Sonos BU150 Review Grange-over-Sands

Despite a steady stream of capable rivals, the Sonos has remained the byword benchmark for wireless multiroom audio since its Multi-Room Music System first appeared in 2005.

But while there have been some software tweaks and hardware additions during that time, this new bundle represents the first major refresh of the range.

The concept remains the same: a multi-room audio system is made up of ZonePlayer hardware units and Controllers, which come in both software and hardware versions.

Each zone nominally represents a room, with up to 32 units forming a network. Up to 32 hardware controllers can be added to that, and any number of software controllers, available in both Windows and Mac OS flavours. The software includes support for libraries of up to 65,000 tracks.

Wheel not reinvented

The hardware changes are relatively small. The ZP120 which replaces the ZP100 manages to shave 35% off its predecessor's size, while upping the Class-D amp to a very respectable 55W per channel.

The smaller ZP90 (replacing the ZP80), lacks the integrated amp, replacing it with analogue RCA and optical digital outputs. Both players also sport analogue inputs for connecting other sources, such as CD players or, with a suitable pre-amp, a turntable, which can then be routed around the system freely.

But the biggest change is unseen, with the introduction of SonosNet 2.0: a simple branding of what's essentially an encrypted draft-n peer-to-peer wireless network.

It claims to double the range of the previous iteration and, while we'd be cautious about guaranteeing that, using both generations in a heavily built period house certainly favours the latter for stability.

Handily, each unit also comes with two Ethernet ports (a reduction from the ZP100's four), enabling them to be used as a wireless bridge or a hardware switch.

Security first

While it's marketed as a wireless system, there's a caveat in that one unit does need to be wired into your router in the name of security.

Once located where they need to go, it's almost embarrassingly easy to set the Sonos system up: take either the CR100 hardware controller or a computer-based controller and handshake the units to the system with a simple two-button press.

Then, just browse to a music share (either on a PC or a CIFS/SMB-compliant NAS) and wait for your music to be indexed. Assuming there are no range issues or an esoterically tuned router, that's it.

Using the system is just as simple, with the slick menu system, and hardware controls that are well thought out.

Party on

Each ZonePlayer has a volume and mute control, and you can easily switch between them to change the source each is using, or gang them together in 'party mode', complete with impeccably executed multi-room synchronisation.

And while some competitors struggle with sound quality, the results with Sonos will be dictated by your source material.

On that front, it will play uncompressed WAV and AIFF files, as well as FLAC, Apple Lossless, and the more usual WMA, MP3, AAC and Audible formats. In addition, there are a number of music services built in, including Napster and Pandora plus internet radio services.

Precision engineering

Of course, rivals such as Logitech's Squeezebox Duet can do much the same job, and you could easily see a company like Apple producing a very compelling alternative. But nothing currently comes close to this system's satisfyingly engineered precision.

One caveat is that the lack of audio outputs on a ZP120 means it can't be integrated into an existing audio setup easily. And despite a saving on buying the Sonos components as a bundle rather than individually, it still can't quite match the Squeezebox Duet on price alone.

But, given its quality, ease of use and expandability, it's not difficult to recommend it, especially if you're starting a multiroom system from scratch.

Author:Ross Burridge

Copyright 2009 Dennis Publishing All Rights Reserved.

Sonos BU150