Martin Authentic Acoustic Guitar Strings, Superior Performance Custom Light 11-52, 80/20 Bronze

Love the tone and feel of these on my fender acoustic, should last a long time and the tension / tuning seems to be staying put well. I don't see rust being a problem and as easy to install as any others

These are my standard go-to strings for my acoustics. They sound great, they’re durable, easy to play, feel good under my fingers, bright enough to cut through the mix and perform well in every situation.

Clean crisp tone excellent qualityI had purchased these strings to replace the same strings that I had on for over 3 yearsThey stay in tune really well especially when they are stretched properly after installing

I bought the 12's, bluegrass series, looking for a set of strings to serve as bluegrass strings.As far as what Martin claims, I think they're an honest pack of strings. One claim of theirs is staying in tune. Here I think they are superb. The strings seem to have an amazing relation to one another and they not only stay in tune, but they tune up very nicely. The octaves sound good together.Initially, I thought they seemed dull compared to other strings, but then I kind of preferred that they werent too loud or piercing. Other strings sound too bright at first sometimes, such that you want to break them in or get them dirty, even. These actually sound very balanced out of the pack. One might wish for a tad bit more oomph to them, but at least it is not overdone. They ebb on the smooth side, which sounds good.I think they would be very good as bluegrass rhythm strings, or even for the general strummer and songwriter.Their mellow, even tone gives a sort of natural compression to the strings which makes each string very smooth when formed into a chord. Everything sounds very coherent and together. The high strings aren't too snappy or loud and this makes for very nice chord tone.Since guitar is very much so a rhythm instrument in bluegrass, this would make them very appropriate strings for the style they claim to cater to.I also think, as Martin claims on the pack, that the playability of the strings is great. They're very easy to depress on the fret. They feel nice. No weird coating or nothing.The only negative I would give them is an unfair one, since these are intended as bluegrass strings: I dont think they're the best for single-note, blues style guitar. Here, the strings sound a little weak, and D'Addarios would probably serve the acoustic blues player better. They dont really have enough focus and volume as single strings and make them come up a little short if one will be playing single note styles outside of bluegrass flatpicking.However, they do bend quite good. I just think the tone is a tad weak for single note blues. Again, they really shine when playing chords.But not all is lost on single note stuff. Bluegrass guitar after all has incorporated lead breaks for over a half a century now, and the strings are well suited for flatpicking and bouncing around the fret board. They have a nice flexibility that allows them to be fretted quite easily. For the bluegrass style, the strings sound fine as single notes.The tone for fingerstyle grew on me. At first I thought it seemed weak. I usually like a lot of bright volume for my finger picking chords. These were at least different in that regard. But then it seemed quite even once again. No higher strings popped too loud and the lows weren't out of place or separate from the rest of the strings.We'll see how long they last. These are first impressions.

Perfection. Greet warm yet balanced, sound depends on the guitar / wood. I am very pleased with their versatility (from vintage mahogany to a modern dreadnaught to even a Jumbo) and longevity is stellar. I have zero complaints! Thanks

Love these strings for the price. Sound good and last a good long time!

Well made guitar strings. Strong, wound strings that sing!

They're exactly what you'd expect coming from the venerable Martin Company. First quality, gorgeous sound.