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Keystone Musical Instruments provides fresh, intuitive tools to help you push sonic boundaries and find new forms of creative expression.

APEX Mode

Assignable Parameter EXpression Mode

Keystone's core mission is to make music more expressive, creative, and fun.

To that end, APEX Mode quickly and easily maps parameters (knobs) to en external epression pedal. Hold down FS1 at powerup, turn a knob or many knobs to assign them to the expression pedal.

That's it... expression made simple!

Full MIDI Control

Keystone Effects Pedals have MIDI In and Thru, enabling every pedal to carry MIDI to the next stomp with minimal cabling. This allows full MIDI control, including tempo from a master clock source for our time-based effects, and instant program changes, morphing your entire sonic palette with one MIDI command.

Why Keystone?

Pedals are like candy; colorful, addicting and give you a rush. But seriously, why another pedal line?

Innovation with Intention

We’re not just iterating; we’re building on the tried and true and creating something genuinely new and respectful to the player's true needs -- high quality, fair price, great service, reduced weight, reduced cabling, granular control...and new sounds!

Good Products from Good People

We do things the right way. Every pedal is extensively tested in the lab, then gigged on real life stages before its release. Updates are free for life. When you've bought a Keystone product, you own it outright. We treat everyone the way we would like to be treated.

Collective Excellence

We take a community-minded approach and seek to learn what musicians want and need. We believe "all of us are smarter than any of us", and we hope you'll find new sonic territory in our products, and share it with your listeners and the world.

Creating Artistic Expression

We are working musicians and often find ourselves thinking, "I wish my gear could..." and we answered it with pristine audio quality, but also: it should weigh less, be compact, look clean, reduce what's unnecessary and focus on things that make sound (instead of buying more cables and adapters for example), be high quality diecast construction, assembled in the USA, support stage and studio, stereo or mono, tap, MIDI or free tempos...