SUGAR
The sound of these strings is clearly brilliant, clean and prompt, and provide great acoustic power. Unlike Fluorocarbon strings, these strings have an excellent vibrato and a remarkable timbre variation when played very close to the bridge and then up over the sound hole. Laboratory tests showed that Sugar strings have a projection of sound (measured in Joules) and a sustain respectively 24% and 18% more than fluorocarbon strings.
These strings have, in their extremes, the sweetness and singability of gut and the clearness and promptness typical of Fluorocarbon. Another important property is the characteristic sustain, which by scientific measurements is superior to any type of string currently available in the market.
Another measured feature is the sound projection: our scientific tests have shown that it is superior to Fluorocarbon strings. Although the surface is extremely smooth, the grip on the fingers is remarkable; in other words it is never slippery.
In the event of a squeaking sound that appears at the beginning under the right hand fingers, it is suggested to use a hand lotion, or even better a softening paste used to adhere to sheets of paper.
To learn more about sugar strings clik here: https://aquilacorde.com/en/product-category/sugar-spanish-instruments/
RED SERIES
This material gives a unique feeling and a strong, consistent sound. Until recently, it was necessary to increase a string’s gauge to get a lower-pitched note. But increasing the string’s diameter also increases internal dampening. That makes the string less bright, less responsive and more muffled; the thicker the string, the duller the sound. Our revolutionary new approach — unique to us — changes the specific weight of the material, increasing it progressively to leave the gauge almost unchanged.
The result is amazing: instruments sound brighter, more powerful and more responsive through the entire range of the fretboard. The strings also maintain their intonation better, because thicker strings need to be fretted harder, pulling them further out of tune.
To learn more about Red Series link here: https://aquilacorde.com/en/product-category/red-series-spanish-instruments/
NYLGUT
This material was discovered and perfected in our laboratory after a long period of research and after being thoroughly tested, thus giving rise to a new synthetic product of high technology.
Just like gut, the Nylgut® is liable to suffer from cutting edges. Before stringing the instrument do make sure the nut and bridge are free from sharp edges and the nut grooves not too deep and perfectly smooth. You can get rid of sharp edges with very fine grit sandpaper (600, for example) or the finest steelwool (000).
The best sound quality develops when the strings have completely set, which may ordinarily take sometime. To achieve a stable intonation in just a few minutes you can repeatedly pinch each string at midlength with your fingers, pull it decidedly sideways and tune it up again. Stop when the string does not pull out of tune anymore.
To learn more about Nylgut: https://aquilacorde.com/en/product-category/nylgut-spanish-instruments/