Teufel Stereo M
- 8 week right of return
- Free & easy returns
- Directly from manufacturer
Highlights

- A bookshelf speaker pair with integrated amplification for Wi-Fi and Bluetooth streaming, powerful enough to fill even larger rooms with sound
- Employs a 3-way stereo system with a high-end coaxial driver and wok woofer for an exceptional fine-resolution sound
- With Raumfeld technology for Wi-Fi streaming from services like Spotify, internet radio and music stored on a local network, easily controlled via the Teufel Raumfeld app
- With Bluetooth for direct audio streaming from Apple Music, Amazon Music, Spotify and many other services
- On-device controls for Play/Pause, Skip and volume control plus preset buttons for instant access to radio stations and playlists
- Sleep timer, energy-saving function and additional line-in for connecting to CD- or record-players
- Made from high-quality materials includng fine lacquer and brushed aluminium trim
- Available in black or white

Overview of our technologies



- Raumfeld
You can listen to music in true CD quality without interruption from calls or messages via the Teufel Raumfeld app. You can stream music from your CD- or record player and listen to it throughout the whole house with another speaker. You can even play music from a smartphone, USB stick or hard drive via the app.
Try the Teufel Raumfeld app - Bluetooth
Use Bluetooth to stream any audio, such as YouTube videos, Apple Music or Amazon Music, from your smartphone, tablet, computer or TV directly to your speakers. Our speakers ensure a particularly stable Bluetooth transmission with a long range of up to 15m.
- Spotify
You can stream Spotify via Wi-Fi or Bluetooth, and also use Spotify Connect independently to benefit from the features of the Spotify app. You can quickly change the audio output from your smartphone to the speakers without pausing.
No more hassle. The Teufel Stereo M gives you more than enough options to leave your phone in your pocket and keep your focus on what matters, the music.

After 2.5 years of research, Teufel has developed an extraordinary driver in the form of the coaxial flat diaphragm chassis. Thanks to SCA (Synchronised Coaxial Acoustics) technology, this works almost like a pointed sound source, which guarantees very little difference in transmission time between mid-range driver and tweeter.
The tweeter and mid-range drivers are fused into one component. Almost all transmitted frequencies reach the listener's ear at the same time, resulting in a particularly natural sound reproduction.
As a result, different sounds (e. g. voices) are perceived, as in reality, as spatial sources and can therefore be precisely located. Overall, the 3D reproduction appears more realistic than it would with a separate tweeter.
The SCA coaxial chassis is also used in the Definition 3 and has already won several awards.
This is arranged around the tweeter and offers a high level of impulse fidelity, and therefore precise sound reproduction, with its light and stiff diaphragm.
Extra-large tweeter for silky high-tones and low distortion, even at high volumes. Wide beam angle for best sound quality even when not sitting directly in front of the speaker.
Highly resilient, for high distortion-free levels.
Made from carbon woks, so is also very light and low distortion for a high impulse response and deep, precise bass.

USB
Connect a USB stick or hard drive to your Teufel Streaming speaker and play your own music library using the Teufel Raumfeld app. Supported audio formats: MP3, WAV, Flac, Ogg Vorbis, ASF, WMA, M4A with AAC or Apple Lossless. Up to 24 bit/96 kHz. Find more information in the streaming manual.
Teufel Streaming systems and speaker with bluetooth can be optionally expanded with a device from the Amazon Echo series to allow you to select and enjoy music even more conveniently via Alexa voice control. You can find out more about how this extension works and what you can do with it on the Teufel blog.
Learn more
Lost your remote control somewhere in the sofa again? No worries! Control your sound system with voice commands when you connect a Google Home device via Bluetooth.



