X
CNET logo Why You Can Trust CNET

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Reviews ethics statement

Sonos Connect:Amp review: Sonos Connect:Amp

The Sonos Connect:Amp is an excellent streaming-audio product for sound-quality sticklers who prefer to supply their own speakers.

Ty Pendlebury Editor
Ty Pendlebury is a journalism graduate of RMIT Melbourne, and has worked at CNET since 2006. He lives in New York City where he writes about streaming and home audio.
Expertise Ty has worked for radio, print, and online publications, and has been writing about home entertainment since 2004. He majored in Cinema Studies when studying at RMIT. He is an avid record collector and streaming music enthusiast. Credentials
  • Ty was nominated for Best New Journalist at the Australian IT Journalism awards, but he has only ever won one thing. As a youth, he was awarded a free session for the photography studio at a local supermarket.
Ty Pendlebury
8 min read

At the start of 2012, rumors started spreading that Google was readying a home theater device to rival the likes of the Apple TV and the Sonos system. But when that mythical creature turned out to be the Nexus Q, it was hard to swallow our collective disappointment.

8.4

Sonos Connect:Amp

The Good

The <b>Sonos Connect:Amp</b> is an excellent all-in-one digital music system that offers superb sound quality. It gives you access to nearly any cloud music service (Pandora, Spotify, Amazon, Rhapsody, and so forth) using any iOS device or Android smartphone as a remote. The Connect:Amp has a line-in, which is particularly useful for connecting a TV or DVD player.

The Bad

You'll need to have separate speakers and a tablet or smartphone. The Sonos Connect:Amp doesn't support iTunes Match. While it can wirelessly interact with other Sonos products, you'll need a hard-wired connection or the $49 wireless Sonos Bridge accessory if it's your only Sonos component.

The Bottom Line

The Sonos Connect:Amp is an excellent streaming-audio solution for sound-quality sticklers who prefer to supply their own speakers.

While the Nexus Q will remain a curio until Google can boost its feature set, the competitive Sonos Connect:Amp feels like a real hi-fi system. From its solid build to the simplicity of the user interface it's something that the Nexus isn't: refined. It's compatible with nearly every online music service on the market, and can also stream your personal digital-music collection.

But if you thought the $300 Nexus was expensive -- and for what it does, it is -- then you might want to hold on to something: the Connect:Amp is two-thirds more expensive. (Thankfully, Sonos also offers three other models -- the Play:3, the Play:5, and the ampless Sonos Connect -- at $299, $399, and $349, respectively.) Yet, regardless of the price, the Sonos Connect:Amp is a full-featured digital audio system with a lot to offer both casual users and serious audio enthusiasts -- especially if they're looking to eventually build out a multiroom audio system.

The baby Connect (left) and the Connect:Amp both feature volume controls on the front. Sarah Tew/CNET

Design
Measuring 3.5 inches high, 7.28 inches wide, and 8.15 inches deep, the Sonos Connect:Amp is larger than your average "small black box" media streamer such as the Roku or Apple TV.

The Sonos features a two-tone color scheme with an "anodized precision-machined extrusion aluminum case" nestled on a white plastic base. The 5.1-pound box has some heft to it, and -- unlike a lot of the flimsy plastic boxes you buy today -- the Connect:Amp feels really solid and well designed.

The front panel is about as minimalist as it gets: Volume Up/Down and Mute; everything else (including redundant volume controls) is controlled through an amp on your tablet or smartphone. There's no power button, since the Sonos is designed to remain in standby mode at all times.

Close-up on the Sonos Connect:Amp (pictures)

See all photos

Features
The Connect:Amp was formerly known as the ZonePlayer ZP120, and was renamed when the Play:3 came along. While the ZP120 was initially offered as part of the BU250 Bundle, that package is no longer available, not least because the CR200 touch-screen controller has been put to pasture. The company instead offers free control apps for PC, Mac, Android, and iOS devices. In other words, nearly any smartphone or tablet -- including iPhones, iPads, iPod Touches, Kindle Fires, and all newer Android phones -- can double as the remote.

The PC app hasn't changed much in the past few years, but the number of services has grown dramatically. Sarah Tew/CNET

The Connect:Amp is a rare product in that it is part music streamer and part amplifier. When I say rare, I mean there are a couple of products like it, but most are hideously expensive music servers, or...ahem...the aforementioned Google Nexus Q. Whereas the Nexus Q has a 25W amplifier, the Connect:Amp features a much beefier 55W -per-channel output.

Obviously, the built-in amp means that it's up to you to supply your own (unpowered) speakers. You could go for something like Dayton Audio B652s, or step up from there.

If you have an existing stereo or home theater system and you're looking to add streaming to it, might I suggest the ampless Sonos Connect ($349). Alternatively, you can go the all-in-one route with the Play:5 and Play:3, both of which have built-in speakers.

The Sonos Connect:Amp offers a plethora of connections, including line-in. Sarah Tew/CNET

One feature offered by the Connects and that the all-in-one Play:3 and Play:5 systems lack is audio inputs. The Connect:Amp has a single stereo RCA input that can be used to connect an external audio device -- perhaps a turntable or an iPod dock.

For speaker connections, the Sonos includes solid, spring-loaded speaker jacks at the back for connecting banana plugs or bare wires -- though not spades.

Last in the list of connections is the subwoofer-out, which can be used to connect to a third-party subwoofer. Or you can opt to go with the wireless Sonos Sub instead.

One feature I kept wishing for while using the Sonos was an IR port, usually in order to mute the system. Instead, you'll either need to unlock your phone and launch the Sonos app, boot up your PC, or finally -- heaven forbid! -- walk over and press the Mute switch.

