Scientific Anglers Amplitude Smooth Trout Expert Fly Line
The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Excels in medium-to-long distances with dry flies and smaller nymphs; wonderful on glass and bamboo
- The best, true-to-grain-weight line for casting small dry flies to picky risers
- Elongated front taper is designed for delicate presentations
- For use in moderate and cold climates
- Braided multifilament core
- SA AMP S TROUT EXPERT WF X F (X = line weight)
| Specification | Value |
|---|---|
| Line Type | Smooth Fly Line |
| Core Material | Braided Multifilament |
| Drag Reduction | Up to five times less drag |
| Durability | Eight times more durable than traditional lines |
| Best For | Casting small dry flies, smaller nymphs, glass and bamboo |
| Climate Suitability | Moderate and cold climates |
| Shooting Performance | Enhanced by AST Plus slickness additive |
FAQ
What makes the Amplitude Smooth Trout Expert line different from other fly lines?
It features the AST Plus slickness additive, providing superior shooting ability and increased durability. With up to five times less drag and eight times the durability of traditional lines, it performs better in medium-to-long casts, especially with small dry flies and nymphs.
Is this line suitable for casting on glass or bamboo rods?
Yes, the Amplitude Smooth Trout Expert line excels on glass and bamboo rods due to its elongated front taper and smooth performance, making it ideal for delicate presentations.
What type of fishing conditions is this line best suited for?
This line is designed for use in moderate and cold climates. It performs well with dry flies and smaller nymphs over medium-to-long distances.


Sonia Underwood –
I’ve used this line for several weeks on cold mornings with small dry flies. The cast is smooth and the line doesn’t tangle easily. It feels lighter and more responsive than my previous fly line. Great for picky risers.
Anna Morgan –
The shooting performance is outstanding. I noticed less drag during long casts, especially when targeting small nymphs. The line holds up well in cold water conditions and doesn’t fray easily.
Emma Oliver –
It’s a solid choice for glass rod fishing. The front taper helps with delicate presentations. A bit more expensive, but the durability and performance justify the cost.
Anthony Bailey –
After switching from a traditional line, I’ve seen a noticeable improvement in my casting accuracy. The AST Plus additive makes it glide smoothly through the air and lands cleanly.
Emma Murray –
Works well with small dry flies and smaller nymphs. The line is durable and doesn’t break easily. I use it in cold weather and it performs consistently.