The Aquila 37C is the normal tension set in the Perla line, which pairs Aquila's Bionylon trebles with Perla silver-plated copper basses. Bionylon is a nylon made largely from plant-derived raw materials rather than petroleum, with a sound and feel very close to conventional clear nylon: clear, balanced, and familiar. The Perla basses are designed to match, giving an even, well-rounded set that works on any classical guitar.
Aquila is a family-run string maker in Vicenza, Italy, best known for inventing Nylgut, a synthetic material that reproduces the density, feel, and sound of real gut strings without gut's cost, fragility, or sensitivity to humidity. The Perla line is Aquila's answer for players who want a conventional nylon sound from a more sustainable material; the 38C is the high tension version.
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