Frequently Asked Questions

MixByStos provides mixing, mastering, acoustic design, studio building, and room tuning, led by Christos “Stos” Tsantilis, a Grammy-nominated, multi-platinum engineer and acoustic designer. Related projects include StosLabs studio equipment and acoustic work, Velaris One mastering speakers, and X.Stos power distribution.

MixByStos is based in Brooklyn, New York, and works with clients across the U.S. and internationally. All mixing, mastering, and consulting services are available remotely.

Stos works with major labels, indie artists, post-production teams, commercial studios, mastering engineers, producers, and home-studio creators. Whether you’re a global artist or a first-time builder, services are tailored to your goals.

Yes. Remote mixing, mastering, consultations, and full acoustic design can be delivered globally. File delivery and communication are handled securely and efficiently for international clients.

If you’re unsure whether you need mixing, mastering, room tuning, acoustic design, or speaker solutions, Stos can guide you. A short discovery call or message will determine the best path based on your project and goals.

Christos “Stos” Tsantilis is a Grammy-nominated, multi-platinum mixing and mastering engineer, acoustic designer, and studio builder with 35+ years of professional experience. His work includes projects for NBC’s Saturday Night Live, Universal Music Group, Steve Miller, Q-Tip, and Daniel Caesar. His services span mixing, mastering, studio design, and stereo and Dolby Atmos room tuning.