Built from the studio, not the boardroom.

Hi, I'm Spencer Anderson, founder of Extendo Audio.

For the past 10 years, I've worked as a producer, recording engineer, mixing engineer, and mastering engineer across a wide range of genres—from rock and metal to hip-hop, R&B, EDM, and pop. Along the way, I've had the opportunity to contribute to projects that earned Platinum certification and a Latin GRAMMY nomination, experiences that shaped how I approach both music and audio technology.

Working with artists every day taught me that the best tools disappear into the creative process. They shouldn't slow you down, overwhelm you with unnecessary complexity, or cost hundreds of dollars just to get professional results.

That's why I created Extendo Audio.

Every plugin is designed from the perspective of someone who depends on these tools every day—not just someone who develops software. The goal is simple: create plugins that sound exceptional, feel intuitive, and help creators stay focused on making music.

Our Mission

At Extendo Audio, our mission is to build professional audio plugins that are affordable, effective, and inspiring.

We believe every creator deserves access to high-quality tools without paying premium prices or navigating overly complicated interfaces. Whether you're producing your first song or finishing a commercial release, our plugins are built to help you work faster, mix with confidence, and unlock your creativity.

We're committed to combining studio-tested workflows with thoughtful design, delivering tools that are powerful enough for professionals while remaining accessible to anyone passionate about making music.

Built for creators. By creators.