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Thomastik-Infeld Classic S Rope Core Flat wound Acoustic Strings - Silver/Nickel .010-.038

.010-.038 Flatwound Acoustic Guitar Strings

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Item ID: KF110

Thomastik-Infeld Classic S Rope Core Flat wound Acoustic Strings - Silver/Nickel .010-.038

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Thomastik-Infeld Classic S Rope Core Flat wound Acoustic Strings - Silver/Nickel .010-.038

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Q: What makes Thomastik-Infeld Classic S strings different from standard classical guitar strings?

Thomastik-Infeld Classic S strings are unique acoustic guitar strings. They feature a steel core and are flatwound, meaning the winding is smooth, which differs significantly from the roundwound construction of most steel acoustic strings. This design results in a warm, mellow tone with reduced finger noise. While traditional classical guitar strings are typically nylon, these Classic S strings offer a distinct steel-string alternative for acoustic guitars, providing a different feel and sound profile.

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Q: What kind of sound can I expect from these Classic S flatwound strings?

Thomastik-Infeld Classic S strings deliver a warm, rich, and mellow tone with excellent sustain. The flatwound design significantly reduces finger squeak, making them ideal for recording or players who prefer a very smooth feel. They are perfect for classical, jazz, or fingerstyle players seeking a unique, articulate sound with a distinct warmth and less brightness than typical roundwound steel acoustic strings.

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Q: Are these strings suitable for all classical guitars, and what is their tension?

No, these Thomastik-Infeld Classic S strings are specifically designed for acoustic guitars, not classical guitars. Using steel strings on a classical guitar can cause serious damage. They feature gauges from .010 to .038, which typically provides a comfortable light-to-medium tension for acoustic guitarists, balancing playability with projection.

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An Ideal String-steel Alternative

Thomastik-Infeld Classic S Rope Core flatwounds are top-shelf acoustic guitar strings. You get a plain-steel, brass-plated high E, a stainless steel B and G that are flatwound on a steel core, and a nickel D, A, and low E that are flatwound on a steel core. The guitarists here at Sweetwater have found Classic S Rope Core flatwounds to be an ideal alternative for concert, fingerstyle, and folk guitarists who prefer steel acoustic guitar strings. If you want to coax the best sound possible out of your acoustic guitar, give Thomastik-Infeld Classic S Rope Core strings a try — you won’t be disappointed.

Thomastik-Infeld Classic S Rope Core Acoustic Guitar Strings Features:

An ideal alternative for concert, fingerstyle, and folk guitarists who prefer steel strings
Plain-steel, brass-plated high E
Stainless steel B and G flatwound on a steel core
Nickel D, A, and low E flatwound on a steel core
.010, .014, .018, .024, .031, .038

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What Are Guitar Strings Made Of?

Aug 24, 2020

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Tech Specs

Guitar Type: Classical Guitar
Number of Strings: 6
Gauges: .010, .014, .018, .024, .031, .038
Tension: Normal
Core Material: Steel
Winding Material: Brass, Stainless Steel, Nickel, Silver-plated Copper, Nylon
Winding Type: Flatwound
Manufacturer Part Number: KF110

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Reviews

4.5

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These strings are amazing and exactly what I was looking for and hoping for. I play multiple instruments but violin is one of my main instruments. I use Thomastik-Infeld strings on my violin. As a song-writer, I enjoy playing guitar, but my guitar playing style is fingerpicking and I love the sound of sliding the note up and down the neck of the guitar the way you can do on a violin when shifting. However, the typical wound guitar strings have that awful screech when sliding and also cause my fingers to get rough skin which then makes my violin sound screechy when I play it right after playing guitar. These strings feel just like violin strings. They don't rough up my fingers. They don't screech when I slide up and down the neck. And they sound and feel amazing for my fingerpicking style. So very very thankful to have found these strings.

In order for the main part of the review to make sense, I need to provide some context. I have a Martin D-28 that I love, but can't play because of arthritis. (I've been playing electric with low action and light strings.) I've had the guitar worked on by three different technicians in the hope of bringing the action down (including a neck reset), but nothing really worked. So I ordered these strings (flatwound 10s) in the forlorn hope that they might help a little.

I just put them on the D-28 and am amazed at the result. All of a sudden, I can fingerpick all the way up the neck again. In terms of playability, the strings are an amazing benefit, to the extent that I can play this guitar for the first time in 15 years. I assumed that there would be a corresponding and inversely proportionate degradation of tone, but that didn't happen -- the guitar still sounds amazing: strumming, fingerpicking or bluegrass flatpicking. In short, it sounds like a D-28, a loud one.

At over $ per set, the issue of value for cost has to be a consideration. I'm not rich, but, for me, these strings are worth every penny. In fact, the reason that I'm on Sweetwater writing this review is that I just ordered three more sets.

Thanks to Tomastik-Infeld -- these strings are incredible and I'm very grateful.

These strings are awesome. Ive never had flat wound strings for an acoustic guitar. These strings are easier to play than my classical nylon strings. They play themselves

These are the best acoustic guitar strings I've ever played, since they suit the soft jazz style and sound I strive for with an acoustic. They have a silky smooth feel and responsiveness that keeps me playing longer sessions. They are not bright and that's fine; I'd rather have a mellow tone anyway. And for TI strings these come at a great price.

Thomastik-Infeld strings run on the high side in terms of price, but IMHO their high quality and tone justifies the cost. I started using these flat wound strings during jazz sessions, but realized they were great in the context of other genres as well. The reason I say this is because they impart a "focused" sound while minimizing string noise. This is really helpful during recording, especially if you want a clear bell-like tone for lead or harmony. They aren't the strings I'd necessarily use if I want a raunchier sound, but in most other situations, they sound great.