Scientific Anglers Amplitude Smooth Titan GT Fly Line
The first series of lines to feature the revolutionary AST PLUS slickness additive, Amplitude will shoot farther and last longer than any other line on the market. It’s slickness down to a science.
You’ve traveled half way around the world in pursuit of a fish that will test every single piece of your gear, you shouldn’t have to worry about your fly line failing. With our 65lb. Tropical-core design these lines are designed to perform when it counts.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- High-contrast sighter to identify the back of the line when fighting fish on long runs
- Built one size heavy to load quickly and deliver the biggest flies to the furthest targets
- Specially designed for tropical conditions
| Specification | Value |
|---|---|
| Weight | 65 lb |
| Core Type | Tropical-core |
| Special Feature | AST PLUS slickness additive |
| Sighter | High-contrast |
FAQ
What makes the AST PLUS slickness additive different from other fly line additives?
The AST PLUS additive is specifically engineered to improve shooting distance and durability, providing a more consistent and reliable performance under demanding fishing conditions.
Is this line suitable for use in tropical environments?
Yes, the line is specially designed for tropical conditions and is built to withstand heat and humidity while maintaining performance.
How does the high-contrast sighter help during fishing?
The high-contrast sighter allows anglers to easily identify the back of the line when fighting fish on long runs, improving control and reducing the risk of losing the line.


Kevin Young –
This fly line performs exceptionally well in warm weather. The AST PLUS additive gives it a smooth cast and it holds up well after repeated use. The high-contrast sighter helps me track the line during long fights with large fish.
Nicola Wilson –
I’ve used this line in both coastal and inland tropical areas. It casts farther than my previous model and feels more durable. The loading is quick and the line doesn’t fray easily.
Audrey Alsop –
The smoothness of the cast is noticeable right away. Even on windy days, it stays stable. I’ve used it for several weeks now and it still looks and performs like new.
Victoria Cornish –
Great for long-range casting. The sighter is very helpful when fighting fish in deep water. I didn’t have any issues with line breakage or wear during extended use.