Connecting external speakers to a TV requires matching the TV’s audio output type to the speaker system’s input, then switching the TV’s sound output setting from its internal speakers to the connected device.
TV speakers rarely deliver the audio experience movies and music deserve. Whether you’re adding a soundbar, surround system, or a pair of bookshelf speakers, the connection method depends entirely on what ports your TV and speakers share. Here is exactly how to get sound out through your external speakers — without wasting money on the wrong cable or connection type.
Choose the Right Connection for Your TV and Speakers
Modern setups work best over HDMI ARC/eARC when both your TV and soundbar or receiver support it. Optical (TOSLINK) is the reliable digital fallback, while Bluetooth covers wireless convenience. RCA and 3.5 mm analog connections remain the standard for older equipment and simpler speaker systems. The first step is checking your TV’s audio output ports and your speaker’s available inputs — match them, and you are already most of the way there.
Connecting Through HDMI ARC or eARC
HDMI ARC (Audio Return Channel) and its newer eARC version carry TV audio over a single HDMI cable and enable volume control through the TV remote via HDMI-CEC. This is the preferred method for modern soundbars and AV receivers.
Plug a High-Speed HDMI cable into the TV’s port labeled HDMI IN (eARC) or HDMI ARC — not a regular HDMI input — and connect the other end to the speaker or receiver’s HDMI OUT (TV-ARC/eARC) port. On a Samsung TV, press Home → Menu → Settings → All Settings → Sound → Expert Settings and set HDMI eARC Mode to Auto, then change Sound Output to the external device. Ensure HDMI-CEC (often called Anynet+ on Samsung) is enabled for remote control to work.
Using Optical, Bluetooth, or Analog Connections
Optical is the most common digital fallback when HDMI ARC is unavailable. Connect a digital optical cable from the TV’s Optical Out to the speaker’s Digital Audio In (Optical) — the connector only fits one way, so do not force it. Then set the TV’s Sound Output to Optical. For Bluetooth, put the speaker in pairing mode, then on the TV navigate to Sound Output → Bluetooth Speaker List and select the device. If your TV lacks Bluetooth, connect a Bluetooth transmitter to an available RCA or 3.5 mm output instead.
For legacy analog setups, locate the TV’s red/white RCA Output jacks (labeled Audio Out) and connect matching RCA cables to the speaker inputs. Alternatively, use a 3.5 mm cable from the TV’s headphone or audio output jack to the speaker’s AUX input. After connecting, change the TV’s audio output setting to route sound to the external speakers rather than the internal ones.
Panasonic’s guidance notes that TVs typically cannot drive external speakers directly — the TV must connect to an audio system, which then powers the speakers. For stereo systems or receivers without ARC, optical is the advised digital route. TCL’s documentation confirms the same principle: match the port type and configure the audio output setting in the TV menu.
Once you know your connection type, the setup takes under two minutes. If you are shopping for a new speaker system, browse our tested recommendations for the best external speakers to find the right match for your TV and your room.
Common Mistakes That Stop External Speakers From Working
The most frequent failure is plugging the cable into a regular HDMI port instead of the labeled ARC/eARC port — the TV simply will not send audio through a standard input. Another common error is leaving the TV’s Sound Output set to TV Speaker after connecting the cable, which keeps the internal speakers active and the external ones silent. Always verify the connection direction: TV output to speaker input. For optical connections, inserting the cable in the wrong orientation or using a port that is not actually optical (the trapezoidal TOSLINK shape) will block audio entirely.
FAQs
Can I use both the TV speakers and external speakers at the same time?
Most TVs mute the internal speakers when an external audio device is selected through the Sound Output menu. Some models offer a simultaneous setting, but this is uncommon and usually results in poor timing between the two sound sources.
Do I need a special HDMI cable for eARC?
Yes, eARC requires a High-Speed HDMI or Ultra High-Speed HDMI cable to handle the higher bandwidth. Standard HDMI cables may not support the full audio quality eARC can deliver, especially for lossless formats like Dolby TrueHD or DTS-HD Master Audio.
Why is there no sound after connecting the optical cable?
The optical connector only fits in one orientation — check that it clicks fully into place. Also confirm the TV’s Sound Output is switched to Optical and that the external speaker or receiver is set to its optical input source rather than another input it may default to.
References & Sources
- Samsung Levant. “How to Connect an External Speaker to a Samsung TV.” Covers HDMI ARC, optical, Bluetooth, and wireless network speaker setup steps.
- TCL. “How to Connect Speakers to Your TV.” Details RCA, 3.5 mm, optical, Bluetooth, and transmitter fallback connections.
Mo Maruf
I created WellFizz to bridge the gap between vague wellness advice and actionable solutions. My mission is simple: to decode the research and give you practical tools you can actually use.
Beyond the data, I am a passionate traveler. I believe that stepping away from the screen to explore new environments is essential for mental clarity and physical vitality.