Thomastik AC111

Soundwise they are full and harmonically rich with a mellow treble, lending to clear melodies, singing harmonics and full sounding chords. Overall a very warm sound.

The flatwounds feel very smooth compared to the roundwound bottom string. Bends feel smooth. Very nice feeling strings.

The only thing that keeps them from being perfect is their quality. I have broken a couple of strings at the tuning peg because the windings do not reach all the way to it. They do last for a very long time, as long as you keep them clean. They are comparable to elixirs and d'addarios (NYXL, on my electrics).

TL:DR; Excellent strings, especially if you do not like the harsh treble of steel strings.

I'm using these on my Takamine TF. I've always liked the idea of flat strings on acoustic guitar. I knew Thomastik is a very good company, so I decided to try AC111. I have to say that these strings are kind of peculiar. I don't think they're the best for everybody. But they're exactly what I wanted.

The low E is the only roundwound string in the set, which can seem a little odd as a choice. But it's not the usual acoustic roundwound, it has a deep sound. If you ever played flatwounds strings you notice how the E string is always dry -almost percussive-. So I think they decided to include a roundwound low E in order to keep sustain even in the low register. And it works, because it's not a normal roundwound string. It sounds like an halfround, but just better. The A, D and G strings are very thin flats. The playability of these three strings reaches the best I've ever experienced, not only because they're thin but also because they are soft as silk. You can run fast as if you're playing electric, but the sound is still rich. My main fear, before I could try these, was somehow a timbre jump between the flat A, D and G and the round E. If you, like me, have this kind of doubt, don't worry about that. You can hear the difference, of course, but it's less than you probably think. The B and the E strings are normal gauge, very comfortable, and great sound.

The main thing about these strings is the sound. They sound really great, and I think they'll be my regular acoustic guitar string set. The playability is also a good factor, but in my opinion is nothing compared to the sound. I think these strings are very underrated. Everyone thinks at TIs as luxury brand, but nowadays Thomann allows us to buy them for few euros. Or, anyway not more than popular brands.

The musical habitat for these strings is folk or soft rock. I like them to play Bert Janschish things, early Paul Simon maybe.