Description
Description
Scientific Anglers Amplitude Smooth Trout is a true-to-weight freshwater floating line designed for dry-fly and light-nymph presentations. The long front taper supports delicate casts to rising fish while maintaining stability at medium and longer distances. Suitable for cold and moderate climates it performs well on glass bamboo and modern graphite rods.
Technologies
- AST+ – Advanced slickness coating that reduces friction improves shootability and maintains slick performance far longer.
- Welded Loops – Durable welded loops on both the front and back of the line for easy reliable loop-to-loop connections to backing and leaders.
- Improved Dry Tip – The improved variant for increased flotation and cleaner drifts.
- SA-ID – Printed line identification system showing taper weight and density for quick recognition.
- Braided Multifilament Core – Supple cold-water core that improves flotation reduces memory and provides smooth stable casting.
Temperature Rating
- Cold / Moderate – 0°C to 25°C
Target Species
- Trout
- Yellowfish
Types of Flies
- Dries
- Nymphs
Additional Features
- True-to-weight taper supports classic and modern rod actions
- Extended front taper provides finesse for small dry flies
- Well suited for technical water with selective rising fish
- Reliable performance in both moving and stillwater environments
Line Chart
| Line Weight | Head Length | Total Length | Head Weight | Grain Weight* |
|---|---|---|---|---|
| WF-2-F | 19.5 m | 27.4 m | 170 gr | 80 gr / 5.2 g |
| WF-3-F | 19.5 m | 27.4 m | 200 gr | 100 gr / 6.5 g |
| WF-4-F | 20.1 m | 27.4 m | 240 gr | 120 gr / 7.8 g |
| WF-5-F | 20.7 m | 27.4 m | 290 gr | 145 gr / 9.4 g |
| WF-6-F | 21.3 m | 27.4 m | 340 gr | 160 gr / 10.4 g |
| WF-7-F | 21.9 m | 27.4 m | 405 gr | 185 gr / 12.0 g |
*Grain weight measured at first 9.1 m.
Amplitude Smooth Line Features
Scientific Anglers took their revolutionary AST Plus slickness additive and put it into the Amplitude Smooth Series. These lines are smooth like traditional lines, but have increased durability and slickness due to the AST Plus, which is mixed directly into the coatings.
Each line is built with three colours to identify the separate parts of the line, and welded loops for quick and easy rigging.

