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Martin SP Lifespan Phosphor Bronze Treated Acoustic Guitar Strings

(10 Reviews)
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$10.95List Price $25.95

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Item Description

These new Martin SP Lifespan Phosphor Bronze Coated Acoustic Guitar Strings are treated to preserve the SP tone and feel for the life of the string.

"All Martin SP sets use premium metals with high tensile strength to stand up to demanding performances. SP core wires and plain strings are electro-plated to resist corrosion and deliver sustained playability." -

Martin SP Lifespan Phosphor Bronze Coated Acoustic Guitar Strings offer a bright, rich, and warm tone. Top artists use this 92/8 composition for live performances and studio recording due to its consistent, slightly warmer tone out of the box.

The high tensile strength carbon steel round core wire creates increased durability, keeping your guitar in tune and in tone longer.The proprietary Cleartone treatment on all six strings protects from dirt and oils, delivering the longest possible life for these SP strings.

Extra Light 10-14-23-30-39-47
MSP7050 Custom Light 11-15-23-32-42-52
MSP7100 Light 12-16-25-32-42-54
MSP7200 Medium 13-17-26-35-45-56
MSP7700 Baritone 14-20-30-42-54-70 - (+$3.00)
MSP7600 12-String Extra Light 10-14-23-30-39-47-10-14-10-12-18-27 - (+$4.00)
MSP7750 12-String Baritone 12-13-18w-18w-26-11-34-16-47-23w-70-34 - (+$7.00) "Pete Seeger Custom 12"

Martin & Co. designs and manufactures the strings themselves. Like their guitars, each string is made with patience, care, and precision with only the highest quality materials producing strings with exacting tone and superior performance. Not only are their packaging materials minimized and 100% recyclable, but the envelopes reduce the tarnishing effect on the strings.

Not what your are looking for? Check out our full line of Martin Strings!


Overall Rating for Martin SP Lifespan Phosphor Bronze Treated Acoustic Guitar Strings
(based on 10 reviews)
Martin SP Lifespan Phosphor Bronze Treated Acoustic Guitar Strings
4.5 Stars based on 10 Review(s)
Morgantown, WV
5 Stars
I would recommend this item to a friend.

Finally a Perfect Balance of Tone
June 29, 2014
I've been experimenting with different strings on my Martin for a couple months. I love the feel and projection of Elixirs, but find them too bright on my Martin. Especially when plugged in, it completely changes the warm, Martin tone into a wanna be Taylor tone. I loved the warmth of D'addario EXP's, but found the tone to die off very quickly and become too muddy. These Lifespans are the perfect blend of both. They feel great and are smooth on your fingers and have a very warm tone, but also have a nice brightness that itsn't overpowering. These strings give my Martin a growling bass with crisp highs. Awesome tone. After a couple weeks of continuous play they still have their new string tone and you can't see any dirt or grime build up. It's easy to say that I have found my strings and will no longer try anything different.
-Fair price -Balanced tone -Ease of play -Retains new string tone over time
-Packaging of the strings

Yuma, AZ
4 Stars
I would recommend this item to a friend.

solid strings
June 28, 2014
For most folks who play phosphor bronze strings, you'll likely land in either this camp, or the Elixir one. The tone and feel of these is much more like what you'd expect from a standard, non-coated string, but with that Martin flavor. That said, I'm more of an 80/20 guy, and the Martin Lifespan 80/20s are my current favorites for their deeper, woodier tone. For phosphor bronze, I still prefer the sound of Elixirs because they squeak significantly less, and they do last a long time, but many won't like that slippery feel, and for those folks, these Martins would be a great choice! Also, it's worth noting that I also prefer the 54 low e Martin uses vs the 53 Elixir uses.

Asker , Norway
5 Stars
I would recommend this item to a friend.

Good sound
April 23, 2014
these strings are the best sounding acoustic strings i have tried. I makes my guitar sound much better and they keep the good sound for quite a while. They are also durable.
Really good sound Durable

Farmington, NY
5 Stars
I would recommend this item to a friend.

Medium strings
April 6, 2014
I have been using these strings since 2011 when visiting the Martin factory These strings were put on my guitar during a string change. I have used these strings exclusively since. I had used some other brands of strings looking for the tone I wanted from my guitar. I have been pleased to no end with these strings.
Last a long time I love the tone

David J.
Grand Prairie, Texas
5 Stars
I would recommend this item to a friend.

Excellent strings
February 28, 2014
I use these strings on my 1979 Yamaha FG-365S acoustic guitar. Excellant tone and lots of sustain. They are the best strings I have found for this guitar.
Tone and Sustain.

Woodbridge, ON
5 Stars
I would recommend this item to a friend.

Best sounding strings
January 21, 2014
Martin Lifespand are my favorite strings for my Marting guitar. Tone stays fresh longer than any others stings I have used. Highly Recommended !!!
Tone quality Long lasting Good price point

Joshua Schuetz
5 Stars

SP Lifespan Phosphor Bronze Coated Strings
December 28, 2011
I've purchased five sets of these now for my Martin SWD and I can not recommend these. Initially they are a bit 'brighter' than the SP Marquis Phosphor Bronze that I have been using, but the Lifespan's bass strings do not have the warmth and resonance of the SP Marquis. And the brightness and force of the Lifespans fade quickly as does the string luster. I actually feel that the old SP+ held up longer than the Lifespans, but overall, coated strings do not give you the balance and warmth that the Martin Guitars are noted for. I've tried even major string maker over the past 40 years of playing and the Martin SP's are the best buy for the money; the SP Marquis are my favorite and beat all the rest for the money; you can get three sets for the price of a coated string and they mellow out with nicely as they age. Stay with the SP Marquis and skip the coated strings.

Dennis Calas
5 Stars

Martin SP Lifespan
December 6, 2011
As coated strings go... these are the best I have tried. I cannot tell they are coated. Very clear tones. They made me fall in love, again, with my 00-28 Martin. Purchased last week, so the longevity is TBD. Defiinitely bettter than the D'Addario 'extended life' and Elixer Nanoweb strings.

3 Stars

Good but not great
September 21, 2010
If you don't like the feel of other coated strings, but you want the longevity of coated strings-then these are for you. These strings do not feel slick like other coated strings, and they sound warm to me as opposed to overly bright. To me, they're good but not great-I think I will stick with Elixir Phosphors as they sound better to me.

Jay Lowe
4 Stars

Lifespan PB lights
September 18, 2010
I've always been a fan of standard SP's but not so much the SP+'s. They didn't have a smooth feel to me. Thankfully the Lifespan's are a big improvement there. They look and sound like standard SP's but feel very smooth. Since I've only used them for a couple of weeks I can't speak to longevity yet but so far I'd put them in the win column.

Martin SP Lifespan Phosphor Bronze Treated Acoustic Guitar Strings

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