Audio-only -- but that's a good thing
Unlike some of the more well-known media streamers on the market, the Sonos devices are audio-only, no video. While that may seem limited in scope, the Sonos is more about focusing on doing one thing as well as possible.

Sonos' tagline is "Stream All The Music On Earth" -- and the company's products come very close to that goal. The Sonos is compatible with nearly every popular music service: Mog, Pandora, Spotify, Sirius XM, Last.fm, Slacker, Rdio, Songza, TuneIn Radio, Rhapsody, iHeartRadio, Wolfgang's Vault, Aupeo, Stitcher, and -- most recently -- Amazon Cloud Player.

For those keeping score, that's nearly every cloud music service out there. And while, as mentioned above, Apple's iTunes Match isn't supported (thanks, as always, to Apple), the Sonos does support streaming from PCs and Macs running the iTunes software, so your home music collection is always accessible. It also supports many NAS servers, for those who don't want to keep their PCs powered on all the time.

For local music, nearly all popular file formats are supported: MP3, WMA, AAC+, Ogg Vorbis, WAV, AIFF, Apple Lossless, and FLAC. That said, while it will only concern a small subset of people at present (myself included), the Sonos system doesn't play back high-resolution 24-bit files: it's CD-quality only.

The Android app is quite compact. Screenshot: Ty Pendlebury/CNET

Totally wireless -- with one caveat
The Sonos family of products is designed as a multiroom audio system, and connect to one another via a proprietary wireless mesh system. The advantage of that is that it's not limited by your home's Wi-Fi network. The drawback is that there needs to be at least one wired connection between your home network and a Sonos unit. (Think of it like a DECT cordless phone system: one base station needs to be plugged into the wall jack, while the others communicate with that one wirelessly.)

That gives you two alternatives: you can situate the first Sonos in your home near an Ethernet connection, or you can buy a $50 Sonos Bridge.

Performance
Like any hi-fi system, the performance is mostly dictated by the speakers you use. When using the Connect:Amp I got the best results from the Intimus 4T Tower Speakers with a sparkling treble underpinned by detailed mids and tight bass. Sure, you could spend more on a dedicated amplifier, DAC, and music streamer, and get better-sounding results, but it would a) cost a lot more and b) lose the cohesion and convenience a one-box system offers.

Whether it was playing music offered by Spotify or from a local NAS, I enjoyed glitch- free playback from the Connect:Amp and there wasn't a hint of lag time. This was especially important when connecting a TV, and I found there weren't any sync issues despite simultaneously streaming around my apartment. The only thing to keep in mind is that any line-in signal is converted to digital, and when I hooked up a Pro-Ject Debut III turntable I found that the sound was more restrained than when connected to an analog amplifier. As such, I would class the line-in as more of a convenience feature than a true "hi-fi" consideration.

As far as other speakers were concerned, I also had good results with the laid-back B&W 685s, though when compared with beefier amplification the bass was a little lean. Listening to "Life" by The Beta Band, I felt the system wasn't as capable in relaying the bass synth outro (2.36), sounding a little more reticent than my Marantz receiver. The amp was able to drive the speakers to party levels quite easily, though.

Not all speakers were as successful, and it was surprising to find one of Sonos' to be less than exemplary. Adding the Sonos Sub, I found it didn't boost the midrange performance in the same way it did with the Play:3. The inability to set a crossover from where your speakers' bass performance tails off also meant you couldn't tailor bass response. A third-party sub from the likes of HSU or REL for the same $699 price or cheaper would give you more flexibility and better performance.

While I found the software quite easy to use, it did have some niggling problems that competitive systems don't have. Firstly, the "sort by folders" option in the software doesn't read folders that haven't been indexed yet, and you need to reindex (but not on the fly) to find recently added files. Secondly, and quite irritatingly, it's very easy to bump the app's volume slider up to ear-splitting volumes. Thirdly, Spotify integration could be better. I was really taken by the Squeezebox Touch's take on the software, which enables users to use it in much the same way as they would use normal Spotify -- starring items and editing playlists, for example. In comparison, the Sonos is limited to reading playlists and starred items. It's also difficult to play a starred album, as the Sonos is set up to play individual tracks generally, and so the continual playlist nature of "starred tracks" means playing an entire album is problematic.

That said, the Sonos apps are updated several times a year, so anything one may object to currently may well be corrected in a future update.

Conclusion
In my reviewing time I used both the Connect:Amp and the Connect, and when switching back to the Connect I found I missed its bigger, amplified brother. Building a system around the Connect:Amp makes a lot of sense if you're starting from scratch, and the total app control makes it much more compelling than the Connect -- where you'd need to separately turn on your stereo and flip to the correct input before enjoying the music.

There are plenty of cheaper alternatives to the Sonos Connect:Amp. You can stream audio from a smartphone or tablet app to any Bluetooth speaker or a Bluetooth dongle like the Belkin Bluetooth Music Receiver; but Bluetooth sound quality will leave critical listeners wanting.

Another alternative is to connect an Apple TV ($99) to any existing stereo system. The Apple TV supports all of the Sonos services plus iTunes Match, and you use an iPhone, iPod Touch, or iPad as a remote. But with the Apple TV, you'd have to flip between a dozen apps (using AirPlay), rather than using the all-in-one Sonos control app. And -- unlike Sonos -- it's not useful for Android or Kindle Fire owners.

At the end of the day, the Sonos Connect:Amp isn't cheap, but it's a better no- compromise digital music system than those alternatives listed above -- especially considering Logitech has discontinued its Squeezebox range and replaced it with the UE Smart Radio. If you're serious about your digital music -- and about cloud-based music services in particular -- the Sonos Connect:Amp is a tidy all-in-one system.

8.4

Sonos Connect:Amp

Score Breakdown

Design 8Features 9Performance 8