The answer is "it depends". There are a few variables: is the action too high, too low, where is it off (saddle, nut, 12th fret). I'll give a brief explanation.
THIS ADVICE HAS NO GUARANTEE - IF YOU ARE UNSURE, TAKE IT TO A LUTHIER
1) too high
-NUT: you can either file the nut with nut files (expensive) or sand some of the bottom of the nut off.
-NECK: adjust your truss rod
-SADDLE: sand a small amount of material from the bottom of the saddle
2) too low
-NUT: buy a new nut, or add krazy-glue and baking soda to fill in the grooves, refile to your liking
-NECK: adjust truss rod
-SADDLE: buy a new saddle or shim the saddle you have
I dont know if your question has been answered or not but, the short answer is yes, you can adjust action on an acoustic guitar. Most times, you have to access truss-rod nut from inside the sound-hole. Usually, it's an allen wrench (key), 4mm. Sometimes, 5mm.
Turn the thumb wheels on the bridge accordingly.
A guitar's truss rod is a long metal rod that runs from the body of the guitar along the back of the guitar's neck all the way to the headstock. It's purpose is to provide strength to the guitar neck against the extreme tension of all the guitar strings. Also, without the stability provided by truss rods, guitar necks would have to be made from much harder and stronger woods to take the tension of the strings, which would in turn raise costs significantly. The use of a truss rod allows manufacturers to make guitar necks out of much softer woods or composite materials. It is also a means to stabilize and adjust the relief of the guitar neck (forward curve).
No. Some less expensive guitars do not have truss rods in their necks. Any guitar that is more than a toy should have a truss rod, with out the truss rod if your guitar got into some moisture and the neck bowed,you would not be able to straighten the neck out.
You can't!
not quite. the truss rod will in fact reinforce the neck, but the bridge area can really suffer from high tension. not to mention the saddle nut and tuners. When a CF Martin guitar was custom built for this kind of versatility it used a totally different engineering and it was much more acoustic than classical. why ruin a guitar?
NEVER adjust the truss rod in order to lower the strings. The majority of string height adjustment is done at the bridge on either the bridge posts or individual saddles depending on your guitar. The truss rod is only there to correct any humping or bowing in the neck, if you tighten it then the strings will appear to lower but that's only because you're bending your guitars neck back! This will render your guitar pretty much unplayable until it's sorted so if you're not completely confident you know what you're doing then it's best to just leave any truss rod adjustment well alone. If you value your guitar then seek the advice of a qualified or experienced luthier or repair guy.
A guitar's truss rod is a long metal rod that runs from the body of the guitar along the back of the guitar's neck all the way to the headstock. It's purpose is to provide strength to the guitar neck against the extreme tension of all the guitar strings. Also, without the stability provided by truss rods, guitar necks would have to be made from much harder and stronger woods to take the tension of the strings, which would in turn raise costs significantly. The use of a truss rod allows manufacturers to make guitar necks out of much softer woods or composite materials. It is also a means to stabilize and adjust the relief of the guitar neck (forward curve).
No. Some less expensive guitars do not have truss rods in their necks. Any guitar that is more than a toy should have a truss rod, with out the truss rod if your guitar got into some moisture and the neck bowed,you would not be able to straighten the neck out.
You can't!
not quite. the truss rod will in fact reinforce the neck, but the bridge area can really suffer from high tension. not to mention the saddle nut and tuners. When a CF Martin guitar was custom built for this kind of versatility it used a totally different engineering and it was much more acoustic than classical. why ruin a guitar?
NEVER adjust the truss rod in order to lower the strings. The majority of string height adjustment is done at the bridge on either the bridge posts or individual saddles depending on your guitar. The truss rod is only there to correct any humping or bowing in the neck, if you tighten it then the strings will appear to lower but that's only because you're bending your guitars neck back! This will render your guitar pretty much unplayable until it's sorted so if you're not completely confident you know what you're doing then it's best to just leave any truss rod adjustment well alone. If you value your guitar then seek the advice of a qualified or experienced luthier or repair guy.
It depends on the problem with your truss rod. I answered a question already on how to adjust the truss rod on a bass guitar. Search for "How do i adjust a truss rod on a bass guitar?" If your truss rod is broken or the threads are stripped search for "truss rod rescue kit". Before you buy it, read the details and watch the video so you know what you're getting into.
It's a long rod lodged up in the neck of a guitar used for keeping the neck of the guitar straight. The truss rod is used to allow the neck to bend either way in response to the tension of the strings. Without it, there would be no steel string guitars, the neck wouldn't be able to handle the tension of the strings. Many beginners think that adjusting the truss rod will lower the "action" or how high the strings are from the fret board of the guitar. This is not entirely true and it is probably more of a Nut and saddle/bridge adjustment that is needed.
Not quite sure what your asking, If its buzzing because the jack is the problem then you probably need to re solder the wires in either the guitar or the cord, if its the cord it would be easier to just buy a new cord. If its buzzing when the guitar isn't plugged into the amp the try adjusting the truss rod.
There is no real answer, as anyone could make a new kind of truss rod, for example a licorice truss rod. Perhaps you mean that a truss rod could be under stress or under compression, or be designed for both.
Well, your question is a bit flawed because, technically, a classical guitar is also acoustic. Classical guitars have nylon strings and wider necks. They also have a much softer, more subdued tone and are usually played using "finger style" technique. A "standard" acoustic guitar has steel strings and a more narrow (and reinforced) neck. Steel string guitars provide a "brighter" sound, can be a bit harder on the fingers, and are usually (though not always) played with a pick.*Pro tip: Never string a classical guitar with steel strings. The necks of classical guitars are not reinforced (with a metal rod called a truss rod) and cannot handle the additional tension of steel strings. The result will be catastrophic to the guitar.
It is a good guitar if your just starting out. They are cheaper because epiphone cuts corners on the final touches of the acoustic guitar, which is easily fixed. If your planning to buy it online, I'd suggest taking it to a guitar shop and having them setup your guitar (ask for fret setting and truss rod adjusting), as the frets are usually sharp on the edges and makes it difficult to play. It will cost around $20. This will make that guitar play like a $500 one.
When attempting to readjust the neck contour of your guitar keep a few things in mind. Let's start at the same place....the body of the guitar, preferrably the strap button. Hold the guitar so that the headstock is pointing slightly skyward and get a good look at the neck. I always use the strings as a guide. Since there is only a straight line between two points, this is a good way to see just what needs done. As you are looking from the end of the guitar to the headstock you can see that the strings are perfectly straight. Then get a good look at the neck and compare them. More often than not, the neck has a "back bow" or too much relief in it. It looks like it's sagging in the middle? At which point, you tighten the truss rod. If it looks like there's a hump from about the sixth fret to the somewhere around a 11th or 12th fret, the neck has not enough relief in it, you should loosen the truss rod. How to do that? Easy as pie......from the other end of the guitar (looking from the headstock towards the body) turn the truss rod counter-clockwise to loosen it and clockwise to tighten it. HOWEVER be very careful to not over do it. A lot of do it yourself jobs end up in my shop because people don't realize that this should be done by someone with some experience. If you over do it or strip the truss rod out....it's bye-bye guitar time. So only turn the truss rod a quarter of a turn at a time. Let the guitar set up for about 20 minutes or more and start over. Checking the neck contour to monitor progress. Until you get the hang of it, it takes a lot of time and patience. But rest assured that you won't be throwing guitars away left and right while you're honing your new skill.