Powerful Bluetooth speaker for five hundred. This waterproof Sencor is now heavily discounted

  • Powerful speaker with 25W RMS and original price of 999 CZK now costs 499 CZK
  • Its IPX6 waterproof design handles rain and splashing water by the pool
  • It offers up to 7 hours of battery life and 360° spatial sound, the disadvantage is microUSB

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Adam Kurfürst
Adam Kurfürst
9. 8. 2025 02:30
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If you’re looking for a decent speaker for the summer that won’t break your budget, the Sencor SIRIUS SSS 6400N is now available for just 499 CZK instead of the original 999 CZK. For half the price, you get a waterproof speaker with a maximum output of 30W and quality 360° spatial sound, capable of filling a larger room or a part of the garden with sound.

Performance and Sound That Surprises

The Sencor SIRIUS SSS 6400N speaker features two speakers and two passive radiators, which together create a maximum output of 30W (RMS 25 W). This is a fantastic value for the 499 CZK price tag – most competitors at this price offer a maximum of 10–15W. Thanks to 360° spatial sound technology, music spreads evenly in all directions, so it doesn’t matter where you place the speaker.

The frequency range of 80 Hz – 16 kHz ensures balanced sound with sufficient bass and clear highs. The DSP digital sound processor takes care of sound optimization, and the total harmonic distortion does not exceed 1%, which guarantees clean reproduction without disturbing elements.

Durability and Practical Features

With IPX6 certification, the speaker is not afraid of rain, splashing water, or humid environments. You can take it to the pool, beach, or camping without worrying about damage. The premium textile cover not only looks good but also protects the speaker from impacts and provides a comfortable grip.

Connection is simple thanks to Bluetooth 4.2 with a range of up to 15 meters. Additionally, NFC technology allows instant pairing by simply tapping your phone. The TWS (True Wireless Stereo) function then allows you to connect two identical speakers for even more powerful sound. There is also hands-free for making calls and an AUX input for wired connection. I would personally appreciate its presence, as my JBL Charge 2 Essential or Xiaomi Bluetooth Speaker, which I recently tested, did not have it. Both are significantly more expensive, by the way.

All-Day Battery Life

The built-in battery with a capacity of 4,000 mAh provides only 7 hours of continuous listening, which is rather below average by today’s standards. Charging takes a maximum of 3 hours, but unfortunately via an older microUSB port. The package includes a USB charging cable, a 3.5mm audio cable, and a textile strap for easy portability.

Comparison with Competitors

ModelMax. OutputWater ResistanceBattery LifePrice
Sencor SIRIUS SSS 6400N30WIPX67 hours499 Kč
LAMAX Sounder2 Play24WIP6724 hours699 Kč
Niceboy RAZE Fusion10WIPX412 hours399 Kč
AlzaPower RAGE R210WIP6520 hours599 Kč
YENKEE YSP 3010BK20WIPX78 hours599 Kč

Price: 499 CZK

Will you get the waterproof Sencor speaker for half price?

About the author

Adam Kurfürst

Adam studuje na gymnáziu a technologické žurnalistice se věnuje od svých 14 let. Pakliže pomineme jeho vášeň pro chytré telefony, tablety a příslušenství, rád se… More about the author

Adam Kurfürst
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