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• Proprietary Superalloy wrap wire delivers bright, cutting tone with measurably higher output than standard strings
• Higher gain equals better signal-to-noise ratio — ideal for heavy pedalboards and long cable runs
• Reputed as one of the loudest electric strings ever made; artisan-crafted in Vienna for long tonal life

The Thomastik-Infeld IN109 is the light-gauge set from the Infeld electric line, built around Thomastik's proprietary Superalloy wrap wire. Where most electric strings prioritize either brightness or output, the Superalloy formulation delivers both — a bright, cutting tone with measurably more power than conventional nickel or nickel-plated wraps. That extra output translates directly into a stronger signal-to-noise ratio, which is why the IN109 has earned a longstanding following among pedal-heavy players, downtuners, and stage performers running long cable paths where signal dropoff is a real concern.

The plain E, B, and G are steel; the wound D, A, and low E are Superalloy roundwound over a steel core. Tonally, the set reads bright and articulate with strong pick attack and clear note separation, holding tuning and tonal life well under nightly practice and performance. Made in Vienna to Thomastik-Infeld's century-old standards, the IN109 is a strong choice for players who want maximum cut and output from a light-gauge electric set.

• Brand: Thomastik-Infeld
• Model: IN109
• Series: Infeld Superalloy
• Instrument: Electric Guitar
• Gauge: Light (.009 .011 .016 .024 .032 .042)
• Plain Strings: Steel (E, B, G)
• Wound Strings: Superalloy roundwound (D, A, Low E)
• Core: Steel
• Winding: Round wound
• Coating: Uncoated
• Ball End: Yes
• Country of Origin: Austria