HDSX TV Sound Optimizer Toslink – used like new

1.) Before using the Toslink cable, please remove the protective caps on both sides and remove any existing HDMI (ARC) connection between the TV and the soundbar/sound system. This can block the Toslink connection being established.

2.) Connect the "Digital Audio Out/Optical" of the television, satellite receiver or other sound device to the TOSLINK IN of the HDSX TV Sound Optimizer. If you use a receiver as a sound source, we recommend setting its volume to around 95%. This gives the HDSX TV Sound Optimizer enough input level to fully optimize the sound. After successful installation, control the volume exclusively via the external speaker system in the signal chain behind the HDSX TV Sound Optimizer.

Connection TOSLINK IN/TOSLINK OUT: Connect the TOSLINK OUT of our device to the “Digital In/Optical” input of your soundbar, AV receiver, headphone amplifier or other sound receiving device.

Connection TOSLINK IN/ANALOG OUT: Connect the ANALOG OUT of our device to the “Analog In” input of the soundbar, AV receiver, headphone amplifier or other sound receiving device.

3.) Connect our device to a free USB port on your TV/receiver/set top box using the USB power cable provided. The HDSX TV Sound Optimizer will then automatically switch on and off with the device.

4.) Set the TV, set top box or other sound device’s internal sound settings to “PCM”, “PCM Stereo” or “Stereo”.

5.) Mute the TV's internal speakers. For the best sound, we recommend turning off all internal sound effects on the TV/receiver and connected speaker system.

Tip: Turn down your sound system and/or headphones before you activate the HDSX TV Sound Optimizer for the first time using the switches on the back. If you are listening to very quiet content, the volume may automatically increase.

After these installation steps, you will enjoy perfectly balanced TV sound with consistent volume and understandable speech.

Yes, that's what they're designed for. Both outputs output the optimized sound in lip-sync. So you can, for example, listen through a soundbar and headphones at the same time. If you're using headphones, we recommend a model with its own volume control, as we output a static audio signal on both outputs.

To guarantee the best sound, we supply our Toslink cable with protective caps on both ends. This protects the optical fiber against dust. Please simply remove these caps before use.

Set your TV/receiver/set top box or other sound device to "PCM", "PCM 2.0" or "Stereo" in its internal sound settings. Why? The HDSX TV Sound Optimizer works in uncompressed PCM, the best sound quality. Other digital sound formats, such as Dolby Digital, work in compressed sound quality. This is where the noise comes from. Workaround in the very rare case that your sound device still produces noise despite being set to PCM:

• Connect an “Analog to TOSLINK Adapter” to an analog output on your TV/receiver/set top box, for example called “Audio Out”.
• Connect this adapter to the TOSLINK IN of our device and continue as described under the point “How do I correctly operate the device” on this page.

If you have a TV and a soundbar from the same manufacturer, you can of course control both devices together with the TV remote control if they are connected via Toslink. Manufacturers have different names for this function, also known as CEC. At the end of this article you will find the different names of the function by the manufacturers that we know of.

If your soundbar cannot be controlled with the TV remote control with a pure Toslink connection, here is our tip:

Additionally, connect your soundbar via its AUX IN connection (usually 3.5 mm mini jack format) in parallel to either the analog output of your TV or the ANALOG OUT of the HDSX TV Sound Optimizer.

Be sure to stick with the input source "Digital In" and do not use an HDMI cable in parallel, as this will interfere with the Toslink sound connection. According to the tip described above, your soundbar will now switch on automatically and together with your TV. Then set your desired volume using the soundbar's remote control. Since this will not change again reliably thanks to our device, you can usually put the soundbar's remote control aside. After you have switched off the TV later, your soundbar will also switch off automatically if it no longer receives a signal.

Name of the CEC control function by different manufacturers:

• LG: Sound Sync or Simplink
• Panasonic: VieraLink
• Samsung: Anynet or Anynet+
• Sony: Bravia Theatre Sync
• Pioneer and Onkyo: CEC

When using speakers instead of headphones on the ANALOG OUT of the HDSX TV Sound Optimizer, the sound field is expanded and gains spatial depth.

• TOSLINK has established itself as a digital audio interface across manufacturers. This means that the HDSX TV Sound Optimizer is compatible with the vast majority of TVs, soundbars, AV receivers and other loudspeaker and sound playback systems as well as headphone amplifiers.
• It was important to us to develop a device for everyone and therefore TOSLINK was the digital audio interface of choice. Compatible and simply plug and play.
• The process transmits digital audio data using light pulses through a fiber optic cable built into the cable. This sends pulses that are processed in the receiving device as binary code 0 and 1.
• In addition to the widespread implementation of the standard, TOSLINK is very susceptible to interference and does not emit any electromagnetic radiation that could damage other devices in the vicinity. There are also no ground loops with TOSLINK, as is known from other cable connections.
• To guarantee the best sound, we supply our Toslink cable with protective caps on both ends. This protects the optical fiber against dust. Please simply remove these caps before use.

If your sound transmitting device only has an HDMI connection, connect it to an HDMI audio extractor (not included), which converts the audio signal from the HDMI signal into the optical TOSLINK format. Then connect this extractor to our device and continue as described under the point "How do I set up the device correctly" in this FAQ.

The company Sonos offers a suitable “TOSLINK to HDMI adapter” to also get the sound into the soundbar via an optical signal connection.

If you want to connect headphones to the HDSX TV Sound Optimizer, we recommend a model with its own volume control or a headphone amplifier with its own volume control, as the HDSX TV Sound Optimizer outputs a static signal at its outputs.