Takes its name from King Magnus I, who ruled Denmark nearly a thousand years ago. The name means “great”—and when you plug your guitar into this board, you’ll hear its greatness from the first note you play.


Think of Magnus as a royal family of 5 classic T-Rex pedals—each with its own noble lineage. The Overdrive, Distortion, Delay, Reverb and Boost effects are all based on T-Rex classics used by the world’s best-known guitarists. And they all deliver the legendary vintage tone and uncomplicated operation T-Rex pedals are famous for.


When you’re onstage or in the studio, you can use your Magnus in “Live” mode, switching individual effects on and off and adjusting them while you play. But you can also switch to “Preset” mode, which lets you program up to 10 preset combinations of your different Magnus effects. That way, you can quickly call up whole sonic realms on the fly, without having to deal with individual pedals.


Let’s be honest: Not even a T-Rex effect is going to sound great if your guitar’s out of tune. That’s why Magnus comes with a built-in tuner that lets you silently tune before you start playing and keep you guitar in tune throughout the gig, without having to fiddle with external tuning devices.
The built in tuner is one more reason why we believe the T-Rex Magnus will quickly be crowned king of multi-effect boards—and the one indispensible tool for your guitar setup.
Try one today, and experience a great board with noble heritage that will instantly enrich your sound.


    • 5 Classic T-Rex effects in a box!
    • Overdrive, distortion, delay, reverb,
      boost, and a tuner
    • All analog gain section
    • Store up to 10 combinations
      in two five-preset banks
    • Easy to get around



    Input impedance @ 1KHz Higher than 1M Ohm
    Output impedance @ 1KHz Lower than 1K Ohm
    Power supply 12V DC (T-Rex FuelTank Chameleon and Goliath -If using the Chameleon, use the green current doubler cable
    Minimum power supply voltage 11,5V DC
    Maximum power supply voltage 12,5V DC
    Current draw @ 12V DC 360 mA
    Maximum input signal V p-p 3V p-p
    External connectors input jack, output jack (left), output jack (right) 12V DC jack
    External power supply included 12V DC minimum, 500mA center negative
    Pedal size incl. knobs (W x H x D) 445 x 60 x 150 mm / 17,5 x 2,4 x 5,9 inch
    Weight excl. packaging 1,8 kg / 63,49 oz