Modern TVs offer impressive picture quality, but their sound often falls short of expectations. A soundbar is an ideal solution to enhance audio for movies, series, or YouTube videos without needing to connect an amplifier or set up surround speakers.
These compact devices are usually placed in front of or below the TV, take up little space, and still provide significantly better sound than built-in TV speakers. But what connection options are available, and which method delivers the best audio quality? We explain the different connection methods, provide tips for optimal setup, and answer the most common questions about connecting a soundbar.
Properly Connecting a Soundbar: The Different Connection Options
1. HDMI Connection (ARC/eARC)
A popular way to connect a soundbar to a TV is via HDMI using ARC (Audio Return Channel) or eARC (enhanced Audio Return Channel). An HDMI cable not only transmits video but also audio signals to the screen, which can then be forwarded via a separate cable to a stereo system or soundbar if needed. This connection offers the highest sound quality and supports modern audio formats such as Dolby Atmos and DTS:X.
Advantages:
- Transmits both audio and control signals (TV remote can control volume)
- Supports high-quality audio formats; eARC offers higher bandwidth for lossless audio formats like Dolby TrueHD or DTS:X
- Reduces cable clutter with a single connection
Setup Instructions:
- Connect an HDMI cable to the HDMI-ARC/eARC port on the TV and the corresponding input on the soundbar.
- Turn on the TV and the soundbar.
- Ensure that the TV audio output is set to "HDMI ARC" or "eARC."
- The soundbar should now automatically function as the audio output device.
2. Optical Connection via TOSLINK
If the TV or soundbar does not support HDMI-ARC, an optical cable (TOSLINK) is a good alternative. It transmits digital audio signals and offers perfect digital sound quality but does not support modern multi-channel formats like Dolby Atmos.
Advantages:
- Unaffected by electrical interference
- High sound quality without signal loss
- Supports Dolby Digital and DTS
Setup Instructions:
- Connect the optical cable to the optical output on the TV and the optical input (also known as SPDIF) on the soundbar.
- Activate "Digital Audio Output" in the TV settings and select the "optical" option (or similar).
- The soundbar may need to be set to the correct input.
3. Bluetooth Connection
The wireless connection via Bluetooth is convenient if you want to avoid cables. It is particularly suitable for simple setups and for users who prefer a flexible connection without wiring.
Advantages:
- Wireless connection without installation effort
- Easy pairing with TVs, smartphones, and other devices
Disadvantages:
- Latency (delay) may occur
- Limited range
- No support for high-resolution audio formats
Setup Instructions:
- Activate the pairing mode on the soundbar.
- Find the soundbar in the Bluetooth settings of the TV or streaming device.
- Establish the connection and select the soundbar as the preferred audio output device.
Frequently Asked Questions About Connecting Soundbars
Which connection method is the best?
The best connection method is HDMI-ARC or eARC since it offers the widest range of audio formats and the most control options. If HDMI is unavailable, an optical connection is a good alternative.
Can a soundbar be expanded with additional speakers?
Yes, many soundbars support additional surround speakers or subwoofers. These are usually connected wirelessly via Wi-Fi or Bluetooth.
Can a soundbar be connected to any TV?
In general, yes, as long as the TV has a compatible HDMI port, optical output, or Bluetooth connection. Older TVs without these ports may require an adapter but still need an audio output—not just inputs.
Should the soundbar be connected to the TV, an AV receiver, or a streaming device?
The best solution is a direct connection to the TV (HDMI-ARC/eARC). If the TV lacks an ARC port, the soundbar can also be connected to an AV receiver or a streaming device (e.g., Apple TV, Amazon Fire TV Stick).
Conclusion
A soundbar can significantly improve TV sound. The choice of the right connection method depends on the available ports and personal requirements. HDMI-ARC/eARC is the best option for high-quality audio formats, while optical and wireless connections are practical alternatives; Bluetooth models can also be paired with smartphones or tablets. Choosing an expandable soundbar allows for additional speakers to be added later. With the correct setup, the sound experience can reach a new level, making TV sound much clearer, more powerful, and more immersive.