Included components
- power cord for Teufel Stereo M
- 5,0 m special-connectioncable for Stereo M / L
- Teufel Stereo M - Active Speaker (pc.)
- Teufel Stereo M - Passive Speaker (pc.)
Technical Data

Speaker | |
---|---|
Tweeter (number per enclosure) | 1 |
Tweeter (diameter) | 25.00 mm |
Tweeter (material) | Fabric |
Midrange driver (number per enclosure) | 1 |
Midrange driver (diameter) | 130.00 mm |
Midrange driver (material) | Aluminium hexacone sandwich membrane |
Woofer (number per enclosure) | 1 |
Woofer (diameter) | 150.00 mm |
Woofer (material) | Carbon |
Miscellaneous | Tweeter and mid-range driver in coaxial design |
Acoustic principle | 3-way system |
Enclosure type | Bass reflex |
Enclosure material | MDF |
Enclosure surface | Matte lacquer |
Equalisation openings | 1 |
Equalisation openings (pos.) | Rear |
Removable front cover | Yes |
Miscellaneous | Optional stands are available |
Connections | |
XLR output | 1 |
Miscellaneous | Special connection cable (XLR) between active and passive loudspeaker included in delivery |
Cinch input stereo | 1 |
USB 2.0 | Yes |
LAN | Yes |
W-LAN | Yes |
Bluetooth | 4.2 |
Playback | |
ASF | Yes |
MP3 | Yes |
WMA | Yes |
WAV | Yes |
AAC | Yes |
FLAC | Yes |
OGG | Yes |
Apple Lossless | Yes |
Electronics | |
Maximum number of items | 200.000 |
Total power output capacity (RMS) | 160 Watt |
WLAN Standards | 802.11b/g/n/ac |
WLAN encryption | WPA2 |
10/100-Mbit/s Ethernet | Yes |
Amplifier technology | Class-D |
Amplifier configuration | 6.0 |
Amplifier channels | 6 |
Power output capacity impulse (peak) Satellite | 190 W |
Multi-room | Yes |
Power supply voltage | 230 volts |
Standby-Function | Yes |
Standby-Power consumption | 2 watt |
Maximum power consumption | 200 watt |
Mains cable - IEC connector (non-heating device) | Yes |
Safety class | 2 |
Fuse | Yes |
Storage for settings when disconnected | Yes |
Dimensions | |
Depth | 27.00 cm |
Width | 21.00 cm |
Height | 43.00 cm |
Weight | 10.50 kg |

Speaker | |
---|---|
Maximum sound pressure level | 109 dB/1m |
Frequency range from/to | 40-22000 Hz |
Tweeter (number per enclosure) | 1 |
Tweeter (diameter) | 25.00 mm |
Tweeter (material) | Fabric |
Midrange driver (number per enclosure) | 1 |
Midrange driver (diameter) | 130.00 mm |
Midrange driver (material) | Aluminium hexacone sandwich membrane |
Woofer (number per enclosure) | 1 |
Woofer (diameter) | 150.00 mm |
Woofer (material) | Carbon |
Miscellaneous | Tweeter and mid-range driver in coaxial design |
Acoustic principle | 3-way system |
Enclosure type | Bass reflex |
Enclosure material | MDF |
Enclosure surface | Matte lacquer |
Equalisation openings | 1 |
Equalisation openings (pos.) | Rear |
Removable front cover | Yes |
Magnetic shielding | Yes |
Miscellaneous | Optional stands are available |
Connections | |
XLR input | 1 |
Miscellaneous | Special connection cable (XLR) included in delivery |
Dimensions | |
Depth | 27.00 cm |
Width | 21.00 cm |
Height | 43.00 cm |
Weight | 10.50 kg |
Accessories
Expert reviews


"What sets the Teufel Stereo M apart is its tonal size and ease with which it presents the most diverse musical genres. Size means here: a good foundation, which almost brings to mind a pair of floor-standing loudspeakers when your eyes are closed. Basses sound powerful and crisp. Short impulses get to the point and provide a dynamic sound experience.”
"The midrange sounds balanced and allows voices and acoustic instruments to sound natural. Here there is neither exaggeration nor a middle hole - the evolution to the predecessor can be clearly seen.”
"In the heights, the Teufel Stereo M plays with brilliance and fine detail resolution."
"[…] With the Stereo M, Teufel has succeeded in creating a model among the multi-room-capable speakers."
"Bluetooth, Wi-Fi and multi-room in shelf speaker format: Teufel's Stereo M packs modern connection paths into a speaker with great sound quality. Not only technology and streaming fans will be happy here, but also audiophile listeners who want to invest in a modern loudspeaker system without taking up much space.”
(Translated from German)
See full review at modernhifi.de


