Skip to product information
1 of 1

Big River Fishing and Outdoors

Scientific Anglers Amplitude Smooth Infinity

Scientific Anglers Amplitude Smooth Infinity

Regular price $189.95 AUD
Regular price Sale price $189.95 AUD
Sale Sold out

Amplitude Smooth 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 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.


  • 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 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
  • Braided multifilament core
  • SA ID - SA AMP SMTH INFINITY WF X F (X = line weight)

Colours: Bamboo/Buckskin/Camo (shown) or Optic Green/Mist Green/Buckskin

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


View full details

Collapsible content


Spend Over $200 and get free shipping