Scientific Anglers Fly Lines: Amplitude Textured Series
Amplitude Textured Premium Fly Lines
When we see room for improvement, we jump at the chance. In this case, we wanted to make our lines even slicker and more durable. Which brings us to AMPLITUDE. The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude will shoot farther and last longer than any other line on the market. It’s SLICKNESS down to a SCIENCE.
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Amplitude Textured Trout Expert


The first series of lines to feature the revolutionary AST PLUS slickness additive, Amplitude Textured series will shoot farther and last longer than any other line on the market. It’s slickness down to a science.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation; it simply keeps dry flies floating longer
- Shooting Texture running line delivers longer casts, thanks to a reduction in friction
- 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 TROUT EXPERT WF X F (X = line weight)
Colour: Leather/Sage Green/Buckskin
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF2F | 65.0′ | 90.0′ | 80 |
| WF3F | 65.0′ | 90.0′ | 100 |
| WF4F | 67.0′ | 90.0′ | 120 |
| WF5F | 69.0′ | 90.0′ | 140 |
| WF6F | 71.0′ | 90.0′ | 160 |
| WF7F | 73.0′ | 90.0′ | 185 |
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Amplitude Textured Trout GP

The first series of lines to feature the revolutionary AST PLUS slickness additive, Amplitude Textured series will shoot farther and last longer than any other line on the market. It’s slickness down to a science.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation; it simply keeps dry flies floating longer
- Shooting Texture running line delivers longer casts, thanks to a reduction in friction
- Mid-length head for exceptional mending and accuracy at distance
- The casters line
- Braided multifilament core
- SA AMP TROUT GP WF X (X = line weight)
Colour: Butter/Sage/Willow
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 49.5′ | 90.0′ | 105 |
| WF4F | 49.5′ | 90.0′ | 125 |
| WF5F | 50.5′ | 90.0′ | 145 |
| WF6F | 51.0′ | 90.0′ | 170 |
| WF7F | 52.0′ | 90.0′ | 195 |
| WF8F | 53.0′ | 90.0′ | 220 |
Amplitude Textured Infinity


The conventional wisdom in fly fishing is that there’s no such thing as a “do it all” freshwater line. We have something to say about that. The Amplitude Textured Infinity Fly line has the power to bomb out streamers, yet retains delicacy for dry flies. It mends like an absolute dream, and delivers flies at all distances. Built a half-size heavy, with a long head and substantial front taper, it’s perfect for everything from trout and panfish to pike and steelhead. There’s a reason we call it the Infinity: there is no end to what you’ll be able to do with it.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation; it simply keeps dry flies floating longer
- Shooting Texture running line delivers longer casts, thanks to a reduction in friction
- Extremely versatile general-purpose taper designed for most freshwater species; an excellent line for trout, grayling, panfish, bass, carp, steelhead, salmon, and pike
- Made a half-size heavy to load fast-action rods, but works well with a variety of rod actions
- Extended head length for long-distance casts and superior mending ability
- SA ID – SA AMP INFINITY WF X F (X = line weight)
Colour: Bamboo/Buckskin/Camo
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 47.0′ | 90.0′ | 110 |
| WF4F | 48.0′ | 90.0′ | 130 |
| WF5F | 49.0′ | 90.0′ | 150 |
| WF6F | 50.0′ | 90.0′ | 175 |
| WF7F | 51.0′ | 90.0′ | 200 |
| WF8F | 52.0′ | 90.0′ | 225 |
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Amplitude Textured MPX


Built a half-size heavy, the Amplitude Textured MPX taper starts where the GPX left off. Redesigned with more mass toward the front of the head, the MPX provides the same benefits of the GPX, with an added emphasis on presentation. The power is still there, only with an added bit of finesse. Meet your new best friend.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- The ultimate general presentation line
- Improved version of our GPX taper
- Made a half-size heavy to load fast-action rods
- Best for large dry flies, nymphs, and streamers
- Braided multifilament core
- SA ID – SA AMPLITUDE MPX WF X F (X = line weight)
Colour: Optic Green/Moss/Buckskin
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 32.0′ | 90.0′ | 110 |
| WF4F | 34.0′ | 90.0′ | 130 |
| WF5F | 36.0′ | 90.0′ | 150 |
| WF6F | 38.0′ | 90.0′ | 175 |
| WF7F | 40.0′ | 90.0′ | 200 |
| WF8F | 42.0′ | 90.0′ | 225 |
Amplitude Textured Double Taper


