Scientific Anglers Amplitude Smooth Infinity Warm
The Amplitude Smooth series of lines represents the highest-performance smooth fly lines available. With up to five times less drag and eight times the durability of traditional lines, this fly line redefines performance in the water.
Contrary to conventional wisdom, there is no need for a separate line for every situation. The Amplitude Smooth Infinity Warm is designed to handle both aggressive streamer presentations and delicate dry fly casts. It mends exceptionally well and consistently delivers flies across all distances.
Built in a half-size heavy weight, featuring a long head and substantial front taper, this line performs effectively for trout, panfish, pike, and steelhead. The name ‘Infinity’ reflects its versatility—there is no end to the range of fishing scenarios it can handle.
| Specification | Detail |
|---|---|
| Line Type | Smooth Fly Line |
| Weight | Half-Size Heavy |
| Drag Reduction | Up to five times less drag |
| Durability | Eight times more durable than traditional lines |
| Best For | Trout, panfish, pike, steelhead |
FAQ
What makes the Amplitude Smooth Infinity Warm different from other fly lines?
It offers up to five times less drag and eight times greater durability than traditional fly lines. Its long head and substantial front taper allow for both powerful streamer casts and delicate dry fly presentations.
Is this line suitable for both dry flies and streamers?
Yes, the Amplitude Smooth Infinity Warm is designed to perform well with both dry flies and streamers, making it a versatile choice for a wide range of fishing conditions.
What type of fishing conditions is this line best suited for?
It performs well in a variety of freshwater environments, including trout streams, panfish ponds, pike lakes, and steelhead rivers.


Theresa Manning –
This line has completely changed my fishing experience. I use it for both dry flies and streamers, and the mending is smooth and consistent. It handles heavy casts without tangles and lasts much longer than my previous lines.
Dylan Chapman –
I’ve tried several smooth lines before, but this one stands out. The drag is minimal, and I can cast long distances with precision. Great for both still water and moving water conditions.
Frank Jackson –
Solid performance overall. The durability is impressive, and it works well in both light and heavy presentations. A bit heavier than expected, but still manageable for most situations.
Victor Lawrence –
The Infinity name isn’t just marketing. I’ve used it in different water types and found it adaptable. The front taper helps with casting, and it doesn’t snag easily.