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- Accessories
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- Fly Lines:
- - Magnitude Textured Series
- - Magnitude Smooth Series
- - Amplitude Textured Series
- - Amplitude Smooth Series
- - Sonar Series
- - Two-handed Series
- - Mastery Series
- - Frequency Series
- - Air Cel | Wet Cel Series
- - Shooting Lines & Tapers
- Fly Line Cleaners
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- Tippet
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Scientific Anglers Fly Lines: Amplitude Smooth Series
Amplitude Smooth Premium Fly Lines
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.
New colour added for 2024
Amplitude Smooth Infinity
The Amplitude Smooth Infinity 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.
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 Smooth Infinity 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:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Extremely versatile general-purpose taper designed for most freshwater species; an excellent fly 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
- Excellent for dry flies, nymphs, and streamers
- For use in moderate and cold climates
- Braided multifilament core
- SA ID - SA AMP SMTH INFNTY WF X F (X = line weight)
Colours: Bamboo/Buckskin/Camo or Optic Green/Mist Green/Buckskin or Optic Green/Satin Orange/Creamsicle
| 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 |
Amplitude Smooth MPX
Built a half-size heavy, the Amplitude Smooth 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
- An excellent general-presentation line for trout, panfish, bass, grayling and carp; also useful for steelhead, salmon, and pike
- Made a half-size heavy to load fast-action rods, but works well with a variety of rod actions
- Best for large dry flies, nymphs, and streamers
- Braided multifilament core
- SA ID - SA AMP SMTH INFNTY 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 | 340' | 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 Smooth Infinity Glow
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 Smooth Infinity 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
- 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
- Excellent for dry flies, nymphs, and streamers
- Available in three color schemes: standard, camo, and glow tip; the camo scheme features a mottled front taper for increased stealth
- Braided multifilament core
- For best glow results use a UV light to charge
- SA ID - SA AMP SMTH INFNTY WF X F (X = line weight)
Colour: Optic Green/Mist Green/Glow (night) - Ivory (day)
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| 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 |
New for 2024
Amplitude Smooth Infinity Plus
One size heavy 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:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- A scaled up version of our general purpose Infinity taper, the Infinity Plus is built a full size heavy for the fastest rods and larger trout rigs
- Underlining Infinity Plus by 1 size creates an AFFTA true standard weight for slower rods and advanced casters
- Braided multifilament core
- SA ID - SA AMP S INFNTY PLUS WF X F (X = line weight)
Colour: Mist Green/Buckskin/Willow
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 47.0' | 90.0' | 120 |
| WF4F | 48.0' | 90.0' | 140 |
| WF5F | 49.0' | 90.0' | 160 |
| WF6F | 50.0' | 90.0' | 185 |
| WF7F | 51.0' | 90.0' | 210 |
| WF8F | 52.0' | 90.0' | 240 |
New for 2024
Amplitude Smooth Infinity Warm
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.
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 Smooth Infinity 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:
- A warmwater version of our popular Infinity taper, Infinity Warm features a tropical coating with a coldwater core to bridge the gap between temperature extremes.
- Infinity Warm is a great option for throwing smaller poppers, hoppers, and streamers for warmwater quarry that require more finesse.
- A great option for summer days with warm boat decks when targeting trout.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Braided multifilament core
- SA ID - SA AMP S INFNTY WARM WF X F (X = line weight)
Colour: Mist Green/Bronze/Tannic
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5F | 48.0' | 90.0' | 150 |
| WF6F | 49.0' | 90.0' | 175 |
| WF7F | 50.0' | 90.0' | 200 |
| WF8F | 51.0' | 90.0' | 225 |
| WF9F | 52.0' | 90.0' | 260 |
Amplitude Smooth Trout
There’s a sipper 40 feet away and he looks like he’s eating tricos. The natural rhythms of the rise and the river begin to make sense, so you ready yourself to cast. In that moment, you shouldn’t be thinking about your fly line, because you should trust it implicitly. In that moment, you need the Amplitude Smooth Trout taper. Featuring our unparalleled AST Plus slickness additive, the Amplitude Smooth Trout is designed specifically for precise presentations and those who love dry flies.