"[…] Central signals sit neutrally between the speakers, the panorama display is not pushed to the sides or even too small and moved towards the center. The little “devil” provide a very wide auditory field in which there are no drops in treble or phase cancellations. Very good!"
"The Teufel Stereo M is a practical all-in-one system: visually unobtrusive, quick to set up and easy to operate. It is particularly suitable for users of streaming services, but are also a fine playback system via the analogue input and via USB and Bluetooth.”
"Thanks to the coaxial principle, they offer astonishingly good locatability and beautiful stage depth - even at close hearing distance. In addition, there is a very homogeneous sound field in which the listener can stay. If you love a cozy, round bass foundation and want to listen for a whole day without getting tired [...], you should consider whether you should sign a contract with Teufel."
(Translated from German)
See full review at fairaudio.de




"Teufel's Stereo M speakers offer a powerful multi-room solution that combines first-class sound quality with simple operation and flexible application variety. The smart streaming boxes have earned the “Buy Recommendation” award."
(Translated from German)
See full review at av-magazin.de


"[…] The level of neutrality that the Berliners have achieved with the Teufel Stereo M reestablishes the direct B2C company, which in the meantime has long been focused on surround sound, right in the heart of the Hi-Fi world. The performance of the Teufel Stereo M can really be described as audiophile. The price is not a special offer to take along in passing, but if you take a closer look at this self-sufficient pair of speakers, you will find that there is not much better for this price at the moment. Thanks to Bluetooth, the wireless speakers are not only suitable for a streaming convenience. This allows the smartphone to play services such as Apple Music or Amazon Music that are not directly supported by the Teufel Stereo M.”
(Translated from German)
See full review at lowbeats.de


"The internal switch from passive to fully active technology is invisible to the user, but no less demanding and costly in technological terms."
"What the little one mobilised in terms of low bass power and size, every floor-standing speaker was worthy and simply impressive. [...] If the previous model was still a bit direct and didn't care about room depth or audiophile ideas of transparency, the newcomer can be certified not only as a change of direction in terms of sound character, but of an explicitly high-end sound quality. The Stereo M makes multi-room streaming audiophile."
"Multi-room active speakers with excellent handling and very well-grounded, well-balanced, spacious sound. Dissolves sound in superfine quality and meets even the most sophisticated sound requirements."
(Translated from German)
See full review at connect.de


"In contrast to the Magnat Duett, the Teufel speaker pair can receive music not only via Bluetooth, but also via Wi-Fi. Because the home network can transmit significantly higher data rates and thus better sound quality, high-resolution music can also be sent to Stereo M via Wi-Fi. If desired, more than one pair of speakers can also be used via Wi-Fi, [...] without cable clutter."
"As to be expected, the higher material costs for the more expensive Teufel speakers pay off audibly: basses are pushed lower and even at higher volumes sound clean and powerful. […] the Teufel speakers are also superior to the Magnat in the midrange and high frequency range: voices [...] are less strained, fuller and altogether more natural, high tones are a little silkier [...]. Even in Bluetooth mode, the Stereo M pair sounds clearly better than the Magnat Duett."
"If you want uncompromisingly good sound, you should get the Teufel Stereo M."
NB: Quote refers to a comparison test between Teufel Stereo M and Magnat Multi Monitor 220. The Teufel Stereo M took 1st place with a score of 2.0 (good)
(Translated from German)
See full review at computerbild.de


