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XL party blaster

(118) 599,99 499,99 Incl. VAT 16% savings
  • Ready for shipping within one day
  • 29,99 Shipment (Teufel's climate-neutral shipping)

  • 8 week trial
  • Directly from manufacturer
  • Free & easy returns



Why we love this product

If you need to feel the bass, not just hear it, and if no party is complete without room-shaking music - the BOOMSTER XL is for you.


Key advantages at a glance

  • Portable XL stereo speaker with Bluetooth, FM radio and giant down-firing subwoofer
  • 3-way system: 2 tweeters, 2 midrange drivers + subwoofer for powerful hi-fi sound with mega bass
  • Bluetooth 4.0 with aptX® & NFC for CD-quality wireless audio with Spotify, YouTube, etc.
  • FM radio with preset buttons & seek function in a robust aluminium enclosure
  • 2 band equalizer makes it easy to adjust sound levels
  • AUX input, USB charger and removable carry strap
  • Dimensions: Over half a meter wide, 20 cm deep
(4.64 of 5 out of 117)
All reviews

When tech nerds decide to make a boombox...

The BOOMSTER XL is the result: A powerful, portable all-in-one speaker with the best sound in its price class. And no wonder. The same acoustic engineers who developed Teufel's award-winning high-end stereo speaker, the Definion 5, are also responsible for the BOOMSTER XL.


Technical highlights at a glance

  • 3-way stereo system for balanced, true-to-source sound
  • Two tweeters capture the finest details in all genres of music
  • Two midrange drivers ensure that vocals are played back with naturalness and warmth
  • Giant downfire subwoofer produces powerful, dry and very deep bass
  • An extremely low-noise class D amplifier with an 80-watt maximum power capacity generates high, distortion-free levels even in large rooms
  • 2-band equalizer makes it easy to adjust sound levels
  • Adjustable subwoofer levels

Wireless sound at its best

Our products guarantee a clean, stable Bluetooth connection with minimal power consumption. Ranges of over 10 metres can be achieved.

Funktioniert für Systeme mit Android.

Stream music, film sound or games from your smartphone, tablet, notebook, PC or Mac.
Enjoy the best sound whatever way you like to.

On the lips sound

Video sound from e.g. YouTube or other apps and games is smooth and lip-synchronized.

Bluetooth aptX

Qualcomm aptX

Bluetooth guarantees a wireless connection with minimal power consumption. Video sound is transmitted in-sync with on-screen images. The aptX codec offers almost CD quality. AptX does not currently work on iOS systems.


NFC enables a simple connection of two Bluetooth devices without complex pairing.
NFC technology makes it possible for smartphones to pair with the BOOMSTER XL by simply bringing the two devices into close proximity. The system can memorize the profile of up to 6 different devices such as smartphones and tablets for instant connectivity.

Listen for longer

The BOOMSTER XL has a high-capacity lithium ion battery with a long runtime for musical adventures far from power outlets. A handy USB charging socket even lets you charge your smartphone with an up to 2 amp charging current.

Audio input connections

Analoger Stereo-Eingang zum Anschluss von MP3-Player, CD-Player, TV-Kopfhörerausgang oder anderen Quellen.
A 3.5 mm jack socket supports devices with mini stereo jacks. This allows for a range of source options in addition to Bluetooth.


Classic FM radio reception.
The integrated FM radio uses an external antenna for maximum reception and features a seek function to help you find the perfect radio station no matter where you are. Three preset buttons can be programmed with your favourite stations for even faster access to your music.

Aluminium casing

The BOOMSTER XL is made from highly robust yet attractive anodized aluminium and is even splash proof – nice to know when out and about in the great outdoors.

BOOMSTER XL Groß Frontansicht Teufel


Practical rubberised handles and a rubber slip-proof bottom add to the system’s portability and placement options. A handy carry strap attaches magnetically to a clever mount and can be easily removed.

Included components

  • 1× Silicone feet for Boomster XL
  • 1× Boomster XL rechargeable battery-pack
  • 1× power cable for Boomster XL


  • BOOMSTER XL von Teufel


    A portable sound system with 2 tweeters, 2 mid-range speakers and a subwoofer for those who want to enjoy powerful XL sound on-the-go.