Weight forward fly lines can be tailored to a variety of tasks. However, sometimes a Double Taper is just the best tool for the job. Whether is a classic rod, a modern glass or just a need for delicate dry fly deliveries the Amplitude Textured Double Taper will give you feel you desire with the performance you need.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation; it simply keeps dry flies floating longer
- Shooting Texture running line delivers longer casts, thanks to a reduction in friction
- Excels in medium-to-long distances with dry flies and smaller nymphs; wonderful on glass and bamboo
- For use in moderate and cold climates
- Braided multifilament core
- SA AMPLITUDE DOUBLE TAPER DT X F (X = line weight)
Colour: Mint Green/Leather/Buckskin
| Line weight | Belly length | Total length | Grain weight |
|---|---|---|---|
| DT2F | 76.5′ | 85.0′ | 80 |
| DT3F | 75.0′ | 85.0′ | 100 |
| DT4F | 73.5′ | 85.0′ | 120 |
| DT5F | 72.0′ | 85.0′ | 140 |
Amplitude Textured Trout Expert
Fly fishing for trout has never been so smooth, especially with a triple-textured line. Featuring our unparalleled AST Plus slickness additive, the Amplitude Textured Trout is slicker than any trout taper we’ve ever made, and will last over 8 times longer than other lines on the market. Built for precise presentations and those who love dry flies, the Amplitude Trout is a game changer on any stream, anywhere.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Revised compound taper for delicate deliveries
- Excels in medium-to-long distances with dry flies and smaller nymphs and streamers
- Designed specifically for chasing trout
- Braided multifilament core
- SA ID – SA AMPLITUDE TROUT WF X F (X = line weight)
Colours: Celestial Blue/Bamboo/Blue Heron (shown) or Moss/Mist Green/Willow
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 64.0′ | 90.0′ | 100 |
| WF4F | 66.0′ | 90.0′ | 120 |
| WF5F | 68.0′ | 90.0′ | 140 |
| WF6F | 70.0′ | 90.0′ | 160 |
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Amplitude Textured Trout Standard

The first series of lines to feature the revolutionary AST PLUS slickness additive, Amplitude Textured series will shoot farther and last longer than any other line on the market. It’s slickness down to a science. Amplitude Textured Trout Standard is a true to AFFTA line weight casters fly line. Built with a mid-length head for exceptional mending and accuracy at long distances. If you love casting this will quickly become one of your new favorites.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation; it simply keeps dry flies floating longer
- Shooting Texture running line delivers longer casts, thanks to a reduction in friction
- Mid-length head for exceptional mending and accuracy at distance
- The casters line
- Braided multifilament core
- SA ID – SA AMPLITUDE STANDARD WF X F (X = line weight)
Colours: Green/Willow/Dark Willow
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF2F | 42.0′ | 90.0′ | 80 |
| WF3F | 45.0′ | 90.0′ | 100 |
| WF4F | 48.0′ | 90.0′ | 120 |
| WF5F | 51.0′ | 90.0′ | 140 |
| WF6F | 54.0′ | 90.0′ | 160 |
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Amplitude Textured Anadro/Nymph


If you’re anything like us, the allure of big fish and big rivers is intoxicating. That’s precisely why we created Amplitude Textured Anadro Indicator. Designed with line control in mind, its extended rear taper allows you to cast a mile, mend with authority, and turn over nearly any rig imaginable—from dredging double nymphs to larger dry-dropper concoctions. Steelhead, salmon, and trout won’t know what hit them.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Long rear taper for extended line control and long-distance casting
- Overweighted by 1.5 sizes to assist in turning over heavy rigs
- Use one size heavy for switch rods
- Braided multifilament core
- SA ID – SA AMPLITUDE ANADRO WF X F (X = line weight)
Colour: Turtle Grass/Willow/Optic Green
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5F | 60.0′ | 100.0′ | 175 |
| WF6F | 60.0′ | 100.0′ | 200 |
| WF7F | 61.0′ | 100.0′ | 225 |
| WF8F | 62.0′ | 100.0′ | 260 |
| WF9F | 63.0′ | 100.0′ | 305 |
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Amplitude Textured Bass Bug