Features:
- For use in cold to moderate climates
- 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 smooth, true-to-grain-weight line for casting small dry flies to picky risers
- Designed specifically for chasing trout; also useful for grayling and panfish
- Elongated front taper is designed for delicate presentations
- Braided multifilament core
- SA ID - SA AMP SMTH TROUT WF X F (X = line weight)
Colour: Celestial Blue/Bamboo/Blue Heron
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF2F | 64.0' | 90.0' | 90 |
| WF3F | 64.0' | 90.0' | 100 |
| WF4F | 66.0' | 90.0' | 120 |
| WF5F | 68.0' | 90.0' | 140 |
| WF6F | 70.0' | 90.0' | 160 |
| WF7F | 72.0' | 90.0' | 185 |
Amplitude Smooth Creek Trout
The Creek Trout Taper is designed for casting in small creeks where your average weight forward lines doesn’t make the cut. The rear loaded short-bellied fly line with an extended handling section. That means more mass is distributed to the front of the line, which assists in turning over weighted flies and performing roll casts.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Short-head design with handling line delivers flies at short-to-medium range with extended line control
- Built full size heavy
- Turns over weighted nymphs and streamers, yet offers light presentations when used with long leaders
- SA ID - SA AMP S CREEK TROUT WF X F (X = line weight)
Colour: Moss/Leather/Willow
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF2F | 64.0' | 90.0' | 100 |
| WF3F | 64.0' | 90.0' | 120 |
| WF4F | 66.0' | 90.0' | 140 |
| WF5F | 68.0' | 90.0' | 160 |
| WF6F | 70.0' | 90.0' | 185 |
Amplitude Smooth Anadro/Nymph
If you’re anything like us, the allure of big fish and big rivers is intoxicating. That’s precisely why we created the Amplitude Smooth Anadro/Nymph. 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
- Long rear taper for extended line control and long-distance casting; the best nymphing taper we offer
- An unbelievable indicator line for nymphing up trout and bass or swinging flies for steelhead and salmon; excellent for double-nymph rigs or hopper-droppers
- Overweighted by 1.5 sizes to assist in turning over heavy rigs; use designated line weight for your rod
- Use one size heavy for switch rods
- Braided multifilament core
- SA ID - SA AMP SMTH ANADRO WF X F (X = line weight)
Colour: Moss/Willow/Orange
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF4F | 60.0' | 100.0' | 150 |
| 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 |
Amplitude Smooth Anadro Stillwater Indicator
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:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- The perfect stillwater indicator line, featuring alternating high viz color bands at the tip, for easy tracking and strike detection
- Overweighted by 1.5 sizes to assist in turning over long leaders with large indicators
- Braided multifilament core
- SA AMP SMTH STLLWTR WF X F (X = line weight)
Colour: Ornage/Willow/Orange/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 |
Amplitude Smooth Titan Long
You’ve got articulated streamers hanging from the lampshade on your desk. You think in terms of black, white, or olive. The term conehead doesn’t refer to an old comedy sketch. We totally get it. And that’s why we designed the Amplitude Smooth Titan Long. Similar in design to our Titan taper, but with an extended rear taper for better mending ability and more line control, it’s quite possibly the best warmwater fly line ever constructed. If you have an all-encompassing need to throw big flies for big fish, then look no further. This fly line is made for you.
Features:
- For use in cold to moderate climates
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Designed for targeting bass; perfect for pike, carp, and throwing streamers at trout
- Powerful head loads quickly and delivers large flies to distant targets
- Built two sizes heavy for turning over big rigs; use designated line weight for your rod
- Extended rear taper for line control and mending ability
- Ideal line for boat or wade fishing
- Braided multifilament core
- SA ID - SA AMP SMTH TTN LNG WF X F (X = line weight)
Colour: Sage/Moss/Dark Olive
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5F | 43.0' | 90.0' | 185 |
| WF6F | 43.0' | 90.0' | 210 |
| WF7F | 43.0' | 90.0' | 240 |
| WF8F | 43.0' | 90.0' | 280 |
| WF9F | 43.0' | 90.0' | 330 |
| WF10F | 43.0' | 90.0' | 380 |
Amplitude Smooth Infinity Salt
The 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. The 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
- 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 S 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 |
Amplitude Smooth Grand Slam
Tarpon. Bonefish. Permit. All in one day. All on one fly line. That’s the idea behind the Amplitude Smooth 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
- The perfect line for bonefish, tarpon, and permit on the flats; also great for snook, redfish, and sea trout
- Overweighted by .75 sizes to load rods quickly; use designated line weight for your rod
- Short, powerful head turns over long leaders with heavy flies
- Tropi-Core technology remains stiff and slick in tropical environments
- SA ID - SA AMP SMTH GR SLAM WF X F (X = line weight)
Colour: Pale Yellow/Sand/Horizon
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 40.0' | 100.0' | 180 |
| 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 |
Amplitude Smooth 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 Smooth 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
- Revised taper for delicate deliveries to skittish fish in crystal-clear water; an excellent line for bonefish and permit
- Loads fast and lands light for increased accuracy
- Medium-length head for line control and optimal casting and fishing at 60-80 feet
- Tropi-Core technology remains stiff and slick in tropical environments
- SA ID - SA AMP SMTH 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 |
New for 2024
Amplitude Smooth Bonefish Plus
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:
- 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
- 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 SMTH 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 |
Amplitude Smooth 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 Smooth 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
- Loads fast, shoots quickly, lands softly for wary fish
- Stealthy color scheme
- Reinforced 45lb big-game core
- Tropi-Core technology remains stiff and slick in tropical environments
- SA ID - SA AMP SMTH TARPON WF XX 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 |
Amplitude Smooth Redfish Cold
Let’s get this out of the way: catching a tailing redfish might be the greatest thing in the world. Just make sure you have the right line for the job. Our Amplitude Smooth Redfish Cold line is designed with a short head for quick shots, which is exactly what you’ll need when you’re poling through a marsh in 10 inches of water on a freakishly chilly fall evening.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Short front taper and head for quick, powerful casts
- Made a half-size heavy to deliver large flies in demanding situations
- Warm and cold version to cover both summer and winter redfish
- SA ID - SA_AMP_S_REDFISH_COLD_WF_XX_F (X = line weight)
Colour: Black/Sand/Horizon
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF8F | 31.0' | 100.0' | 225 |
| WF9F | 31.0' | 100.0' | 260 |
| WF10F | 31.0' | 100.0' | 305 |
Amplitude Smooth Redfish Warm
Let’s get this out of the way: catching a tailing redfish might be the greatest thing in the world. Just make sure you have the right line for the job. Our Amplitude Smooth Redfish Warm fly line is designed with a short head for quick shots, which is exactly what you’ll need when you’re poling through a marsh in 10 inches of water on a brutally hot summer afternoon.
Features:
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Short front taper and head for quick, powerful casts
- Made a half-size heavy to deliver large flies in demanding situations
- Warm and cold version to cover both summer and winter redfish
- SA ID - SA_AMP_S_REDFISH_WARM_WF_XX_F (X = line weight)
Colour: Black/Turtle Grass/Horizon
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 31.0' | 100.0' | 175 |
| WF7F | 31.0' | 100.0' | 200 |
| WF8F | 31.0' | 100.0' | 225 |
| WF9F | 31.0' | 100.0' | 260 |