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GHS Acoustic Guitar Bright Bronze 80/20 Medium 6 Strings, .013 - .056, BB40M

GHS Acoustic Guitar Bright Bronze 80/20 Medium 6 Strings, .013 - .056, BB40M
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6 Reviews
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17% Recommend this product (1 of 6 responses)
By Chuck
Akron, Ohio
Great sounding strings, great price, great people to deal with.
October 14, 2021
I recently switched from another brand of strings that I had used for years to GHS Bright Bronze 80/20’s and was pleasantly surprised at the resonance I got from them. I have used the service of JUST STRINGS in the past and the value and service that I received is always outstanding. Would highly recommend this product along with this company for anyone searching for a great acoustic sound and excellent service.
By Jono
GHS among the best...
June 18, 2017
There are so many subjective variables when it comes to reviewing strings, that it won't help any of you for me to simply say these are "THE BEST", or you'll "LOVE THEM." All I can tell you is this:

I date every package of strings I put on my guitar, and leave the empty package in my bag. With these GHS strings, I keep thinking I must have made a mistake with the date ... but I didn't.

On September 22, 2016 - I put a pair of these exact strings on my Seagull Entourage Rustic CW guitar. It is now June 18, 2017, and I am finally prepared to change them. Why? I'm not sure. Other than I am anxious to try the GHS "lights" I bought at the same time.

I play and practice for a 1/2 hour to an hour, about 4-5 times a week (I don't play out) AND, These GHS strings still sound pleasantly bright, articulated, and powerful; they still stay in tune better than almost every other brand of string I've used (HUGE plus for me); they still have not rusted; and they still feel fresh to my fingers. This is remarkable! I don't recall any other brand of strings behaving like this - even those costing $15 or more.

I will continue buying and experimenting with other strings - because it's important to explore - HOWEVER, GHS has now become my GO-TO brand. Given their long-lasting tonality, strength, tuning retention, and low cost... these GHS strings represent the BEST VALUE vs. all the other strings I have used over the past 10 years. I hope this helps. Thanks. Jono
By DocDick
GHS 80/20 Bright Bronze Med gauge guitar strings
June 13, 2011
I have a '91 Webber mahogany Dreadnought that really came to life when I tried this GHS product. I have used other GHS and D'Addario strings but this guitar jumped a notch on the bass side and high mid range with this set. I'm trying Med GHS Phosphor bronze mediums on my '61 D-28 Martin - they seem to have a sweeter tone than comparable D'Addario strings.
By kamlapati
Love GHS Strings
November 15, 2010
GHS strings are my go-to brand because of the wide variety of types available, the consistent quality, and the clear explanations of the qualities of each type of string. Check out the "brightness spectrum" printed on each box of acoustic strings, it's really useful. It allows you to purchase the string type that optimizes each acoustic guitar.

I use the Bright Bronze mediums for my dreadnought and for my big body carved top acoustic archtops.
By Kelly c.
GHS BB40M guitar strings
August 23, 2010
I am old enough to have purchased a 1948 Martin D-18 thirty years ago. I like the clangy bangy sound of the D-18 and these strings get that sound. I had been playing D'Addarios, but have noticed a better balance with the GHS strings. They still provide a lot of bass, but it is focused and not boomy.
By kentuckywillie
highway 57 bluegrass band
February 1, 2010
I play guitar (Martin d28) and mandolin (Weber Yellowstone deluxe). I use BB40M on guitar and A270 on mandolin -- best strings out there!!!!






1st E

Plain Steel



2nd B

Plain Steel



3rd G

80/20 Brass Alloy Roundwound



4th D

80/20 Brass Alloy Roundwound



5th A

80/20 Brass Alloy Roundwound



6th E

80/20 Brass Alloy Roundwound




"New and improved GHS BRIGHT BRONZE acoustic guitar strings boast a specially tempered 80/20 copper-zinc alloy wound over a hex core to deliver an extra-bright tone. The redesigned core-to-cover ratio gives increased brightness and flexibility."

GHS Strings


"GHS Corporation is one of the world's leading manufacturers of high quality strings for fretted instruments. GHS produces strings for electric, acoustic and classic guitar, electric bass, banjo, mandolin, and a wide array of specialty and ethnic instruments. From Battle Creek, Michigan, USA (where GHS was founded in 1964), fresh-from-the-factory strings and music products are delivered direct to retail stores in the USA and to distributors in over 70 countries around the world.

With over 200 standard sets and 700 single strings, GHS has a set that is right for you.

String Design

The string specialists at GHS bring a craftsman-like approach to each aspect of string design. From material selection to such intricate factors as core-to-cover ratio, winding direction, wire tension and alteration of the wire, GHS designs state-of-the-art strings that enhance the sound quality of all playing styles and instruments. And with ongoing research, GHS develops string innovations that anticipate music trends and instrument modifications worldwide.

String Manufacturing

To build a quality product, state-of-the-art equipment is a necessity. At GHS, all strings are made on machinery designed and built in-house. The GHS design engineers utilize the latest technology to develop computer controlled string making machines that monitor such intricate parameters as the number and type of twists on the ball end, winding speed and direction, core and cover wire tension, cover wire angle and wind length. Modern quality control methods ensure that the final product meets GHS's rigid specifications.

Factory Fresh

GHS knows that you want your strings to be as fresh as the day they were made. All GHS facilities are environmentally regulated to control temperatures and humidity. Sensitive raw materials and bulk products are further wrapped in protective bags for storage. Coiled strings are placed in string packets that, in independent laboratory tests, have proven to offer the optimum protection from humidity. Finally, the GHS swift order shipment (usually within 24 hours of order placement) guarantees that GHS strings arrive in your retail store factory-fresh.

How String Material Affects Tone and Feel

The hardness of common materials used in the cover wire of strings affects both the tone and "feel" of a string. Usually, with all else remaining constant, the harder the material the brighter the string. This relationship shows why stainless steel produces a very bright sound and nickel, a softer material, produces a warmer sound. However, a hard material can be abrasive to both fingers and frets. At GHS, our unique "Alloy 52", used in Progressives and White Bronze strings, is softer and less abrasive than a stainless steel but produces a tone almost as bright. Common cover wire materials include (ranked by order of brightness) stainless steel, Alloy 52, nickel plated steel, pure nickel, and for acoustics, brass and bronze.

The core wire for all strings and all plain steel strings (both acoustic and electric) are made from tin plated Swedish steel."



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