Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: If I plug in headphones to the output audio jack, I have no volume control.  Can this be changed?
Document: I have no need for more inputs.The only stereo output is a 1/8" phone plug - it would be nice to have rca jacks for stereo output, so you could hook it up to a stereo without all the adapter headaches. I have not set this up yet (the stereo out) so I cannot provide comments about the line - out audio.
It's a good TV but if you want to use a sound bar, look elsewhere! With Samsung TVs, the TV remote will not control the sound bar volume unless you get a Smart TV that has the HDMI-ARC feature (AnyNet they call it). For some reason, Samsung thinks that only people that buy smart tvs will want to use a sound bar with it so the only TVs with ARC are the Smart TVs. If you connect the sound bar with digital audio, you've got good sound.
They said they understood but, that change was out of their area of responsibility.Their suggestion to resolve my issue was to reprogram my 'Dish' remote so that the 'Aux' button would control only the sound bar volume and not the TV.
UPDATE:The picture settings that I previouly stated in my review were made while the `Eco Solutions' settings (found under the `Plug & Play' tab) is set to `On'.However, I found something very interesting. If you change `Eco Solution' setting' to' Off', it dramatically changed the picture. When you first turn the setting to `Off', the picture turns exceptionally bright. However, it is not as bad as you think.
This is a great TV. My only complaint is that it doesn't have enough inputs. I would have liked it more if the audio out was variable but this is a non-issue as I use a home theater system that controls the volume just fine.
It's almost a case of "what you see is what you get. "The audio also has several "preset" options: Music, Movie, Clear Voice, and Amplify. Clear Voice and Amplify seemed too muted, so I never even bothered with them. Music and Movie, on the other hand, increased sound quality (and volume) but, like with video, do not allow you to manually adjust the equalizer.Finally, we have the Samsung Auto Motion Plus.
The sound is OK, not great but adequate for normal viewing. The TV has analog audio (3.5mm jack) and digital audio (optical) outputs for connecting to an external sound system if needed. The user's manual is little more than a cursory explanation on a folded pamphlet, but the menu system is very intuitive and easy to use. A great value TV!
This online purchase was "Live Chat" assisted which was very helpful. The TV arrived in fine condition; I was able to set it up without fuss. The most frustrating thing I found was the lack of a digital jack for my Sennheiser wireless headphones...... Fortunately Comcast advised me to consult Radio Shack to obtain a digital OPTICAL CONVERTER AND CABLE which connects to the optical jack on the back of the TV. Some $70+ dollars later, I was able to use my headphones.
And the Samsung sound bar (450 model) does not recognize any of the device codes available in my Cable tv remote control. so no luck there. Only possible solution is to get a Harmony remote and program it for the cable + tv + audio which is stupid in my mind. Samsung blew it. Next time, I'll do more homework and will not consider a Samsung!
great picture, nice stand and design, good price,big enough for a great view and not too overwhelming for the room.2 output connections are not ideal if you want to attach game systems, etc - will have to get splitters, but most tvs I looked at in the size range were similar.
Answer: Eric,It cannot be changed, since it's a "fixed" output, rather than a "variable" output.  Thanks for your interest in Samsung products.--Mr. S