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Scientific Anglers Amplitude Smooth MPX - New for 2022

Made a half-size heavy to load fast-action rods, but works well with a variety of rod actions
Price: $99.95
Product Details


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. 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.


  • 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
  • Improved Dry Tip
  • For use in moderate and cold climates
  • Braided multifilament core
  • Line ID: SA AMP SMTHMPX WF X F (X = line weight)
  • Welded Loops
  • Color: Optic Green / Moss / Buckskin


    Line Weight Head Weight*** Head Length Item Number Total Length
    WF3F 120 gr 32.0' 141239 90'
    WF4F 140 gr 34.0' 141246 90'
    WF5F 175 gr 36.0' 141253 90'
    WF6F 210 gr 38.0' 141260 90'
    WF7F 260 gr 40.0' 141277 90'
    WF8F 305 gr 42.0' 141284 90'
    ***Grain weight for the first 30'

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    Gorge Fly Shop, Inc - 3200 Lower Mill Dr., Hood River, OR 97031, US