Scientific Anglers Amplitude Smooth Series Fly Lines

Here’s the straight talk: Amplitude Smooth lines with AST Plus are the highest-floating, longest-lasting, premium smooth fly lines on the market. They last twice as long as the closest competitor, and have up to five times less friction. These lines are, simply put, a nesting doll full of slickness that stay slick every time you open one of those scary little dolls right up. Amplitude Smooth lines feature welded loops on both ends for easy rigging and come in three colors, to identify the front taper and end of the head so you’ll know when to pick up your line and cast. Each line also features the SA•ID system that tells you exactly which line this is once it’s on your reel. You want the best smooth lines in the world? Well, I don’t know why you’d look anywhere else.

Amplitude Smooth Infinity

The go-to line for all freshwater species

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 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
Available in two color schemes: standard and camo; the camo scheme features a mottled front taper for increased stealth
For use in moderate and cold climates
Braided multifilament core
SA ID - SA AMP SMTH INFINITY WF X F (X = line weight)

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
WF9F	53.0'	90.0'	260

Amplitude Smooth Trout

For delicate deliveries to 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 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
For use in moderate and cold climates
Braided multifilament core
SA ID - SA AMP SMTH TROUT WF X F (X = line weight)

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 Anadro/Nymph

For nymphing big rivers and stillwater

he 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.

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 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
For use in moderate and cold climates
Braided multifilament core
SA ID - SA AMP SMTH ANADRO WF X F (X = line weight)

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 Titan Long

For superior turnover with line control

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 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
For use in moderate and cold climates
Braided multifilament core
SA ID - SA AMP SMTH TTN LNG WF X F (X = line weight)

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 go-to line for all saltwater species

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 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)

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

Bonefish, permit and tarpon - all on one line

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 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)

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

For bonefish on the flats

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 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)

Line weight	Head length	Total length	Grain weight
WF5F	33.7'	100.0'	140
WF6F	35.5'	100.0'	160
WF7F	37.5'	100.0'	185
WF8F	39.7'	100.0'	210
WF9F	41.8'	100.0'	240

Amplitude Smooth Tarpon

For targeting laid-up or moving 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 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)

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'	395

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