Enhance your acoustic experience with Cleartone 80/20 Acoustic Strings.
Featuring superior durability and unmatched brightness, these strings offer a vibrant and robust tone, perfect for 
any music style.
Designed for long-term use, enjoy the rich resonance and effortless playability these strings provide.

Cleartone Treated Acoustic 80/20
All Cleartone Acoustic 80/20 Strings are MADE IN USA at our Bountiful Utah factory using only the finest US-sourced 
wrapped wire around a high-carbon hex core.

We wind our strings under super high tensions using proprietary winding methods and core-to-wrap ratios which creates 
a denser, better sounding string with enhanced tuning stability.

Lastly, we add our multi-patented award winning treatment which is scientifically proven to increase your guitar's 
volume and sustain by up to 36% & 48% respectively.

AQUILA RED SERIES GUITALELE 43CM E-E

Vibrating string length: 42-43 cm

A unique look and a strong, consistent sound: but why?

Following the natural laws of physics, in order to reach lower frequencies an increase of diameter of 
the string is needed, but this increase will make the sound quality get worse and worse because of the 
internal dampening of the string. This translates into a duller sound, less brightness and responsiveness, 
following this practical law: the thicker the string, the duller the sound.

Our revolutionary approach never introduced before us  changes the specific weight of each treble string 
in order to compensate this loss of acoustical properties. This way, the diameter variation among each 
string is considerably smaller, allowing the instrument to sound brighter, more powerful and more responsive 
through the entire range of the fretboard, especially over the 12th fret. The strings also keep a better 
intonation thanks to the reduced diameter variations. Until today, this result was reached only with harps, 
where the scale of the strings is continuously varied in order to limit the dampening issue.

The GUILELE/GUITALELE RED SERIES sets provide superior performance over traditional strings, and suits 
all musicians who love clear, sharp sounds and powerful voicing across the full scale of the instrument. 
You never heard a sound like this before, simply because before it did not exist.

These innovative bass strings use copper instead of stiff metals like steel or nickel, resulting in a richer 
acoustic performance due to the higher density of copper. Additionally, the strings feature a bioplastic 
monofilament core called ‘Sugar‘, which has excellent acoustic performance and is produced exclusively by Aquila 
on a global scale.

Revolutionize Your Sound with Our Groundbreaking Wound Bass Strings
These strings are truly innovative for at least two reasons. Firstly, they do not use metals like steel or nickel, 
that are stiff, but instead they use pure copper that is softer and has higher density and result in richer acoustic 
performance. In fact higher the density, better the sound. Secondly, these strings feature a bioplastic 
monofilament core called ‘Sugar‘, which is exclusively produced by Aquila on a global scale. Sugar has been 
proven to have superior acoustic performance compared to other plastic materials, as evidenced by laboratory 
measurements.

4-strings 18-21" / 46-53 cm scale

NOTE	Gauge mm	
A	2,20
D	1,82
G	1,44

This set is characterized by a different construction system than usual, which uses a special aerospace-grade 
multifilament instead of the common nylon multifilament. Varnished copper is used for the coating, which is 
hypoallergenic and less noisy under the fingers.

This set is characterized by a different construction system than usual, which uses a special aerospace-grade 
multifilament instead of the common nylon multifilament. Varnished copper is used for the coating, which 
is hypoallergenic and less noisy under the fingers.

Pure copper replaces stiffer steel, nickel and phosphor bronze: these materials have a lower specific weight 
than natural copper. The higher the specific weight the better the acoustic performance

4 strings 18-21" / 46-53 cm scale

NOTE	Gauge mm
E	2,53
A	2,10
D	1,6
G	1,22

This set is characterized by a different construction system than usual, which uses a special aerospace-grade 
multifilament instead of the common nylon multifilament. Varnished copper is used for the coating, which is 
hypoallergenic and less noisy under the fingers.

This set is characterized by a different construction system than usual, which uses a special aerospace-grade 
multifilament instead of the common nylon multifilament. Varnished copper is used for the coating, which 
is hypoallergenic and less noisy under the fingers.

Pure copper replaces stiffer steel, nickel and phosphor bronze: these materials have a lower specific weight 
than natural copper. The higher the specific weight the better the acoustic performance

4 strings acoustic guitar bass scale 33-34" / 84-86 cm

NOTE	Gauge mm
E	2,44
A	2,03
D	1,55
G	1,20