier. This type of amplification, which Sony has long used in its audio products, stands out for its high efficiency and low distortion at high volume. The aluminum diaphragm, more rigid than a paper or polypropylene cone, limits deformation during large driver excursions, resulting in more precise bass, less blurred in fast transients (gunshots, percussion, physical impacts in soundtracks).

Compared with the older SA-SW3 and SA-SW5 subwoofers in the range, the Sub 8 moves to a larger driver (200 mm versus 160 mm for the SW3 and 180 mm for the SW5) while retaining the SW5’s power. The increased diaphragm area allows it to move more air and reach lower frequencies without strain.

Dual orientation and discretion in the living room

At 390 × 400 × 170 mm and 12.2 kg, the Sub 8 remains relatively compact. Its special feature: it can be placed vertically or horizontally depending on the room layout. Standing upright, it takes up the space of a small side table; laid flat, it slides under a low cabinet or along a wall. Cable management is integrated into the chassis to reduce visual clutter. The power cable is the only wire needed, since the audio link with the soundbar or compatible system is wireless.

The finish is understated, in keeping with the BRAVIA Theatre range. Sony has opted for a recycled fabric covering (87% according to the brand) and packaging made mostly from recycled paper, an environmental effort the manufacturer is highlighting across its entire 2026 range.

Wireless connection and pairing via QR code

Setup is done through the BRAVIA Connect app, available on iOS and Android. A raised QR code on the subwoofer (the tactile relief also helps visually impaired users locate the code) starts the pairing procedure. Once connected to the home Wi-Fi network, the Sub 8 is automatically recognized by the compatible soundbar. No audio cable, no complex setup: the bass level can be controlled from the app, from the BRAVIA TV remote control, or via the TV’s Quick Settings menu.

Power consumption in standby drops to 0.3 W, with automatic standby after 20 minutes of inactivity. In operation, the subwoofer consumes about 55 W.

Two subwoofers to smooth room modes

This is the most notable new feature: the Sub 8 supports paired operation. By placing two identical subwoofers in different locations in the room, you reduce “room modes,” those resonances and cancellations related to the room’s acoustics that create areas where the bass is too strong and others where it disappears. Two spaced bass sources naturally smooth the frequency response in the listening area. This dual-subwoofer configuration is available at launch with the BRAVIA Theatre Bar 7, and will be extended to the Bar 8 and Bar 9 through a software update.

Broad compatibility with the Sony ecosystem

The Sub 8 works with an extensive list of Sony products: the BRAVIA Theatre Bar 9, Bar 8, and Bar 7 soundbars, the BRAVIA Theatre Quad multichannel system, the HT-A9, the older HT-A7000, HT-A5000, HT-A3000 soundbars, as well as the STR-AN1000 and TA-AN1000 home theater amplifiers. This backward compatibility makes it possible to add the Sub 8 to an existing system without starting from scratch.

One point to keep in mind: the dual-subwoofer function is not available with all these devices. Only the recent soundbars (Bar 7, then Bar 8 and Bar 9 after update) support it.

Technical specifications

Audio

• Type: active wireless subwoofer
• Total power: 300 W
• Amplification: S-Master digital amplifier
• Number of channels: 1.0
• Speaker: 200 mm (bass)
• Deep and dynamic bass reproduction, ideal for movie soundtracks and immersive content

Connectivity and features

• Wireless connection with compatible soundbars and systems
• Dual subwoofer option to enhance acoustic pressure
• Compatible app: BRAVIA Connect (setup and control)
• Simplified pairing via QR code
• Quick setup and smooth user experience

Design and integration

• Compact and elegant format
• Flexible positioning: vertical or horizontal
• Integrated cable management
• Understated finish for discreet integration
• Designed to integrate easily into a living room or dedicated installation

Dimensions and weight

• Dimensions (W x H x D): 390 x 400 x 170 mm
• Weight: 12.2 kg

Power consumption

• Operating power consumption: 55 W
• Standby power consumption: 0.3 W
• Auto standby: after 20 minutes

Compatibility

• Compatible Sony systems:
  • BRAVIA Theatre Quad
  • HT-A9
  • BRAVIA Theatre Bar 9 / 8 / 7
  • HT-A7000 / A5000 / A3000
  • STR-AN1000 / TA-AN1000

Box contents

• Power cable
• Reference guide
• Warranty card

Key points

• Powerful and immersive bass (300 W)
• Simple and fast wireless connection
• Option to add a second subwoofer
• Easy integration into any type of interior
• Perfect complement to BRAVIA Theatre systems

General information

Wireless subwoofer designed to enhance the impact of Sony BRAVIA Theatre home theater systems with powerful, deep, and perfectly integrated bass.