One S

Pint-sized WiFi speaker

  • Mini Wi-Fi speaker with impressive room-filling sound
  • Multi-room enabled system with support for a wide range of audio files, including lossless
  • Driven by 50 watt bi-amping technology for dynamic bass performance
  • Preset buttons on the device for programing your favorite streams
  • Simple wireless setup & intuitive controls via free app

Reduced to the max

Sound & Technology

The One S is a little speaker with big ambitions. It would be difficult to pack more sophisticated audio technology into such a small space. A sophisticated 2-way coax driver system consisting of a 100 mm midbass driver and forward-placed 20 mm tweeter create a highly accurate soundstage across all frequencies. Two side-mounted passive bass radiators generate a surprisingly powerful and punchy 45 Hertz low end. An integrated 50 watt amplifier fires the One S to high, distortion-free levels in even larger rooms. Integrated streaming technology supports even lossless digital audio files for CD-quality sound. Digital signal processors eliminate any unwanted...
One S
  • Award-winning sound and design
  • Easy setup and installation
  • Lossless file support for CD-quality sound
  • For single device or multi-room streaming
  • German-engineered audio technology
Do you need help?
For an individual consultation.


Test Reviews

  • about tech 30.09.2016
    "Overall, the Raumfeld One S WiFi speaker dazzles with the way it manages to deliver exceptional sound from a pint-sized package. Its design may be classy and simple, but there’s little denying the amount of power contained...
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  • Sound&Vision 06.03.2016
    "...the One S’s presentation was dynamic, with ample bass."
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  • TechHive 05.12.2016
    "...the One S fits right between a Sonos Play:1 ($199 at Amazon) and the Sonos Play:3 ($299 at Amazon), but it sounds better than both of them. [...] Actually, the speaker’s performance wowed me across the frequency...
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  • Sound & Vision 12.1.2015
    "Raumfeld’s One S is quite possibly the mightiest mini speaker you’ll ever come across. Somehow, the Raumfeld folks pack a forward-facing coaxial tweeter (1 inch)/woofer (3.9 inches) array, a pair of 3-inch side-firing...
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  • The Verge 20.11.15
    “The speakers sound great, look good […]” "Raumfeld's wireless speakers have good sound and sharp looks[...]”
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  • 06.10.15
    "But Raumfeld hasn't limited itself to the home theater ecosystem. The German company was founded on the goal of providing a truly multi-room digital sound experience, with speakers constructed specifically for certain rooms. The...
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  • CNET 11.19.15
    "The Raumfeld One S is a great-sounding Wi-Fi speaker with bass response that could shame much larger speakers, and support for 24-bit/192 kHz files. The speaker is compact, and its water-resistance makes it a great choice for...
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  • Trusted Reviews 04.30.15
    Raumfeld One S – Sound Quality "The Raumfeld One S is an impressive-sounding speaker, especially when you consider its diminutive size. In some ways it’s even better than the current leader of the pack, the Sonos...
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  • 07.16.15
    Workmanship "Visually, the loudspeaker makes a very good impression: The matte lacquered synthetic enclosure is well made and the design comes across as pleasantly minimalistic." Controls "The One S can be...
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  • Recombu 03.24.15
    We review the Raumfeld One S, a seriously slick and durable multi-purpose music machine for your bathroom or kitchen. "Raumfeld is hoping to fill your entire house with its comprehensive range of multi-room music streaming...
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  • GadgetSpeak 21.12.15
    “Sound quality from this small unit is amazing and at such a good volume level that when my phone was at maximum volume I had to listen in the next room and there was no hint of distortion.”
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  • 12.08.2014
    "As one has come to expect from Raumfeld, the One S is a technologically exceptional device. The moment you touch it, it becomes clear that you're dealing with a quality product and not another plastic box masquerading as a...
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  • audisseus 11.15
    "If a single Raumfeld One S already sounded larger than it actually looks, two of them revealed an entirely unanticipated, positively mature-seeming level. [...] In short, the Raumfeld One S is a substantial-sounding everyday...
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  • Smart Home Welt 11.16.15
    "A Red Dot award-winning design makes the Wi-Fi speaker from Raumfeld the perfect living room accessory. With a clear geometric form, a sophisticated mix of materials consisting of aluminium, silicone details and exclusive matte...
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  • Niorola 08.13.15
    “Before we proceed: I didn’t even need to touch an Ethernet cable. The WiFi setup via the free Raumfeld App worked perfectly.” First impressions "The white loudspeaker looks really good. The matte synthetic...
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  • The Verge 08.05.15
    “When you think of wireless, multi-room audio systems, there's really only one name that comes to mind. Sonos has dominated this market in the US for years, even as other wireless technologies such as AirPlay, DLNA, Play-Fi, and...
    Read more

