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Simply test it for 30 days!

Consistent volume and clear speech for TV and streaming

HDSX TV Sound Optimizer with HDMI ARC connection. Simply plug it between the TV and the external sound system.

HDSX TV Sound Optimizer with Toslink connection. Simply plug it between the TV and the external sound system.

Known from:

The world first: the HDSX TV Sound Optimizer. Decide now against annoying volume fluctuations and for clear speech when watching TV and streaming. Discover the new freedom of sound.

Simple integration

Simply install the HDSX TV Sound Optimizer between the TV and an external sound system (this is a prerequisite), e.g. a soundbar, and you will immediately experience consistent volume and clear speech. Whether soundbar, mobile speaker or hi-fi system: enjoy the new freedom of television.

Consistent volume

No more too loud commercial breaks, too quiet dialogs and constant readjustment by remote control. The patented cutting-edge HDSX.volume technology optimizes the sound in real time and with maximum sound quality.

Clear language

Intelligent optimization of speech intelligibility in real time. The patented cutting-edge HDSX.speech technology makes dialog clear throughout, regardless of whether it’s a powerful action scene or a quiet love scene.

Sophisticated design

Carefully developed for the perfect TV listening experience. Just the size of the palm of your hand, the HDSX TV Sound Optimizer can be mounted directly behind the TV. It is powered invisibly via its energy-efficient USB port.

Real front sound entertainment

The HDSX TV Sound Optimizer adapts TV, cinema, streaming or gaming sound to playback through an external sound system. This innovation takes into account for the first time that an audio system at home is a different
sound reproduction behavior than the loudspeaker systems of large production studios. You’ve never heard your external sound system so balanced and clear.

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A completely new sound experience

Once the HDSX TV Sound Optimizer has been installed between the TV and the external speaker system, you can enjoy the TV sound between individual TV or streaming programs, for example, without annoying volume fluctuations. Everything remains at your desired volume without losing dynamic subtleties. Incomprehensible dialog will then be a thing of the past. Whether it’s a Netflix series or TV documentary: enjoy clear, intelligible sound.

Understanding together

“What did he just say?” is a thing of the past with the HDSX TV Sound Optimizer. Whether you’re watching the TV show with your children and grandparents or enjoying a series evening with friends: The clear sound at a uniform volume setting lets everyone understand everything.

Relaxed television

Constantly adjusting the volume with the remote control is a thing of the past: Even at a moderate volume, the HDSX TV Sound Optimizer lets you experience action scenes intensely without having to worry about disturbing the neighbors or waking up your sleeping children.

For sound systems with HDMI ARC input

  • Unique sound upgrade thanks to HDSX sound technology based on PCM 2.0
  • Digital multi-channel formats can be used in parallel
  • Additional HDSX.360 for virtual 3D sound stage with constantly intelligible dialogs
  • Also ideal for gaming via speakers
  • Order now ONLY HERE for only 124,98 instead of 139,- € (RRP)

For sound systems with optical sound input (Toslink)

  • Lossless audio transmission thanks to Toslink
  • Unique sound upgrade thanks to HDSX sound technology based on PCM 2.0
  • Compatible with all digital and analog sound systems
  • 360-degree HDSX.headphone surround sound for immersive sound when using headphones at the analog output
  • Also ideal for gaming via headphones
  • Order now ONLY HERE for only 114,98 € instead of 129,- € (RRP)

The HDSX TV Sound Optimizer: Patented technology sets new standards for a relaxed TV sound experience. Easy installation thanks to Plug & Play

Klare Sprache beim TV

Thousands of customers are already convinced

The HDSX TV Sound Optimizer has been conquering households in Germany for a year now. “Thanks for the engineering work!” or “An absolute recommendation to buy!” are regular feedback in our reviews.

Test reports regularly award very good ratings to the HDSX TV Sound Optimizer:

satvision, issue 9/2022:
“The special feature…is that even fluctuations or differences in volume, which naturally occur during action-packed scenes, are reduced to a perfect level without cutting certain frequency ranges, as is the case with the night mode of many sound systems, for example.”

HDTV Magazine 3/2021:
“The tonality changes significantly by interposing the HDSX-box: the focus is on speech intelligibility and ‘audibility’. The HDSX-box makes it possible to adjust strongly fluctuating volume levels without nipping the general liveliness of the recording in the bud.”

Customer testimonials and reviews for the HDSX TV Sound Optimizer

HDSX TV Sound Optimizer HDMI ARC
Zu Beginn waren wir skeptisch, jedoch wurden wir nach der Installation des HDSX TV Sound Optimizer HDMI positiv überrascht. Die Sprachausgabe wird klarer und die Lautstärke bei Werbung und Kanalwechsel bleibt nahezu konstant, ohne lauter zu werden. Wir können den Optimizer sehr empfehlen.
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Uwe Napierala
- 19 March, 2024
HDSX TV Sound Optimizer HDMI ARC
👍 Schnelle Lieferung. Einfache Installation. Besserer Ton bei der Sprache und super Sound. Sehr empfehlenswert.
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Reinhard Kielgas
- 12 March, 2024
HDSX TV Sound Optimizer HDMI ARC
Das Gerät erfüllt alle Erwartungen, wir sind begeistert! Wir haben jetzt eine konstante Lautstärkeneinstellung am Onkyo AV-Receiver für alle Programme und Empfangsarten. Für die Einrichtung am Philips 65 OLED 907 benötigte ich Unterstützung, die ich nach einem Anruf bei Kronoton durch prompten Rückruf bekam. Dank des kompetenten und freundlichen Servicemitarbeiters konnte ich mit den telefonischen Anweisungen alle notwendigen Einstellungen rasch vornehmen.
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Matthias Herrmann
- 12 March, 2024
HDSX TV Sound Optimizer HDMI ARC
Anschluss war ganz einfach und das Gerät macht was es soll! Klare Sprache und gleichmäßige Lautstärke, genau das wa ich wollte!
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J.Wille
- 12 March, 2024
HDSX TV Sound Optimizer HDMI ARC
Nach der Lieferung gleich an den LG-Fernseher und die LG-Soundbox angeschlossen, ganz einfach. Der Sound Obtimizer macht seinem Namen alle Ehre. Die Sprache ist deutlich besser zu verstehen und die Lautstärke insgesamt viel harmonischer. Weiterer Vorteil: wenn ich die Dynamik bei einem Spielfilm mit lauterer Musik usw. möchte, kann ich einfach über den Schalter Thrue Pass so hören, als sei das Gerät nicht vorhanden.
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Wolfgang Gründel
- 7 March, 2024
HDSX TV Sound Optimizer Toslink
Top gerät, hätte nie gedacht, das es möglich sei, das der Ton über eine Optische Verbindung zu unserer Harman Kardon Anlage und einem Samsung 55‘‘ TV optimal einstellbar ist. Angesteckt und man braucht zwischen TV un YouTube nicht immer leise oder laut machen. Die Sprache ist gut verständlich geworden und die Fernbedienung ist kaum noch für die Tonanpassung notwendig. Tolles Gerät
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Klaus-Peter Schwarz
- 5 March, 2024