"In addition, the speakers can play Spotify Connect, and in the Spotify app, the Teufel speakers can be selected as playback devices. If desired, more than one pair of speakers can be used via Wi-Fi, so that additional speakers in the kitchen or bedroom, for example, can play music around the whole house - without a tangle of cables.”
"[…] If you want to play music from other providers not integrated in the Teufel app, such as Apple Music or Amazon Prime Music, you can switch to Bluetooth.”
"Strengths: Good, balanced sound with extremely rich, clean bass, good connections and connection options.”
(Translated from German)
See full review at welt.de
Downloads & support
A Loss of WLAN Signal
The constant loss of a device's Wlan signal even at high signal strength is due to interferences with other wireless networks. By changing the Wlan channel, you eliminate this interference and can fix this issue. Should your system contain a Raumfeld Base simply try out different channels as described in the online manual (Modifying of the Channel Setting (Raumfeld Base)) and see if the signal strength becomes steady. Access points from other manufacturers usually offer an according configuration option in their administration interface.
Alternatively you may contact our service team, which is happy to assist you with the detection of the best channel available.
B Constant Low Signal Strength
If the signal strength of individual wireless devices is constantly beneath 50%, steps should be taken to upgrade the Wlan reception of the device and therewith the music playback reliability. In most cases it is sufficient to reduce the distance or the number of obstacles between your Raumfeld Base and your playback device. Simply check out if the reception increases when positioning the devices at different places.
In general, the less walls and ceilings between the devices, the better the reception is. Thick walls made from concrete or clay brick will especially abate the signal. Often a relocation of a few centimeters is enough to bypass any problems.
Mind the following advice that accounts for both, systems with Raumfeld Base or systems that are run with an access point from another manufacturer:
- Position the Raumfeld Base or the third party access point you utilise rather high up, on a cupboard for example. Make sure there's some space towards the wall. Do not position the device on the floor or in a corner.
- If you make use of a wireless phone there may be interferences with the wlan signal. Therefore, do not position the Base or the third party access point you utilise right next to the phone's base station.
- Set up the devices in a way that ensures there are a minimum amount of obstacles inbetween your access point and the playback device. Avoid setting up the Raumfeld devices in alcoves or behind prominent corners.
- Make sure there are no large-scale metal bodies between the access point and playback devices (e.g. radiators or fridges)
- Large plants may also block the signal due to their moisture content and should not be between the access point and playback devices.
There are many different methods of accomplishing this, assuming that the same album name, or Album Tag, is assigned to all tracks.
- Assign the name of the compilation's producer to the tag Album Artist. Use "Various Artists" if the producer's name is unknown.
- If you use iTunes, you may select for every song that they are Part of a Compilation under Get Info > Info.
- As long as the album is stored locally on the Raumfeld Base, a network drive or USB storage, it is sufficient to simply save the music files in the same folder. Make sure, however, that only music files pertaining to the compilation are stored within this folder.
Media Players
- iTunes (Windows, Mac OS; only supports MP3, AAC, M4A, Apple Lossless)
- Windows Media Player (Windows; only supports MP3, WMA)
- Winamp (Windows; supports the same formats as Raumfeld except for WMA, WAV)
- MP3-Tag (Windows; supports the same formats as Raumfeld except for WAV)
- MusicBrainz Picard (Windows, Mac OS, Linux; supports the same formats as Raumfeld except for WAV)
- Start up all devices and opening the Teufel Raumfeld App.
- The main menu can now be called up on the app screen by briefly swiping to the right.
- First select "Settings" in the main menu, then menu item "System maintenance" and finally "Updates". By simply tapping on the "Check for updates" button, the device will automatically start to search for and download the latest version.
- After the download is complete, the update can be re-started by pressing the button again. This takes a maximum of about 3-5 minutes. Afterwards, TuneIn can be used again as usual.
In order to do so, go to My Music > Recently Added and tap the button "Update music index" on bottom of the list. Alternatively, visit Settings > Music Resources and activate a scan for new music on the music resource you've copied the music to.
Under Settings > Music Resources there is also an option to make your Raumfeld System check for new music every day. A manual scan is then not necessarily required.
Solution: Add the Teufel Raumfeld app to your standby exception list, also known as your device’s “whitelist.” To do this, go to “Settings” in your Android menu and then “Apps,” “Advanced,” “Battery optimization,” “All apps” and “Raumfeld.”
- Leave the crossover frequency on the default setting if you are satisfied with the sound or if the Teufel Streaming subwoofer is located close to the soundbar (recommended).
