One-of-a-kind horn and high-efficiency systems, designed and built for real rooms, real music and real people.

In addition to our core models, we design one-of-a-kind horn and high-efficiency systems for people who want something built just for them.

How you listen, where you live, and what you love in music become the brief for every custom build. We pay attention to your gear and the way you actually use your system — late-night jazz at low levels, rock on weekends, or all of the above.

From there, we design a complete loudspeaker system around you: drivers, cabinet proportions, tuning, and finish. No standard models, no generic voicings — every project is engineered as a one-off pair.

All cabinets are built and finished in our California workshop using honest materials and careful measurements on the finished speakers, then voiced by ear so they feel as alive as the music you put through them.

  • shakutoaudio logo

    Honest materials.

    Solid Baltic birch and real wood veneer, finished like furniture, not mass-market audio.

  • A large wooden speaker with a prominent cone, sitting on a beige carpet in a room with black acoustic panels and a window with curtains.
altec 811b horns

    Systems, not boxes.

    Every project is engineered as a complete loudspeaker system — high-efficiency drivers, horns and tuning working together for the kind of music you actually play.

  • A vintage speaker with a wood cabinet and a black speaker cone, featuring a silver, textured horn overlay on top. altec 811b horns

    Inspired by classics, built for now.

    We build on proven horn traditions and pro-audio know-how, then add contemporary simulation, DSP and measurement to turn them into modern hi-fi.

Start your custom build.

Tell us how you listen, what you’re using now, and what you’d like your next speakers to do. We’ll come back with a concept and a realistic budget range before anyone commits to a build.

You don’t need a technical brief — just a few lines about your system, your space, and your music are enough to start the conversation.