Vertex Effects Ultraphonix MKII Pedal

Unlock the iconic tone of rare boutique Dumble amplifiers with the Ultraphonix MKII Overdrive Pedal. Whether you’re chasing smooth sustain or bold harmonic overtones, this pedal brings that unmistakable “D-style” sound to your rig without the hefty price tag. It’s the perfect way to elevate your tone, with all the control you need to shape your perfect overdrive sound.

Vertex Effects Ultraphonix MKII Pedal Review

Built with years of research and direct comparisons to authentic Dumble Overdrive Special amps, the Ultraphonix MKII gives you the rich midrange and cascading gain of those legendary boutique amplifiers. With versatile controls like Master Volume, Input Gain Level, and a Filter knob for upper-mid sculpting, this pedal ensures you can fine-tune your overdrive to perfection. Whether you’re playing with single coils or humbuckers, the Ultraphonix MKII adapts to give you consistent, powerful tone at any volume.