For our co-founder, Ethan Castro, sound is more than just a sense - it's a way of life. Born prematurely and hard of hearing, Ethan was told early on that he shouldn't pursue a
career in music. But that didn't stop him.
As a child, Ethan would hug his father's speakers to feel every note of a techno song, relying on his sense of touch to experience the music that he couldn't fully hear. Driven by a passion for sound and a desire to create something new, Ethan went on to become a professional audio engineer and composer, determined to pursue a superior audio experience.
Today, Ethan is completing his Ph.D. in digital composition, researching how to combine hearing and feeling to create a new audio reproduction that can be experienced by everyone. ResonX™ technology is the result of that research, and it promises to revolutionize how we experience sound.
When Ethan showed his research to Valtteri Saalomaki, he exclaimed, "holy sh*t, this changes everything." That was the moment EDGE Sound Research was born and our journey began to fundamentally change how we perceive reality.
With ResonX™, you can finally experience the touch of full-range sound in a way that was never before possible. Ethan's background as someone who had to rely on feeling sound has driven him to create something truly groundbreaking - a technology that will change the way we think about audio forever.
our team.
our advisors.






