You’ve got articulated streamers and poppers hanging from the lampshade on your desk. You think in terms of bass, both smallmouth and largemouth. The term conehead doesn’t refer to an old comedy sketch. We totally get it. And that’s why we designed the Amplitude Bass Bug. Similar in design to our Titan Long, but with a specialized warm-weather coating built to withstand hot temperatures. It’s quite possibly the best bass fly line ever constructed. If you have an all-encompassing need to throw big flies for bucketmouths, then look no further. This fly line is made for you.
Features:
- For use in moderate to hot climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Designed specifically for throwing large, air-resistant dry flies and streamers for bass in rivers, lakes, and ponds
- Overweighted by two line sizes to assist in loading rods and turning over heavy rigs; use designated line weight for your rod
- Features a specialized warm-weather coating for fishing in high temperatures
- Braided multifilament core
- SA ID – SA AMP BASS BUG WF X F (X = line weight)
Colours: Frog Green/Shad Blue/Camo
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 43.0′ | 90.0′ | 210 |
| WF7F | 43.0′ | 90.0′ | 240 |
| WF8F | 43.0′ | 90.0′ | 280 |
| WF9F | 43.0′ | 90.0′ | 330 |
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Amplitude Textured Infinity Salt


Amplitude Textured Infinity Salt is technical, versatile, accurate and simply the most advanced saltwater line available. Featuring the revolutionary AST Plus slickness additive for superior shooting ability and increased durability the Infinity Salt will handle the most rigorous of conditions year after year. Infinity Salt is a half line weight heavy to turn over any fly on even the windiest of days. The extended head length makes it more accurate then short shooting heads so that you can land your fly to spooky fish in the most efficient manner.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Made half size heavy turns over large flies on windy days
- Extended head length for accuracy at distance
- High-contrast sighter to identify the back of the line when fighting fish on long runs
- Tropi-Core technology remains stiff and slick in tropical environments
- SA ID – SA AMP INFINITY SW WF XX F (X = line weight)
Colour: Black/Sand/Horizon
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF7F | 48.0′ | 100.0′ | 200 |
| WF8F | 49.0′ | 100.0′ | 225 |
| WF9F | 50.0′ | 100.0′ | 260 |
| WF10F | 51.0′ | 100.0′ | 305 |
| WF11F | 52.0′ | 100.0′ | 355 |
| WF12F | 53.0′ | 100.0′ | 415 |
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Amplitude Textured Tropical/Jungle Titan


We’ve taken our Titan taper, placed in on our Tropi-Core tropical core, and created the perfect line for throwing large flies in the hottest environments. The Amplitude Textured Tropical/Jungle Titan features the revolutionary AST Plus slickness additive, meaning it is more durable, and slicker, than other lines built for the salt. From tarpon and permit to snook and redfish, this line is built for the harshest environments, and biggest fish, out there. Designed with a camo tip, the Tropical Titan provides power, stealth, and durability. What more could you ask for?
Features:
- 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
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- High-contrast sighter to identify the back of the line when fighting fish; camo tip for stealth
- Powerful head loads quickly and delivers large flies to distant targets; ideal for tarpon, permit, snook, and redfish; useful for GTs, bonefish, and sea trout
- Built two line sizes heavy; use designated line weight for your rod
- Tropi-Core technology remains stiff and slick in tropical environments
- SA ID – SA AMP TROP TITAN WF X F (X = line weight)
Colour: Black/Horizon/Dark Turtle Grass/Camo
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF8F | 43.0′ | 100.0′ | 280 |
| WF9F | 43.0′ | 100.0′ | 330 |
| WF10F | 43.0′ | 100.0′ | 380 |
| WF11F | 43.0′ | 100.0′ | 450 |
| WF12F | 43.0′ | 100.0′ | 500 |
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Amplitude Textured Grand Slam


