“Just like driving a Plexi Super Lead flat out, but accessible at lower volume levels – and won’t cause permanent ear damage”: Universal Audio UAFX Lion ’68 Super Lead Amp review

UA sought to capture the tone and feel of one of the most legendary guitar amps of all time in a pedal – and the Lion nails the brief

Universal Audio UAFX Lion '68
(Image: © Universal Audio)

Guitar World Verdict

The UAFX ’68 Lion goes beyond its promise of providing the most authentic Plexi tone from a pedal by providing emulation of three killer bucket list late-’60s Marshall amps that players can enjoy at any volume level and for about the price of one new old stock Mullard EL34 tube.


  • +

    Truly authentic emulations of three desirable circa 1968 Marshall Plexi Super Lead/Bass amps.

  • +

    UAFX Control Mobile app makes it easy to download and store a wide variety of presets.

  • +

    Cabinet emulation is spot on.


  • -

    Many users probably would prefer plate or hall reverb over the Room tone (ambient room-mic model).

  • -

    Only one Preset sound is accessible (in addition to Live mode) via the pedal’s footswitches.

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

The Marshall JMP model 1959 Super Lead produced from the late ’60s through the early ’70s is a bucket list amp for many guitarists. 

This was the guitar amp that defined the sounds of early hard rock, including Jimi Hendrix, Eric Clapton with Cream, Billy Gibbons with early ZZ Top, Van Halen, AC/DC, the Ramones (the latter two during their classic mid-to late-’70s era) and countless other acts. Unfortunately, obtaining the real deal is an unlikely prospect for all. 

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Chris Gill

Chris is the co-author of Eruption - Conversations with Eddie Van Halen. He is a 40-year music industry veteran who started at Boardwalk Entertainment (Joan Jett, Night Ranger) and Roland US before becoming a guitar journalist in 1991. He has interviewed more than 600 artists, written more than 1,400 product reviews and contributed to Jeff Beck’s Beck 01: Hot Rods and Rock & Roll and Eric Clapton’s Six String Stories.