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Sonos Amp Review
Sonos Amp

Main Features

  • 125 watts RMS into 8-ohms
  • Built-in DAC
  • Wifi 2.4 GHz
  • Weight: 4.60 lbs / 2.09 kg
  • Dimensions (H x W x D):2.5 x 8.5625 x 9.375 inch
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Sonos Amp Review
Sonos Amp Sonos Amp
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The Sonos Amp is an Streaming Integrated Amplifier by Sonos that delivers 125 watts x 2 channels into 8 ohms . Minimum impedance of 4 ohms makes the Sonos Amp compatible with a wide range of loudspeakers. Thanks to its built-in DAC, you can play digital sources directly without the need for an external DAC unit. Sonos Amp has an MSRP of 699$.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Performance Specs

One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements.The Sonos Amp is rated at 125 watts RMS into 8-ohms. Sonos provides this wattage at a THD (Total Harmonic Distortion) of 0.1% which is an important indicator of distortion at the given values (lower THD is better).

Here are the main highlights of its performance specs:

  • 125 watts into 8-ohms (20-20k) at 0.1%
  • 188 watts into 6-ohms
  • 250 watts into 4-ohms
  • 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
  • 116dB Signal to Noise Ratio

When pairing the Sonos Amp with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels. Operating your amp outside of this max range may damage the speakers.


What size of room is the Sonos Amp Amplifier good for?

An essential deciding factor is the size of the room in which you intend to employ the Sonos Amp amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:

Listening Environment Suitability
Near-fieldPoor
Small RoomPoor
Mid-size RoomGood
Large RoomGood
Very Large RoomAverage

Inputs and Outputs

Besides the performance specs of the Sonos Amp, the next important feature set that you have to evaluate is the input and output selections that it offers. Sonos Amp has total of 1 Analog inputs .

Sonos Amp Back View
Sonos Amp Back View (Click the image for the larger version)

Inputs
  • Total Number of Analog Inputs: 1
  • Optional Optical Digital Input

Sonos Amp connection
Sonos Amp Connections

Outputs
  • Mono-RCA(Sub) Preamp Outputs
  • Subwoofer Output

Bluetooth Connectivity

Sonos Amp doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your Sonos Amp. Two bluetooth receivers that we recommend are the iFi Zen Blue V2 and the Audioengine B1.

Among the amps in the same price range, these are the 4 amps that have Bluetooth Connectivity:

  • Yamaha WXA-50 - MSRP 599$ - Compare w/ Sonos Amp
  • NAD C 328 - MSRP 699$ - Compare w/ Sonos Amp
  • SVS Prime SoundBase - MSRP 699$ - Compare w/ Sonos Amp
  • Bluesound POWERNODE Edge - MSRP 649$ - Compare w/ Sonos Amp

Phono Input

Sonos Amp doesn't have a phono input so in order to play your vinyl albums, Sonos Amp has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.

Subwoofer Output

Sonos Amp has a dedicated subwoofer output which can be used to connect it directly to a powered subwoofer via an LFE(Low Frequency Effects) cable.
Check our Powered Subwoofers page to find a subwoofer that will work with Sonos Amp amp and your speakers.

DAC and Digital Music

The Sonos Amp's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
Sonos S2 Wireless Control App
Sonos S2 Wireless Control App

Sonos Amp External Dimensions and Weight

Sonos Amp has external dimensions of (H x W x D) 2.5inch x 8.5625inch x 9.375inch (63.5mm x 217.5mm x 238.1mm ). The unit weighs 2.09kg / 4.6lbs.

Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited. The base area of the Sonos Amp is approximately 518.0cm2 / 80.3inch2.

  • Width: 217.5mm (8.5625")
  • Height: 63.5mm (2.5")
  • Depth: 238.1mm (9.375")
  • Weight: 2.09 kg (4.60lbs)
  • Base Surface Area: ~518.0cm2 / 80.3inch2
  • Volume: ~3.3 liter / 0.9 gallon
Sonos Amp  - Top View
Sonos Amp - Top View

Available colors

Sonos Amp is available in Black color options.

What's in the Box of Sonos Amp?

Here are the items that are included inside the box of Sonos Amp:
  • Network audio integrated amplifier
  • 6.5-feet AC power cord
  • 2 Speaker terminals
  • Quickstart Guide
  • Important Product Information
  • User's Manual

    For more information about how to setup, use and maintain the Sonos Amp, use the direct link below to download the official manual document:
    Download User Manual for Sonos Amp

    Official Product Page

    Official manufacturer's product page for the Sonos Amp Integrated Amplifier can be found below:
    Official Product Page for Sonos Amp

    Warranty

    1 Year of parts warranty and 1 Year of labor warranty is generally provided for the Sonos Amp by the manufacturer.

    Sonos Amp  Lifestyle
    Sonos Amp Lifestyle

    Sonos Amp Detailed Specifications

    General
    Brand Sonos
    Full Model Name Sonos Amp
    Amplifier Type Integrated Amplifier
    Amp Class Class D
    Performance
    Watts RMS per Channel into 8-ohms 125 watts
    Watts RMS per Channel into 6-ohms 188 watts
    Watts RMS per Channel into 4-ohms 250 watts
    Frequency Bandwidth 20-20k
    THD 0.1%
    Minimum Impedance 4
    Signal to Noise Ratio 116 dB
    Digital Music
    Built-in DAC Yes
    Bluetooth No
    WiFi Yes
    Ecosystem
    Apple AirPlay Yes
    Apple AirPlay2 Yes
    DTS Play-Fi No
    Chromecast built-in No
    Roon No
    HEOS No
    BluOS No

    CONNECTIONS
    Total Analog Inputs 1
    Phono Input No
    Optical Digital Inputs Optional
    Coaxial Digital Inputs No
    USB Input No
    Preamp Outputs Mono-RCA(Sub)
    Pre-out / Main-in Loop No
    Headphone Output No
    Subwoofer Output Yes
    Removable Power Cord
    PHYSICAL SPECS
    Height 63.5mm (2.5")
    Width 217.5mm (8.5625")
    Depth 238.1mm (9.375")
    Weight 2.09 kg (4.60lbs)
    Available Colors Black
    OTHER
    Parts Warranty 1 Year
    Labor Warranty 1 Year
    Sonos Amp Alternatives in Streaming Amplifiers
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