Scientific Anglers Amplitude Smooth Infinity Fly Line


SA Amplitude Smooth Infinity Fly Line
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Scientific Anglers Amplitude Smooth Infinity Fly Line
Weight-Forward Floating Fly Line

  • 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
  • Extended head length for long-distance casts and superior mending ability
  • An excellent general presentation line
  • Excellent for dry flies, nymphs, and streamers
  • Made a half-size heavy to load fast-action rods, but works well with a variety of rod actions
  • Improved Dry Tip technology for ultra floating tip section
  • For use in moderate and cold climates
  • Braided multifilament core
  • Available in two color schemes: Standard (aka bright) and Camo; the camo scheme features a mottled front taper for increased stealth
  • Tri-color coding on line – Tip / Head / Running Line
  • Enhanced Welded Loops for strong, easy connection of leaders, tips and backing
  • SA ID – SA AMPLITUDE MPX WF- X -F  (X = line weight)
  • 90′ Total length. (Head lengths vary depending on line size)
  • Made in the USA  (Go team, go!)
  • FREE Shipping in the US! (must use promo code:  ccfsfreeship)

The Scientific Anglers 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.

Here’s a short video on Vimeo featuring our friend, Hillary Hutchinson, explaining and showing you the benefits of this awesome fly line and see it in action!:  Amplitude Smooth Infinity.

Shop Staff Notes:  New in late 2018, this line has since become a big seller for us. It gives all the added benefits of our best selling, Amplitude textured lines but made for folks that don’t like or want a textured fly line. This makes for a durable, longer lasting, super slick fly line without the noise or finger irritation. An excellent choice to pair up with a Versileader and use for stripping streamers. This Infinity Taper seems to be excellent for just about everything we do with a single-handed rod from turning over dry flies of all sizes to the classic double nymph rig and I already mentioned using it for streamers. If you want a super slick, quiet line that will turn over just about any fly you want to fish, give the Scientific Anglers Amplitude Smooth Infinity Fly Line a try. The two color schemes allow you to pick your subtleness. If you want to easily see your line for mending and control, than choose the Standard (aka bright) color. If you are sneaking in on spooky fish in smooth water, than you should get the Camo color scheme. (This would be an excellent choice if you’re headed to New Zealand, where they don’t like you to use bright fly line -or felt soles!) The crew at Scientific Anglers has been hard at work making some excellent fly lines the past couple of years and this Amplitude Smooth, proves that fact.  New for 2020, this taper is now available in SA Amplitude TEXTURED Infinity Fly Line!

Info on SA Technologies:
AST Plus: A new formulation of our patented dry-slick technology provides continual line slickness over the lifetime of the line. Up to 50% slicker than the original AST and 200% more durable than the competition. Fly lines with AST Plus cast farther, float higher, and stay cleaner than any other lines ever built.
Improved Dry Tip:  Utilizing a unique blend of microballoons, we have developed a fly-line tip section that floats twice as high as a standard line. The tip section will be floating higher with our Dry Tip Technology, which means less drag from the front of the line and more positive hook-ups.
Welded Loops:  Exceptionally slick and strong, our Welded Loops produce smoother casts and easier turnover with a seamless fly-line-to-loop transition, making for softer landings and cleaner pickups. The sleek design also maintains buoyancy for improved fly-line flotation and enables quicker connections between fly line and leaders or Versileaders, or fly line and backing.
-SA ID:  Meet the Scientific Anglers Line Identification System. SA•ID is an innovative line-marking system allowing you to identify your lines at a glance. Wonder if a shooting head is 200 grain or a 300 or is that the Mirage LT Reel with the 5 weight or 6 weight line? Just look at the SA•ID. The SA•ID can be found on the first 1-2 feet of the tip section of your line.

TEXTURED Fly Lines we carry:  Freshwater:   Orvis PRO Power Taper Textured,    Orvis PRO Trout Textured;   SA Amplitude MPX Fly Line,   SA Amplitude Textured Infinity,   SA Amplitude Trout;

SMOOTH Fly Lines we carry:  Freshwater:   Orvis PRO Power Taper Smooth,   Orvis PRO Trout Smooth,    SA Amplitude Smooth Infinity,   SA Mastery MPX,   SA Mastery ART,   SA Frequency Trout,  Orvis Hydros WF Trout,   Orvis Hydros Superfine,   Orvis Clearwater;   RIO InTouch Gold,  RIO InTouch Technical Trout,   RIO InTouch Perception,   RIO InTouch Trout-Steelhead Indicator;   RIO FIPS Euro Nymph,  RIO Euro Nymph Shorty;

Big Game/Saltwater/Tropical:   SA Amplitude Smooth Titan Long,  SA Amplitude Smooth Grand Slam,  SA Amplitude Smooth Infinity Salt,  SA Mastery Redfish Cold,   Orvis Hydros Saltwater All Rounder;

Spey/Switch Lines:  RIO Trout Spey LINE,   RIO SKAGIT Trout Spey LINE,   RIO Trout Spey HEAD,   RIO Skagit Trout Spey HEAD,   RIO InTouch Switch Chucker,   RIO Scandi-Short Versitip,   RIO Skagit Max,   RIO Skagit Max Short,   RIO ConnectCore Metered Shooting,   RIO ConnectCore Shooting;   Orvis Mission Scandi,   Orvis Mission Skagit,   Orvis Mission Shooting,  Orvis Mission Tips;

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Color Scheme

Standard, Camo


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