- If the subwoofer is placed at the side or at the back of the room, it is possible that the overall sound may no longer be harmonious. In this case, try changing the crossover frequency in the app until you are satisfied with the sound.
- If, for example, the sound image of the soundbar is too thin, reduce the crossover frequency. If the bass sounds too flat, increase the crossover frequency.
- You can also adjust the subwoofer volume separately.
- Connect the analogue or digital output of the Connector to an appropriate input of your home cinema amplifier
- Connect an analogue output of your amplifier to the analogue input of the Connector
- to listen to music from your Teufel Streaming system via your home cinema system
- to stream the audio signal of TV series or movies into other rooms of your house
Please note that when reinstalling the firmware all device settings are lost.
Here you will find advice on reinstalling the firmware of the following devices:
Reinstalling the firmware in our online manual
USB storage devices that are connected to another Raumfeld device than the host can not be integrated as music resources.Please also note that apart from USB sticks, first-generation Speakers, Ones or Connectors support usb hard disks with their own power supply only. This constraint does not apply to second-generation devices, e.g. Connector 2.
Supported Formats
USB storage devices with the following formats are supported:
- FAT16 / FAT32
- NTFS
- HFS / HFS +
- EXT2 / EXT 3 / EXT 4
All systems:
Sharing of the iTunes music and playlists on a network share
Your iTunes music and playlists remain on your computer and Raumfeld accesses the files via the network. Please note that they are only available if the computer is turned on.
Alternative methods for systems with a Raumfeld Base:
Copying of iTunes music and playlists onto the Raumfeld Base
Your iTunes music and playlists correspond to the status in iTunes at the time of copying onto the Raumfeld Base. However, you have the option to copy the data again at a later time in order to thereby update it.
Use of the Raumfeld Base as the iTunes Media folder location
Your music library is centrally stored on the Raumfeld Base and iTunes accesses it via the network. Provided that your computer is connected to the home network you will feel no difference to using your iTunes with a locally-stored media library. This method is therefore particularly suitable for desktop computers. Find out more: https://manual.teufel.de/en/online-manual-music-resources.html
Teufel Streaming is easy to use, thanks to the development by usability experts and constant consultation with users. Whatever function you want to use you will always reach your goal within a few steps.
Teufel Streaming is complete. Teufel Streaming is a complete multi-room audio system. Third party devices (speaker, data storage, computers) are not necessary in order to use Teufel Streaming.
Compatible playlist formats: WPL, M3U, PLS, iTunes playlists
Please note that there may be structural bottlenecks in the Wi-Fi transmission of lossless formats. If your music library consists mainly of very large FLAC, Apple Lossless or WAV files, we recommend connecting your Teufel Streaming host device via network cable or using the optional Raumfeld Expand.
*Currently only WMA files encoded with the regular WMA codec are supported. WMA Lossless, WMA Pro and WMA Voice are not supported.
- Embed the artwork within the music file
- Save the artwork in the album's folder
Embedding the artwork in the music file
Most media players and special "tagging" applications can be used to embed album artwork in music files.
Saving the cover in the album's folder
If all tracks of an album are stored in their own folder you can simply move the artwork image file to that folder. The Teufel Streaming system will then associate the image file with the album.
Supported image formats, size and resolution
We recommend the usage of JPEG images (300x300 pixels, 72 dpi).
Of course, other image formats (PNG, GIF) and sizes are also supported.
Most MP3 players may additionally be connected to the Raumfeld Base via USB. Should your system not contain a Raumfeld Base you may connect the MP3 player via USB to your Speaker or Connector.
Please note: As the music library on iPods and iPhones is not directly accessible for third party manufacturers, iPods and iPhones can only be connected via their analogue audio output.
- Use your file management application to navigate to the folder that contains the playlists file (.wpl, .m3u, .pls oder iTunes Music Library.xml). It doesn't matter if it is stored on the Raumfeld Base, USB storage or a network share.
- Delete the playlist file
If the playlist file was stored on a network share, you have to manually initiate a rescan of the network share in order to see the changes in Playlists > Imported. Find out more: https://manual.teufel.de/en/online-manual-scanning-of-music-resources.html.
- iTunes Playlists (iTunes Music Library.xml)
- Windows Playlists (*.wpl)
- M3U Playlists (*.m3u)
- PLS Playlists (*.pls)
Third party UPnP/AV internet radios that are operated with Raumfeld may have less than perfect synchronisation. When positioned in different rooms, however, there is still no echo to be heard.
1) It’s possible that your home Wi-Fi is unable to recognise the device due to certain settings on your Wi-Fi router.
Solution: You can enable your Wi-Fi to recognise the device by directly connecting the Teufel Streaming device to your router via Ethernet cable and repeating the setup process.
