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Sony SRS-X99 review – high-resolution multiroom speaker

Sony SRS-X99 lead
Our Rating :
Price when reviewed : £399
inc VAT

The Sony SRS-X99 packs in plenty of connections and great sound quality with a stunning design


Speakers: 7, RMS power output: 154W, Dock connector: None, Networking: Bluetooth (SBC, AAC, LDAC), 802.11n, Dimensions: 433x125x133mm, Weight: 4.7kg, Streaming formats: UPnP, DLNA, AirPlay, Google Cast

Super Fi

Back in 2014, I was very impressed by Sony’s SRS-X9 speaker. It delivered stunning sound that matched its elegant and stylish design. The newest version, the SRS-X99, builds on this model by adding some new features to bring it bang up to date for 2016, including support for Google Cast, Spotify Connect and multiroom functionality.

It slots into Sony’s multiroom speaker range at the higher end of the spectrum just above the SRS-X77. It’s significantly bigger than the X77, too, measuring 430x133x125mm and weighing a reassuring 4.7kg. Unlike the SRS-X77, which is eminently more portable and includes a built-in battery, the SRS-X99 isn’t likely to be moved around quite as much.

The heavy use of glossy, piano black glass makes a welcome return for the SRS-X99, and it gives the speaker a gorgeous, luxurious appearance. Its clean edges and uninterrupted front grille look very classy, and it feels premium to the touch. That said, you’ll probably want to refrain from touching the SRS-X99 too often, as its surface is an absolute magnet for messy smudges and greasy fingerprints – so much so that there’s a microfibre cleaning cloth included in the box to help the speaker look its best.

Sony SRS-X99 top touch controls

Luckily, the SRS-X99’s touch controls are located on the top corner of the speaker, making any potential marks less obvious under bright light. They’re backlit, too, so they’re easy to find in the dark, and a proximity sensor will turn them on only as you reach out to touch them. It’s a subtle effect that’s both functional and charming.

Using the controls, you’re able to swap between the speaker’s different connection modes including Network, Audio In and Bluetooth, the latter of which can easily be enabled via its NFC contact point. You also get a simple, minimalist remote control, which has media playback controls as well as different input buttons.


On the back of the cabinet you’ll find both USB-A and USB-B ports. The former can be used to charge your portable devices, such as your phone or tablet, as well as connect external storage devices with local music files, while the latter can be used to connect the SRS-X99 to a computer for direct playback. Alternatively, you also have a 3.5mm auxiliary connection.

The SRS-X99 supports a wide array of formats, including FLAC, AAC, ALAC and DSD along with MP3s. This being Sony, it comes as no surprise that there’s high-resolution audio support as well, so playback of 192kHz/24-bit files isn’t a problem. This will be particularly attractive to any audiophiles with high-resolution masters. 

Sony SRS-X99 back

If all that wasn’t enough, the SRS-X99 has built-in dual-band Wi-Fi and an Ethernet port for a wired network connection, so you’re certainly not left wanting when it comes ways of accessing your music. A pop-out antenna can be used to improve wireless reception, but once you’ve connected the SRS-X99 to your network, which can be done through Sony’s SongPal app, you open up Spotify Connect, AirPlay, Google Cast and DLNA as wireless connection options alongside Bluetooth. 

Sony’s SongPal app can be used for managing multiple speakers, changing EQ settings and accessing music stored on your home network or device. Grouping speakers together is easy and intuitive, too, thanks to its simple interface. You just need to tap and drag speakers connected to your network together in order to group them.

Sony SRS-X77 SongPal app grouping

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RMS power output154W
Audio inputs3.5mm stereo
Audio outputsNone
Dock connectorNone
Memory card supportNone
NetworkingBluetooth (SBC, AAC, LDAC), 802.11n
App supportiOS, Android, Windows, OS X
Battery capacityNone
Streaming formatsUPnP, DLNA, AirPlay, Google Cast
Supported serversUPnP, SMB, DLNA
Audio formatsMP3, WMA, AAC, Apple Lossless
Internet streaming servicesSpotify, Google Play Music, Internet Radio
Buying information
Price including VAT£399
WarrantyOne year RTB
Part codeSRS-X99B

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