Tarpon. Bonefish. Permit. All in one day. All on one fly line. That’s the idea behind the Amplitude Textured Grand Slam, a line designed specifically to help you achieve one of angling’s most elusive accomplishments. With a short, powerful head the Grand Slam cuts through wind and turns over crabs, shrimp, and tarpon toads with ease. We’ve got the line. You just need the fish.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Designed for demanding tropical saltwater applications
- Loads rods quickly, cuts through the wind with ease, and turns over big saltwater flies
- Overweighted by .75 sizes to load rods quickly; use designated line weight for your rod
- Short, powerful head for quick casts to moving targets
- Tropi-Core technology for tropical climates
- SA ID – SA AMPLITUDE GR SLAM WF X F (X = line weight)
Colour: Pale Yellow/Sand/Horizon
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF7F | 40.0′ | 100.0′ | 205 |
| WF8F | 40.0′ | 100.0′ | 235 |
| WF9F | 40.0′ | 100.0′ | 270 |
| WF10F | 40.0′ | 100.0′ | 320 |
| WF11F | 40.0′ | 100.0′ | 370 |
| WF12F | 40.0′ | 100.0′ | 435 |
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Amplitude Textured Bonefish


A day of bonefishing will either be the most fun you’ve had with a fly rod or the most frustrating day of your life. Take some of the chance out of the equation with the Amplitude Textured Bonefish. Built on a stiff core for tropical conditions, and featuring our AST Plus slickness additive, the Bonefish taper is designed with a long, compound head for casting accuracy and delicate deliveries to fish that you’ll swear have a sixth sense.
Features:
- 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
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Revised taper for delicate deliveries to skittish fish
- Stiff coating and core for enhanced shooting
- Looped on both ends for quick rigging
- Medium-length head for fly control and casting accuracy
- Tropi-Core technology for tropical climates
- SA ID – SA AMPLITUDE BONEFISH WF X F (X = line weight)
Colour: Black/Surf/Ivory
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 35.5′ | 100.0′ | 160 |
| WF7F | 37.5′ | 100.0′ | 185 |
| WF8F | 39.7′ | 100.0′ | 210 |
| WF9F | 41.8′ | 100.0′ | 240 |
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Amplitude Textured Bonefish Plus


A day of bonefishing will either be the most fun you’ve had with a fly rod or the most frustrating day of your life. Take some of the chance out of the equation with the Amplitude Textured Bonefish. Built on a stiff core for tropical conditions, and featuring our AST Plus slickness additive, the Bonefish taper is designed with a long, compound head for casting accuracy and delicate deliveries to fish that you’ll swear have a sixth sense.
Features:
- Based on our popular Grand Slam taper profile, Bonefish Plus boasts an extended head length and lighter, half-heavy, weight, but maintains the short front taper to cast long leaders with ease.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- High-contrast sighter to identify the back of the line when fighting fish on long runs
- Tropi-Core technology remains stiff and slick in tropical environments
- SA ID – SA AMP BONEFISH PLUS WF X F (X = line weight)
Colour: Black/Pale Yellow/Ivory
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 50.5′ | 100.0′ | 175 |
| WF7F | 50.5′ | 100.0′ | 200 |
| WF8F | 50.5′ | 100.0′ | 225 |
| WF9F | 50.5′ | 100.0′ | 260 |
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Amplitude Textured Tarpon


There is absolutely nothing in fly fishing quite like seeing a tarpon inhale your fly, leap toward the heavens, and race like a madman for the horizon. In order to make that happen, you’ll need help: the Amplitude Textured Tarpon. Designed with a short head for quick shots, this is the perfect line for casting flies to tarpon of all shapes, sizes, and temperaments. Just remember to bow to the king when it jumps.
Features:
- 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
- Floating Texture on the tip section for the ultimate in flotation
- Shooting Texture running line delivers longer casts
- Short head for quick rod loading
- Stealthy color scheme for wary fish
- High-strength core to fight large fish
- Tropi-Core technology for tropical climates
- SA ID – SA AMPLITUDE TARPON WF X F (X = line weight)
Colour: Black/Sand/Surf
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF10F | 36.0′ | 100.0′ | 285 |
| WF11F | 36.0′ | 100.0′ | 340 |
| WF12F | 36.0′ | 100.0′ | 400 |
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