2) Other active network devices may prevent your Wi-Fi router from recognising the device. Solution: Deactivate all devices (such as smart TVs, laptops, smartphones, tablets, AV receivers, media servers) that use your LAN or Wi-Fi network for the duration of the Teufel Streaming setup process. Before beginning a new setup process, be sure to restart your Wi-Fi router and complete the setup using a single smartphone.
3) The use of switches, repeaters and additional access points within your home Wi-Fi network can hinder device recognition. Solution: Either restart all additional network devices or turn off these devices for the duration of the setup process.
4) If you use a cordless phone over a landline (DECT) and have this phone in the vicinity of your router or Teufel Streaming device, it may be disrupting your Wi-Fi signal. This is because both DECT and Wi-Fi use the same 2.4 GHz signal.
Solution: Relocate your DECT base station or switch off your DECT telephone for the duration of the setup process.
1) The setting "Smart network change" switches the smart device to the mobile network whenever the WiFi signal becomes too weak. Since Teufel Streaming requires a continuous Wi-Fi connection, this setting cannot be used.
2) The "Auto IP Support" function determines when the home Wi-Fi network does not support DHCP (the automatic assignation of a network address). Although a very useful feature, Auto IP Support cannot be used with the Teufel Streaming system. This is because Teufel Streaming devices need to be assigned an IP from the router in order to independently communicate with the home network and internet.
Solution: The Android functions "Smart network change" and "Auto IP Support" should be deactivated. Next, ensure that your router allows for DHCP and then repeat the setup process.
Solution: Deactivate all devices (such as smart TVs, laptops, smartphones, tablets, AV receivers, media servers) that use your LAN or WiFi network for the duration of the setup process. Before beginning a new setup process, be sure to restart your WiFi router and complete the setup using a single smartphone.
Please note that the processes carried out during the notification "Configuring device..." may take a few minutes to complete. We therefore ask for patience in order to ensure that the setup is indeed experiencing difficulty completing and that your smartphone does not go into standby mode.
Tip I: You'll often find your WiFi password / network key on the back of your WiFi router. As long as this password has not been changed, it should still be valid.
Tip II: The auto correct function in your smart device may be changing the characters you enter. We therefore recommend switching off this auto correct function.
1) If the signal strength of your Wi-Fi network is only 30% or less where you are holding your phone, it will not appear. Since the system requires a signal strength greater than 30% in order to function without drops in playback, only networks that offer this minimum signal strength will be displayed.
Solution: Increase the signal strength of your Wi-Fi signal and/or find a better place for your device.
2) It’s technically possible to hide a Wi-Fi network. This option is usually offered in a Wi-Fi router’s settings. If you’ve selected this setting option, your home network will not be displayed within the app.
Solution: Make sure that the Wi-Fi is set to "visible“.
1) The function DHCP (the automatic assignment of a network address) is not switched on. This prevents the Raumefld device from registering with the home WiFi network.
Solution: Activate the DHCP function in your home WiFi router’s settings. Tip: Some manufacturers list DHCP as a feature with names like “Reject unknown devices”. Contact the manufacturer of your router if you are unsure what this feature is called.
2) A so-called Mac filter is switched on in your router. This filter prevents the registration of unknown devices which includes all devices not already using the WiFi network.
Solution: Deactivate the Mac filter for the duration of the setup process or add your device to the router’s list of known devices. Note: Some manufacturers refer to the Mac filter with names like "Only allow known devices.“ Contact the manufacturer of your router if you are unsure what this feature is called.
3) The router is blocking direct communication (the exchange of data) between two or more devices connected to the same WiFi network. Known as “client isolation,” this setting is often preconfigured, especially with guest network access.
It requires direct communication in order to receive information (such as when you press "play“) from your smartphone. The client isolation setting is often overlooked as it does not prevent a device from accessing the internet.
Solution: Do not use a guest WiFi access for your device; deactivate the client isolation feature.
Note: Some manufacturers refer to client isolation under different names. It may also be a preconfigured part of a security level you have chosen for your WiFi network. Contact the manufacturer of your router for more information.
Hence your components keep up to date and you can benefit from advancements in the latest software releases.
Since Raumfeld software version 1.3 it is also possible to install updates via a USB stick. This enables you to apply updates without an internet connection.
Of course we also provide continuous updates of the Raumfeld App for your smartphone. These updates are distributed via your smartphone's app store.
Solution: If the resources are offline, simply open the Teufel Reumfeld app on the device from which you would like to stream digital content.