Martin MFX130 Flexible Core Silk & Phosphor Custom Light Acoustic Strings

.011-.047, Custom Light, Silk & Phosphor, Flexible Core SP Guitar Strings
Martin MFX130 Flexible Core Silk & Phosphor Custom Light Acoustic Strings image 1
Martin MFX130 Flexible Core Silk & Phosphor Custom Light Acoustic Strings image 1
Sweetwater Savings: $10.46 MSRP: $15.75

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Buy 1 - 2 $5.29
Buy 3 - 5 $4.99 Save 5%
Buy 6 - 11 $4.69 Save 11%
Buy 12+ $4.29 Save 18%
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Martin MFX130 Flexible Core Silk & Phosphor Custom Light Acoustic Strings
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Premium Strings from Martin!

C. F. Martin & Co. designs their strings the way they design their guitars - for maximum performance, exacting tone, and playability. Sweetwater knows you want strings that will perform on stage or in the studio - or wherever your music takes you. Martin strings are designed to give you excellent tone, clarity, and response. Martin strings are ideal live, in the studio, or wherever maximum string life and a clear, rich and exciting tone is an absolute must. Martin strings will take you wherever your music goes.

Martin Acoustic FX strings utilize an advanced thin wire core wire to increase flexibility and improve sustain without sacrificing tone, durability or playability.

Martin MFX130 Silk & PhosphorAcoustic Guitar Strings Features at a Glance:
  • Custom gauge
  • .011, .013, .023, .028, .038, .047
  • Silk & Phosphor
Give your acoustic guitar a sonic advantage, with Martin strings!

Tech Specs

Guitar Type Acoustic guitar
Number of Sets 1
Coated No
Gauges .011, .013, .023, .028, .038, .047
Core Material Steel
Winding Material Silk & Phosphor
Winding Type Round
Manufacturer Part Number 41MFX130

Customer Reviews

Based on 9 reviews
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Ditto what they said

So look, I'm providing a novice's perspective. Mostly I've been studying electric guitar for the past year, and six months ago I also purchased an Epiphone EL-00 parlor model acoustic guitar. It came with a 12-gauge string set, and my hands revolted painfully to the stress and strain of almost daily practice. Finally, I had the guitar properly set-up with a set of D'Addario 10-gauge phosphor bronze coated strings recommended by my guitar tech. Honestly, I can't say my practice time much improved, never exceeding 20 minutes before my fretting hand began to ache and where I knew I'd be sidelined due to injury if I weren't careful. Like I said, I'm a guitar newbie, my preferred instrument is electric, and oh, I'm a new musician at 66 years of age. A few days ago I switched to a set of Martin silk & phosphor 11-47 custom strings, and WOW! They feel great and my dexterity on the fretboard is improved over that with higher tension strings. I think my guitar likes these strings too, because there's no discernible drop in volume and the tone sounds even more balanced than before. So if you're feeling old, challenged and in the way like I was, I recommend these strings to put some spring in your step.
Music background: Novice

Martin fx silk strings

I've tried a number of different strings Elixer nano web and Martin FX in custom light. The Martin FX Silk & Phosphor custom light give me a soft feel without loosing tone or quality of sound. While I will continue to use FX custom light strings on my D-18, I will use the FX silk & phosphor strings on my everyday guitar. They make playing more enjoyable!
Music background: Church musician, couch player

My Absolute Favorite

I've tried a number of different brands looking for quality tone with a soft touch and I haven't been satisfied with any of them until I tried these wonderful Silk & Phosphor Custom lights. Easy on the hands, with good tone and volume. I recommend them to all my friends!
Music background: Hobbyist

My new strings of choice

I've only had them on my guitar for a week, but I love them. I am more of an electric guitar player and hate having to get my hands used to playing an acoustic guitar. My acoustic guitar is always next to me, and it sees more action now that I have these strings. I feel like the sound is more clear as well. I think I finally found acoustic strings that I like!
Music background: 18 years of playing guitar

Great feel and tone for a silk string

I had used other FX Martin strings and was very pleased with them. I decided to try these looking for a string that was easier on my old aching fingers. I was extremely pleased with these strings. The tone and volume was very good for a silk string. I would highly recommend these to anyone looking for a silk string. I would also say the Sweetwater service is second to none.
Music background: Longtime player of 60s style folk music
See also: Acoustic Strings, Martin, Martin Acoustic Guitar Strings