A unique feeling and a strong, consistent sound. Until now, it was necessary to increase 
the gauge of a string for it to produce 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 fret board. The strings also maintain their intonation better, because 
thicker strings need to be fretted harder, pulling them further out of tune.

RED SERIES sets provide superior performance over traditional strings for musicians who love 
bright sounds and powerful performance across the full scale of the instrument.

You never heard a sound like this before, simply because before it did not exist.

AQUILA NEW NYLGUT UK SOPRAN HIGH-G

Our sets are made using innovative materials, 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.

Ukulele String 4th Unwound Low G Tuning 71U.

Syntetic version of the Gut & Silk 900
Up to the middle of the 20th century, the only available strings for guitar were plain gut for trebles 
and silk wound strings for basses: their acoustical performance was quite different from that of modern 
stringings.
The salient characteristics were: a marked tonal presence, a response and brightness typical of gut strings 
(certainly superior to plain nylon and in some respects closer to fluocarbon strings) while, on the other 
hand, basses had an exquisitely vocal quality, i.e. not so bright as, and with less sustain than modern 
wound on nylon strings, with a sound that was richer in fundamental frequencies.

Our Ambra 900 set was developed keeping in mind this historical fact, in order to best re-create, by 
means of modern synthetic materials, the sound of gut and silk-wound basses of that times.

This set was conceived for one grade of tension only, and consists of gut-coloured Supernylgut® trebles, 
with a rectified surface exactly as it’s made on gut strings, adopting the representative mean diameters 
as indicated by Pujol in his method “Escuela Razonada de la Guitarra” of 1934. Basses have a silver-plated 
copper winding over special multifilament core, that we call ‘Rayon’, and are specifically balanced between 
metal and core in order to achieve the same texture of sound found in the original silk-wound strings.