Thomastik AC113 13-61 Medium Gauge Plectrum Acoustic Strings

Thomastik-Infeld AC113 Plectrum Acoustic Guitar Strings – 13–61 Medium

Thomastik-Infeld Plectrum AC113 strings deliver a powerful yet refined acoustic voice with the series’ signature low, balanced tension feel. Featuring Thomastik’s unique hybrid construction, the A, D, and G strings are flatwound, paired with a roundwound low E and plain steel trebles. Silk inlays at the ball end help regulate overtones and enhance tonal balance.

The Medium 13–61 gauge provides a strong, piano-like low end and impressive projection, while Thomastik’s carefully engineered tension profile keeps the feel smoother and more responsive than many traditional medium sets. The result is a warm, focused, almost classical-inspired tone with clear articulation and controlled sustain.

Well suited for confident flatpicking, dynamic strumming, and players who want depth and authority without excessive stiffness. The balanced, lower-tension design can also be a thoughtful option for certain older or lightly braced instruments.

Gauges: .013, .017, .026 (flat), .033 (flat), .044 (flat), .061
Construction: Hybrid (Flatwound A–D–G, Roundwound Low E)
Special Feature: Silk inlays for overtone balance
Tone Profile: Full, warm, focused
Feel: Strong output with balanced, refined tension
Made in Austria

A distinctive medium gauge set offering depth, clarity, and a uniquely sophisticated acoustic character.