Introducing the Aquila SUPER NYLGUT strings, the ultimate improved version of their world famous Nylgut & New Nylgut.
SUPER NYLGUT strings feature a natural pearl color and a very smooth surface to the touch that make it almost like wax.
The main advantages of the SUPER NYLGUT strings is their ability to achieve the required pitch and stability IN A FEW SECONDS with an acoustic output even more focused and penetrating. - Aquila Strings
That's a description from Aquila we've been using and after a few years with them I can agree, minus the stability within a few seconds. It still takes some time but they are more stable and focused. They're used on most Kala models now and on Kanile'a for the last few years among many others. They are what you hear on many of our sound samples here. The Super have more mid range than the regular Nylgut Aquila, and they do have a nice smooth feel. A very popular string and for good reason.