Pirastro is an important manufacturer of bowed instrument strings. It's a German familiy-run business with Italian roots looking back on more than 200 years. Though one of the best references in violin strings, their CG portfolio is quite limited, Pirazzi Modern Classics, Studio Classics and Sarabande. The later being a gut & silk set well above 100€.
Studio Classics are available with silver and bronce wound, polished basses and Nycor e1, b2 and a Nycor/Special g3 trebles with always identical gauges for g3 and b2. They are available in three tensions with diameters of 0.68/0.80/0.80 mm (NT) - 0.71/0.83/0.83 mm (HT) - 0.74/0.86/0.86 mm (EHT). Tension data are not available.
Though Carbon g3 proved to be the best compromise in my case for tone & tuning stability, their lowest standard gauge of 0.84 mm always sounded a tad too tight and 0.78 mm Seaguar unfortunatelly didn't work at all. So it was actually the 0.80 mm Nycor/Special g3 which attracted my attention and made me hope to find Carbon advantages with less tight resp. more open sound.
Expecting a monofiliament g3 like Carbon or Nylgut I was surprised to receive a perfect round multifiliament string with a hard, natural and smooth coating, which reminded a bit of the coffee colored d'Addarion Zylex string. Stiffer than usual it exhibted less stretching in the tuning up phase and stabilzed almost completely after two days. The tension was as expected like NT/MT Nylon but with a more focused tone, one dicipline where the 0.78 mm Seaguar failed explicitely.
The tone is round and warm with harmonic contet similar to a good Nylon e1, e.g. DM 100p. Warmer than Knobloch's Carbon g3 and less dominant than usual. Flawless intonation, fast response with inaudible transient oscillation and impressive dynamics after my right got used to its possibilities. Last but not least the match with a well matured Pyramid Sterling Silver d4 is beautiful!
IMHO a candidate for a top raking of the best g3 alternative with only one downside, the price. AFAIK it's the only g3 in the world, which is the most expensive string of the set. 7.50 € equals almost 1.5 Augustin sets or 1 EJ45 set which makes a general recommendation difficult provided a much cheaper Nylon or Carbon g3 does the job well already!?!
Later I retrofitted the Nycor e1 and b2, which turned out to be rectified/ground strings but with less texture than usual, perfectly round/gauged and melting behaviour similar to Nylon, though the strings appear stiffer in general. Intonation stabilized slower than the Nycor/Special g3 but comparatively fast compared to regular Nylon. Irrespective of the vagueness of tension rating they are by no means normal tension! They are definitely low tension and feel like Savarez 520 B or EJ29. So it actually took some days to adjust my right hand's technique but now after we got used to each other they appear very balanced, full bodied, with a similar good response as the Nycor/Special g3, impressive dynamics and a pitch stability which is superior to "normal" Nylon strings. They are exceptionally easy to play and it's unbelievable how responsive my guitar reacts under these strings.
Based on this experience I may try their HT trebles perhaps someday which I would expect more like average NT. But for the time being Pirazzi Nycor NT trebles with Pyramid Sterling Silver NT basses are a dream combination on my Kohno guitar!