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HDSX TV Sound Optimizer Toslink


HDSX TV Sound Optimizer with powerful DSP for consistent volume and intelligible speech on TV and streaming. Lossless audio transmission thanks to fiber optics. Unique sound upgrade with 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 on the analog output. Also ideal for gaming with headphones.

User Manual PDF
Video Manual

30 days money back
Shipping within 24 hours on weekdays


Patented audio technology for unique TV sound

Experience TV sound without volume fluctuations. The remote control only regulates the program selection, a consistent volume and intelligible dialogues are made possible by this unique innovation from Germany. A powerful chip ensures the highest sound quality and best TV sound enjoyment.

Technical data

  • Enclosure: Metal, black
  • Power supply: DC 5V via Micro USB B socket
  • Audio Input: Toslink | Digital optical
  • Audio Output Toslink: Toslink | Digital optical
  • Audio Output Analog: 3,5 mm mini jack Stereo
  • Weight: 102 g
  • Dimensions: Length: 5,3 cm, Wide: 9 cm, Height: 2,38 cm
  • Soundformat: PCM 2.0 to Hi Resolution Audio 96kHz, 24 bit
  • Immersive: HDSX.headphone Surround Sound included in the signal from the Audio Output Analog

Delivery Contents

  • HDSX TV Sound Optimizer
  • Cable USB 2.0, USB A connector to Micro USB B connector (50 cm)
    (This cable is located in the right inner wall of the packaging)
  • Cable Toslink (50 cm)
    Please remove protective caps at both ends before use
  • Self-adhesive Velcro straps for fixing the unit behind your TV set
  • 4x Rubber feet, self-adhesive for placing the unit on a horizontal
  • User Manual

Enthusiastic reviews

Satvision (issue 5/2021):

“The HDSX TV Sound Optimizer … achieves the top rating of ‘very good’. Significantly responsible for this is the fact that it completely fulfills its promise, namely to make voices more understandable as well as to eliminate sound fluctuations between different channels, content and playback media without cutting off certain frequencies.”

Süddeutsche (04/25/2021):

“The constant back and forth with the volume rocker is no longer necessary, and the best thing: Unlike the night mode of some soundbars, which simply cut off the volume peaks, you still don’t have the feeling as a listener that the sound is leveled here.”

Service line & technical support

Our service line is on for you: Call us at 0800 767 68 74 (free of charge in Germany) or write to info@hdsx.com, and we will be happy to help you with any questions during our service hours.

Our team looks forward to hearing from you.


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