Is RCA same as optical?
William Smith
Published Mar 05, 2026
Is RCA same as optical?
RCA is the oldest, optical and coaxial deliver the same quality, and HDMI is the best of the bunch in terms of compressed or uncompressed HD audio. Specifically, TOSLINK uses fiber-optic cables that transfer information through the light that’s beamed through glass or plastic fiber optic tubes.
Should I use RCA or optical?
If the distance is sufficiently less than 50′, within the length of available optical cables, use optical. If not, you’ll have to use the RCA cables. If it sounds good, fine. If you get hum or RF rubbish, look for a better system.
Why does my Samsung TV say audio out optical?
The optical cable isn’t securely connected. The optical cable may be faulty. Your TV isn’t updated with the latest software version. The connected third-party sound bar, or home theater system may not be compatible with your TV.
How to play audio through internal / external speakers?
You can configure the Digital Sound Out settings. (digital optical or HDMI ARC)/TV’s internal speakers + external audio device (digital optical) is selected. You can enjoy richer TV audio with greater convenience by connecting an LG audio device carrying the logo.
Can you use optical and speakers on the same TV?
Some TVs don’t allow combined optical and speakers at the same time. I borrowed a set of headphones that are Dolby/DTS capable. These work on the optical only setting, & also on the optical + internal speakers setting.
Do you need to disable optical audio on TV?
No need to disable the TV speaker on sound output because optical port is always enabled. However though, you will be needing to adjust the volume of the headphone through the headphone it self. 02-17-2019 02:08 PM in I got the optical to RCA adapter and it does work.
Can you use optical audio with Bluetooth speakers?
Using the Optical Audio out will cause the speakers to stop working. I was in error about the bluetooth on this model. Be sure to click ” ✓ Accept as Solution” when you find an answer that works for you. Please note, notification emails are a DO NOT REPLY address, you must log-in on the community page in order to respond. 02-06-2019 12:17 PM in
No need to disable the TV speaker on sound output because optical port is always enabled. However though, you will be needing to adjust the volume of the headphone through the headphone it self. 02-17-2019 02:08 PM in I got the optical to RCA adapter and it does work.
Can you hook up external speakers to a home theater system?
Most of the time, it’s impossible to plug external speakers directly into these now. What you can do is plug a Hi-Fi system, soundbar, sound system, or home theater receiver into those sockets. You can even combine your speakers with an amp if you have the know-how.
Using the Optical Audio out will cause the speakers to stop working. I was in error about the bluetooth on this model. Be sure to click ” ✓ Accept as Solution” when you find an answer that works for you. Please note, notification emails are a DO NOT REPLY address, you must log-in on the community page in order to respond. 02-06-2019 12:17 PM in
Why is analog audio not working on my TV?
It may be that your TV won’t convert digital audio (via HDMI) to analog audio. Kind of stupid as you can’t use the headphones or analog out. If the set top box has analog out then connect it directly to the stereo. If not then you can use an HDMI audio extractor
