132C is the set of single treble strings for classical guitar from the Rubino series by Aquila Corde Armoniche with normal tension. Thanks to the increased density, this set provides strings with very similar diameters, ensuring promptness and homogeneity of sound, combined with incredible tuning stability at any pitch. Overview of the Rubino series by Aquila Corde Armoniche This is a set of strings with a single degree of tension, with a unique elegance and a sound never heard before. Until now, to reach the lowest frequencies it was necessary to increase the diameter of the string. But doing so proportionally worsens the sound quality due to the acoustic damping within the string. This translates into a duller, darker, and less responsive sound: the thicker the string, the more muffled the sound. Aquila Corde's revolutionary approach (never introduced before) consists of increasing the density of each individual string while leaving the diameters unchanged as much as possible. The result is incredible. The instrument sounds more responsive, clear, powerful, and extraordinarily consistent across all strings and at all fret positions, even those above the 12th fret. The intonation of the pressed string is improved due to the reduced variation between gauges. The RUBINO series guarantees high performance and is suitable for anyone who prefers power and brilliance, but also singability and consistency across the entire fretboard. You've never heard a sound like this before because it simply didn't exist before. Basses: high acoustic performance and low noise under the fingers of the left hand and hypoallergenic, made of varnished red copper. Each Treble string contains different percentages of metal powder, which is why the color between them varies slightly.