Sony BRAVIA Theater Sub 9 Premium Wireless Subwoofer
Sony BRAVIA Theater Sub 9 Premium Wireless Subwoofer for Soundbar SA-SW9 Compatible with BRAVIA Theater (Trio, Quad, Bar 9/8/7), HT-A7000/A5000/A3000, Direct Connection to Compatible BRAVIA TV
- 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.
- DO IT ALL WITH THE BRAVIA CONNECT APP: Easily control the Sub 9 from your smartphone. The BRAVIA Connect app guides you through initial setup and lets you adjust volume, sound field, sound optimization, and more.
- EFFORTLESS CONTROL WITH THE BRAVIA TV: Control bass sound easily with your BRAVIA TV remote. Sound settings automatically appear on the BRAVIA Quick Settings menu for easy control of features.
Premium bass. Depths revealed. The BRAVIA Theater Sub 9 uncovers ultra-low frequencies with precision using dual opposing 200 mm aluminum drivers to deliver deep, tightly controlled bass with minimal distortion and vibration. Bass you can feel throughout the room without the trembling.
| SKU: | B0GSC3F2Q8 |
| Weight: | 51.4 pounds |
| Brand: | Sony |
| Model: | SASW9.UC2 |
| Colour: | Black |
| Manufacture: | Sony |
| Colour: | Black |
From the manufacturer


Room-filling bass. Dual subwoofer playback.
Connect two subwoofers (sold individually) for a stronger, more balanced low end. The increased sound pressure fills the room with deep bass that’s powerful, stable, and unmistakably cinematic.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.sony bravia theater





BRAVIA Theater Sub 9
Special Features
Slim and compact design for balanced bass
Special Features
Rich bass extension deep into low frequencies
Special Features
Powerful premium bass that extends into ultra-low frequencies
Subwoofer dimensions
13.875″ W x 14.125″ H x 5.375″ D
Subwoofer dimensions
15.375″ W x 15.75″ H x 6.75″ D
Subwoofer dimensions
15.375″ W x 15.75″ H x 13.875″ D
Driver units for bass
130mm driver unit
Driver units for bass
200mm large driver unit
Driver units for bass
Two opposing 200mm driver units
Speaker cabinet
Bass reflex
Speaker cabinet
Bass reflex
Speaker cabinet
Sealed enclosure






worthy upgrade from sw5
Been enjoying my Sony HT-A9 for last couple years. (with the SW5).
Only disappointment was the SW5’s boominess. I looked at doing the external subwoofer mod (to connect my Paradigm sub) but more hassle than anything else. Then the sub 9 was released and on sale…
Sub 9 had some issues getting to me, first one was lost in shipping. Second one arrived securely in box (well packaged). Just a matter of powering off the sw5, turning the sub 9 on and re-running the sync mode on the HT-A9.
I had to adjust the sub location in the settings (set the sub location closer than actual – which seems to lower the gain) as it was overpowering the sound with original settings.
Now the bass is awesome. Strong, punchy, and no boominess. 800 sq ft open floor plan area. It definitely hits harder on movies (like edge of tomorrow, ready player one, etc) but I really like how it improved regular shows in regards to vocal content.
Challenge with subwoofers is room dimensions and placement, might sound great to me, but your room may have serious bass nulls at your sitting location. So always do a sub crawl if you can. (Used to run two dual svs subs in a dedicated HT room, but the LP was right in a bass null – it sucked).
I recently upgraded/replaced my SA-SW5 subwoofer connected to a Bravia Theater Quad with this new SA-SW9. This new sub has been a substantial improvement in low-end extension and more seamlessly integrates with the Bravia Quad’s sound profile. The hand off in frequency range is more natural with bass that fills my living room more adequately without the boominess I experienced with the SW5 that, at times, overwhelmed the rest of the audio mix. The SW9 is more effortless, provides more texture and air to the audio mix, and does not distort or rattle at higher volumes across the music and Dolby Atmos tests I have performed across my content library. A great movie to test is Bladerunner 2049. The opening crawl of the film has a Hans-Zimmer mix that is, at times, staggering in its scope and the SW9 handles this stress test with aplomb.
While a bit pricy, it’s well worth the upgrade for owners of the SW5 or SW3. And for those who don’t have a subwoofer for their theater quad or compatible Sony system, I highly recommend this unit as an essential purchase.
Last note, setup was simple via the Bravia connect app. Just follow the instructions in the box and press the connect button on the subwoofer when prompted via the app. It connected quickly and I was able to hear the difference almost immediately.
Rumble rumble
I have the Sony bar with rears and the sub 9 that I’ve thoroughly enjoyed but wanted to add just a bit more bass. Adding this one as a 2nd has been a great additio
If you are already thousands into your Bravia setup, and only want more bass, 2x of these will fix the need. If you are thinking of going all in on a bravia system, for 2800$ ive spent on my Bar 8, 1x Sw-5 2x Sw-9 and Rear 5’s I would probably get the dragon system.
This thing moves some serious air. Bass goes down low, i think min freq is 20hz or maybe a lil lower. Much better than Sw-5. Finally enough to upset the neighbors. Easy to connect as is any bravia product. At 600 each, finally made sense. 900 each was wild.
Theatre sounds
After getting used to the 360 spiral, it sound like you in a theatre, crispy clear, all around you, TV and gaming, highly recommend it, the sound bar and sub woffer won’t disappoint.
I really wanted to love this “theatre trio” setup with the Rear 9s and Subwoofer 9, but it is a massive disappointment. For a premium audio system, the performance is completely broken and misses the mark.
* Frustrating Volume Inconsistency: The sound level is all over the place. It’s extremely low on some content and painfully loud on others. Most of the time, I have to crank the volume way up just to hear things clearly, but the second I switch to certain apps, the volume explodes and is way too loud. You shouldn’t have to babysit the remote constantly.
* The Soundbar & Center Channel: While the front left and right separation is just passable, the center channel is terrible. It completely lacks clarity, making dialogue sound muddy, which forces you to raise the volume even more just to understand what people are saying.
* The Rear 9s: These are almost nonexistent. There is absolutely nothing that “wows” me or offers a true surround sound experience. They add almost zero immersion.
* The Subwoofer 9: This is easily the only good part of the entire package. The Sub 9 has a ton of power and deep bass, but a great subwoofer cannot make up for how awful and frustrating the rest of the system sounds.
Final Verdict: If you are considering this vs. the Bravia Theatre Quad, save your money. Compared to the Quad, this setup sounds downright horrible. Between the muddy dialogue, nonexistent rears, and constant volume adjusting, it is not a good audio system. 1 out of 5 stars.