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🎶 Elevate your sound with strings that shine as bright as your ambition!
The C.F Martin Guitar Original Acoustic M140 80/20 Bronze Light gauge strings (.012-.054) deliver a bright, rich tonal profile with deep bass and clear trebles. Crafted from high-quality bronze, these durable strings are designed for versatile playing styles and rigorous use, making them a top choice for professional and touring musicians seeking consistent, brilliant sound and trusted Martin craftsmanship.








| ASIN | B0002M6B2M |
| Best Sellers Rank | 832 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 62 in Guitar Strings |
| Body Material Type | Bronze |
| Brand | MARTIN |
| Brand Name | MARTIN |
| Coating Description | Bronze-Beschichtung |
| Coating description | Bronze-Beschichtung |
| Colour | 80/20 Bronze |
| Country of Origin | Mexico |
| Customer Reviews | 4.6 out of 5 stars 2,249 Reviews |
| Finish Type | Bronze Plated |
| Global Trade Identification Number | 00729789101400 |
| Hand Orientation | Ambidextrous |
| Included Components | 6 String |
| Instrument | Acoustic Guitar |
| Item Type Name | Guitar Strings |
| Item Weight | 30 Grams |
| Manufacturer | MARTIN |
| Manufacturer Part Number | M140 |
| Material Type | Bronze |
| Model Name | Martin |
| Model Number | M140 |
| Number of Items | 1 |
| Product Warranty | 1. |
| Recommended Uses For Product | Playing a wide range of music styles on an acoustic guitar |
| Set Name | M140 80/20 Bronze Light |
| Sound Profile | Bright, rich bass tones, clear trebles |
| String Gauge | .012 |
| String Material Type | Bronze |
| String gauge | .012 |
| String material type | Bronze |
| UPC | 633726336391 729789588713 729789101400 000402150662 729789605755 639476856578 644221294161 |
| Unit Count | 1 Count |
P**O
Good quality
I’ve bought again. Good
D**T
Buy them they are great strings
Buy some. I live these strings
M**K
Decent strings.
I bought these instead of the Earthwood 12s I usually buy because they were at a great price on the day... I found them pretty similar. They sounded good. They lasted OK. I might buy them again if the price is right.
W**W
Top strings
Love these strings bright and clean sound great price
D**R
Good strings for the price.
My regular strings for my Simon & Patrick acoustic.
P**B
HUGE BARGAIN
3 sets of superb Martin strings for under £17? Absolutely bargainous!. The 3 sets are not individually wrapped in the package but are correctly ordered and the envelope for each string makes it impossible to go wrong. These strings are made in Mexico, but are excellent quality. Bright, vibrant, responsive, easy to use - I've only had to retune a guitar once since re-stringing - and will last if cared for. Can't recommend enough!
D**D
Acoustic guitar strings
Very good quality
D**Y
Good quality
👍
C**N
Mejor relación calidad / sonido / precio
Por el precio que pagas son mis favoritas. He probado otras más baratas, pero les faltan los graves y la durabilidad de éstas. A mí me resultan la mejor elección, ya que por el precio no duele cambiar todos los meses de cuerdas y así poder tocar siempre con cuerdas frescas. Aunque como digo tienen buenos graves, también tienen buen brillo y están compensadas en frecuencias medias. Si tuviera que ponerles alguna pega sería que quizás sean algo más duras que otras 012, pero no es para nada algo dramático o que impida tocar rápido y cómodo. El empaqueta es bastante bueno, una bolsa plástica al vacío y dentro las cuerdas en sus sobres.
池**希
Good string for reasonable price!
Sounds so good!
S**I
Five Stars
Great strings!
D**D
Excellent strings!
Just as a background, I'm an amateur guitarist, I've only played for about a year, but before that I played piano for a few years when I was 8 or so, and played violin for 6 years, up through 7th grade. (I'm 18 and a graduate now). So while I may not be the go-to guy, for guitar, I have a fairly musical background. I originally bought these strings, just because they were one of the cheapest set I could find on Amazon that were made by a reputable company. I've mainly only used D'addario strings up to this point, but decided to try a different brand on a whim. My main concern with these was the string composition. I had only used Phosphor-bronze strings because I really enjoy a mellow tone. What I had heard of string composition was basically there are: 1) silk-wound strings: which play like classical and are really soft but wear out very fast 2) phosphor bronze: generally heralded as the go-to string for guitarists. Nice mellow sound 3) 80/20 mix (these): with a "brighter" sound Because I have always enjoyed a sweet sounding, mellow tone (like piano) vs a brighter tone, think more like harpsichord, or violin, I was steered away from these strings. But what I found was that these strings teased some of the most beautiful sounds from my cheap, starter guitar. The "bright" element isn't really so much the sharp unpleasant sound I had assumed, but more like a chime on top of the normal range of sounds. After 3 days or so, the sound mellowed out even more, and I think the end result is even smoother than D'addario Phosphor-Bronze. If you play any music with artificial harmonics (think Tommy Emmanuel), my God, these strings sing. The harmonics come out bell-like and have incredible sustain. Also, these strings produce a lot of volume. I switched from D'addario mediums, to Martin lights, and I didn't notice a volume drop. Granted those strings were old, but I think I had only put about a month on them, which is probably the shortest I've gone between string changes. I'm pretty sure these beat out the more expensive D'addario EJ-16 (phosphor bronze, lights) in the volume and clarity category. It might not be fair to compare different string compositions, apples to oranges, but out of the strings I've tried , I like the sound of these best. Finally, perhaps most importantly: playability. These strings are the "softest" metal strings I've played. They're gentle on the finger, and I feel like there is less tension than D'addario. These take a pretty minimal amount of pressure to fret without buzzing. I play mostly fingerstyle, so this is extremely important. So bottom line, these strings have fantastic tone and clarity. If you're a fingerstyle guitarist, then I would definitely get these. I'm still trying out new strings for my guitar, but up to this point, these are my favorites. If you don't want to switch from phosphor bronze to 80/20s in fear of losing that mellow sound, don't be! These strings sound just as mellow after a few days of breaking in. Love these strings! Will buy again.
G**O
Ottime corde ed ottimo rapporto qualità/prezzo
Sono corde durature, dal suono non eccessivamente brillante, ma ben intonato e recche di armonici.
Trustpilot
2 days ago
2 weeks ago