The innovative Scientific Anglers Amplitude Smooth fly lines feature an ultra-smooth surface that glides silently through the rod guides and shoots like a rocket. For those who couldn't fully embrace the textured Amplitude series due to noise concerns, the new Amplitude Smooth offers a revolutionary alternative – equipped with Scientific Anglers' latest line technologies for noticeably improved performance on the water.
Like all Amplitude fly lines, the Amplitude Smooth series is also equipped with AST+ (Advanced Shooting Technology). This additive is integrated into the line and ensures a smooth surface even after prolonged use. This is achieved through diffusion, meaning the additive can migrate from the inner coating to the surface, continuously maintaining it – similar to how human skin self-lubricates. As a result, we get a line that stays smooth 60% longer and reduces drag by 40% compared to similar lines on the market. Like the textured Amplitude series, Amplitude Smooth lines also feature a Floating Texture tip. This textured section enhances the line tip's buoyancy, making it easy to lift off the water and mend quietly.
Granted, Scientific Anglers charges a premium for this technology – but considering its extended lifespan and the continued benefits of the smooth coating, investing in such an advanced line can be well worth it!
The Amplitude Smooth GT features a short, aggressive taper that is slightly overweighted, allowing modern fly rods to load quickly and enabling fast presentations in hectic situations. The front-loaded taper effortlessly delivers weighted and bulky flies even in strong winds. Another innovation of the Amplitude Smooth GT is the highly contrasting black line end, which helps you estimate the fish's position and distance from structures during long runs deep into the backing – a particularly useful feature near bridge pylons, reef edges, and mangroves. Additionally, the GT fly line has a 65lb braided core and even comes with 100lb braided loops, ensuring it can handle the strongest fish.
Details:
- High-end fly line for tropical fishing targeting GT and similar species
- Short, aggressive, and overweighted taper for fast rod loading and responsive presentations
- High-contrast sighter for long runs into the backing
- AST Plus technology for optimal shooting performance even after extended use
- ID marking on the line for quick identification: SA AMP SMTH TARPON WF XX F (X = line weight)
- Stiff coating and Tropi-Core line core for maximum performance in hot, tropical destinations
- 65lb core and 100lb braided loops for maximum strength
- Color: black / surf / sand (tip)
- Total length: 27.4 m
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Line Properties [Icon meanings]



Line Weight | Head Length | Head Weight | Weight (9.14 m) |
---|---|---|---|
# 11 |
9.9 m | 32.1 g | 24.6 g |
# 12 |
9.9 m | 35.0 g | 29.2 g |
The American manufacturer Scientific Anglers is known for innovative fly lines that are always ahead of their time. This success story started in 1952 with a ground-breaking invention: the first plastic-coated fly line. In the same manner, Scientific Anglers continues to strive for improvement and innovation. The result of this inspiring company philosophy is an impressive range of premium fly lines and accessories. In addition to modern fly lines, this selection also includes shooting heads, running lines and all kinds of leaders. Therefore, Scientific Anglers offers the perfect line for every type of fishing – whether you’re fishing a trout stream or a saltwater flat!