Who is Chad Mangrum?

I started in the mid-’90s at Mojo Musical Supply, building and wrapping cabinets—just a kid obsessed with gear! In 1999, I joined Two-Rock Amplifiers and spent the next 16 years immersed in every part of the process. I eventually led production, engineering, and design, working alongside one of the best minds in the industry and learning what makes an amp truly speak. In 2015, I started SineWave as a way to build without compromise. This brand is personal—every amp reflects my years of hands-on experience, my ear for detail, and my belief that feel is just as important as sound. I’m not chasing trends—I’m building tools for players who care deeply about the connection between their hands, their instrument, and their tone.

What is the SineWave Philosophy?

SineWave is about balance — between modern clarity and vintage feel, between engineering precision and gut-level inspiration. Every decision, from circuit layout to component selection, is made to serve the music. I don’t chase the past, I refine what works. My goal is to give players gear that disappears behind their touch and brings their voice forward.

Why SineWave?

SineWave amps aren’t mass-produced—they’re built one at a time, by hand, by someone who lives and breathes this craft. You’re not buying into a brand name or a marketing story. You’re investing in a tool that’s been designed with purpose, obsessively refined, and built to inspire. If you care about touch sensitivity, tonal depth, and gear that’s made to elevate your playing—not distract from it—then SineWave was built for you.