Many of the wah-wah pedals produced over the decades are very different from each other. And then there are related effects – like the underrated (we think) yoy-yoy pedal. When we designed Gull, we wanted to bring you the very best that history has to offer – and then some.


Gull gives you two distinct wah-wah sounds – a light wah that’s great for clean guitars and rhythm parts and a heavy, smoking wah for distorted leads – plus the unique dual-filter yoy-yoy effect. Yoy-yoy is a basically a wah effect with an ultra-high-frequency sweep soaring overhead. It’s an incredibly rich sound.

A classic SLOPE knob lets you shape the character of your wah/yoy sweep, and a BOOST function lets you set a higher volume for your output signal when you kick your Gull into action.

Product Page

Review by Steve Ouimette, premierguitar.com

Review by Robby Mildenberger, bonedo.de

Official Product Video

Demo by Brett Kingman

Manual

Demo by colin smith

Gull Wah

Tremster is a masterpiece of effective simplicity. Its only controls are Depth, Speed, Volume and Mode. The pedal is precision-engineered to sound great at any setting – so you can experiment all you like and never get a sound you wouldn’t want to use. Like all T-Rex pedals, Tremster boasts an elegant, rugged design that’s built for a life on the road. It comes in cherry red.

Demo by ProGuitarShopDemos

Review by Rob Laing, musicradar.com

Review by rabbitgonemad

Review by MJSGUITAR

Tremster

Twister 2 offers all the controls you need to define your own classic chorus
or flanger sound. 
The main controls on Twister 2 are the DEPTH, RATE, LEVEL, TONE and REGEN
knobs, and the CHORUS/FLANGER button.
DEPTH determines the degree of modulation, or how heavy your chorus/
flange sound is. Turn it down for a subtler natural sound, and crank it up for a
more radical effect.The RATE knob controls the speed of your twist – from a
very slow rotating sound to a fast, vibrant sparkle.

Demo by Negba

Review by Thomas Dill

Twister 2

Viper will give you a range of cool, modulated 70s sounds – all enhanced
with a T-Rex bite. You’ll recognize the vibe effect at once, and it’s easy to
dial in everything from “Little Wing” to “Bridge of Sighs”.

Review by Musiker-Board

Viper

Phaser is a classic phase shifter that will bring your sound to life by
adding dynamic, undulating colour to rhythm and lead parts. It’s got
all the controls you need and nothing you don’t – and it delivers the
incredible tubey vintage tone you expect from a T-Rex pedal.

Demo by Wall of Sound

Review by The Gear Page

Tonebug Phaser

Tonebug Phaser by T-Rex

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