    • Description Item
      Width 51.00 cm
      Weight 9.95 kg
      Height 26.00 cm
      Miscellaneous Includes removable carry strap
      Depth 20.00 cm
    • Description Item
      AUX Yes
      Stereo jack 3.5mm - in 1
      Bluetooth aptX Yes
      Bluetooth 4.0 with aptX-Codec
      Bluetooth Yes
      Compatible with Amazon Echo Yes
      Compatible with Google Home‌ Yes
      NFC Yes
      Miscellaneous USB charging function for smartphones
      USB 2.0 Yes (only for charging)
    • Description Item
      Android Yes
      Microsoft Yes
      iOS Yes
    • Description Item
      FM - UKW Yes
      Radio present Yes
      Channel memory slot - FM 3
      Miscellaneous Wire antenna can be rolled out of the back side from its own storage compartment
    • Description Item
      Battery type Lithium-ion battery
      Automatic on/off Yes
      Powerbank Yes
      Storage for settings when disconnected Yes
      Total power output capacity (RMS) 90 Watt
      Amplifier configuration 2.1
      Amplifier channels 5
      Complete sound system Yes
      Fuse Yes
      Amplifier technology Class-D
    • Description Item
      Acoustic principle 3-Way-System
      Downfire Yes
      Enclosure type Bass reflex
      Enclosure type Closed
      Enclosure material Aluminium, ABS synthetic
      Enclosure surface Anodised
      Tweeter (number per enclosure) 2
      Tweeter (diameter) 25.00 mm
      Tweeter (material) Fabric
      Midrange driver (number per enclosure) 2
      Midrange driver (diameter) 70.00 mm
      Woofer (number per enclosure) 1
      Woofer (diameter) 160.00 mm
      Frequency range from/to 44 - 20000 Hz
      Maximum sound pressure level 105 dB/1m
      Equalisation openings (pos.) Bottom
      Miscellaneous Integrated handle
      Midrange driver (material) Cellulose, coated
      Woofer (material) Reinforced synthetic

Expert reviews

Product Ratings
(4.64 of 5 out of 117)
Almost perfect!
Chic, loud
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The mobile power station
Super sound and an acceptable battery life let you forget the weight when you turn up the volume at the quarry pond. 8 hours of battery life are possible at a volume of just under 50%.
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Udo Cz.
Chic design... Robust soundHigh and low frequencies adjustable...Unfortunately, a Bluetooth connection with the laptop HP Pavilon was not possible, but seems to be a common problem with various laptops...Coupling with mobile phone Samsung is no problem...All in all, I can only agree to a purchase, as this device easily replaces a home system and fills a single room with rich and powerful sound.
Unfortunately rattling noises at higher volume, even after exchanging the second device.
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I am very pleased! Sound perfect. Will remain your customer.
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Bloody good! Boombastic sound!
Clear recommendation to buy! The pack with the Teufel should be taken by everyone who appreciates "portable" hearing pleasure. Every audiophile will be convinced by this loudspeaker, because it sounds like it should sound, push and push with every kind of music. To all know-it-alls who think that the BOOMSTER XL is too expensive, they will be convinced after 3 seconds! The only drawback is that the Bluetooth battery operation has a slight beeping noise, but this could be fixed by a firmware update. Radio or DAB is no longer needed and for all those who can't read the manual: The running light can be switched off and also contains the battery indicator, equalizer presets are on the buttons 1, 2 and 3! Would buy the BOOMSTER XL again any time because it is worth every cent. And about the shipping: The cheek of UPS to get rid of such an expensive package in the wrong house as "signed and delivered"!
Very satisfied
It went well. Box is very well made and has a great sound. Only to recommend. thumbs up
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top sound
I was looking for a Bluetooth box with good sound and volume for our terrace / pool...and I found it :-) When I was choosing it, mobility with the box was not the most important thing for me, because the box is a bit too heavy and too big for that. But everyone who is looking for a box that he only carries in the garden to have good sound, for it it is an absolute recommendation to buy! Even if not quite cheap. The speaker has also been tested at a garden pool party > test passed! Bass, sound, volume > TOP!
Top class
I am completely satisfied with the BOOMSTER XL. Easy to handle and full sound experience. Thanks!
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Simply great sound and especially with good battery life!
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* Automatically translated by DeepL