Certified efficiency for environmentally-friendly
low energy consumption.
Music sources
Private music collections stored in the following formats/locations:
  • Tracks saved on Android or iOS devices
  • USB storage devices, NAS drives, UPnP/DLNA music servers
  • Music folders on computers such as iTunes (access permission required)
Online music services:
  • Subscription streaming services: Spotify, TIDAL -- for single room and multiroom
  • Free streaming service: SoundCloud -- for single room and multiroom
  • Free internet radio streaming service: TuneIn -- for single room and multiroom
Chromecast built-in technology makes it possible to directly stream over 100 music services.

Enjoy audio from Deezer, Google Play Music, iHeartRadio, SomaFM Radio, Digitally Imported, Qobuz Music and 100+ more.

System requirements
  • Free Raumfeld App for iOS (8) or Android device (from 4.0.3)
  • WiFi router with one free Ethernet port and valid internet connection
  • Broadband internet connection
  • If applicable: Additional WiFi access points for rooms with weaker signals
Included components
  • 1 x Raumfeld One S
  • 1 x Powercord
  • 1 x Ethernet cable 78.7 in / 2.0 m

Technical Data

Raumfeld One S
Small WiFi speaker for access to millions of songs at the touch of a button. Preset buttons immediately start your favourite streams from music providers, internet radio or playlists making the One S an incredibly easy-to-use streaming solution. High-end audio components and expert tuning allow the One S play to back your selections in true-to-source sound quality at incredibly high levels. 
Speaker Maximum sound pressure level 101 dB/1m
Frequency range from/to dynamisch 60 - 20000 Hz
Tweeter (number per enclosure) 1
Tweeter (diameter) 0.98 in / 25.0 mm
Tweeter (material) Aluminium
Bass/Midrange driver (number per enclosure) 1
Bass/Midrange driver (diameter) 3.54 in / 90.0 mm
Bass/Midrange driver (material) Polypropylene, coated
Woofer (number per enclosure) 2
Woofer (diameter) 3.7 in / 95.0 mm
Woofer (material) Aluminium
Acoustic principle 3-way
Enclosure type Sealed, passive membrane
Enclosure material Thick-walled synthetic
Enclosure surface Varnish, matte/fabric
Diameter of the stand screw threads 0.1 in / 3.0 mm
Wall mounting brackets Yes
Keyhole plate mounted Yes
Connections USB 2.0 1
Playback ASF Yes
MP3 Yes
Apple Lossless Yes
Miscellaneous Supports gapless playback
Electronics Maximum number of items 150000
Infrastructure mode Yes
WLAN Standards 802.11b/g/n
WLAN encryption WPA, WPA2
10/100-Mbit/s Ethernet Yes
Amplifier technology Class D
Amplifier configuration 2.0
Amplifier channels 2
Power output capacity impulse (peak) Satellite 15 W
Power output capacity impulse (peak) Bass 35 W
Power output capacity sinus (RMS) Satellite 10 W
Power output capacity sinus (RMS) Bass 30 W
Power supply voltage 230 volts
Standby-Function Yes
Standby-Power consumption 0.60 watt
Maximum power consumption 100 watt
Mains cable - IEC connector (non-heating device) Yes
Safety class 2
Fuse Yes
Storage for settings when disconnected Yes
Dimensions Depth 4.3 in / 11.0 cm
Width 7.1 in / 18.0 cm
Height 5.1 in / 13.0 cm
Weight 3.1 lb / 1.4 kg
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