Stereo Mastering for Streaming 

At Classic Master USA, stereo mastering is where four decades of experience, world-class ears, and cutting-edge technology come together. Founded by Carlos Freitas — an 8-time Latin Grammy nominated mastering engineer with 35 Grammy-winning albums and more than 150 Latin Grammy nominations across his discography — Classic Master USA has built its reputation on one simple principle: every track deserves to sound its absolute best.

Ranked #37 among the most-streamed mastering engineers in the world with over 75 billion streams across his discography, Carlos brings a level of experience and market validation that few engineers anywhere can match.

What is Stereo Mastering?

Stereo mastering is the final and most critical stage of music production. It is the process of preparing and optimizing your final mix for distribution — ensuring your music translates perfectly across every playback system, from streaming platforms and headphones to club systems and vinyl. A great master doesn’t just make music louder — it makes it clearer, more impactful, and more emotionally powerful.

Our Approach

Every project at Classic Master USA receives deeply personalized attention. We listen carefully to each track — understanding its genre, its energy, its intent — before making a single adjustment. Our approach combines analog warmth with digital precision, treating each song as a unique sonic world that deserves its own careful, informed touch.

Apple Digital Masters Certified

Classic Master USA is one of the first studios in Latin America certified by Apple as a Mastered for iTunes (now Apple Digital Masters) facility — ensuring your masters meet Apple’s highest quality standards for streaming delivery on Apple Music.

Our Process

  1. Critical Listening — We evaluate your final mix in depth, identifying every opportunity for enhancement
  2. Equalization — Precise frequency adjustments for clarity, presence, and balance across all playback systems
  3. Compression & Dynamics — Careful dynamic control that preserves the energy and emotion of your music
  4. Limiting — Optimal loudness achieved without sacrificing quality or dynamic range
  5. Format Delivery — Masters prepared for all major streaming platforms, vinyl, and broadcast

Artists Trusted Classic Master USA

Caetano Veloso · Gilberto Gil · Ivete Sangalo · Djavan · Lenine · Ed Motta · Andrés Cepeda · Silvestre Dangond · Marisa Monte · Maria Rita · Mayra Andrade · Roberto Fonseca · Omara Portuondo · Giulia Be · and many others across the US, Latin America, and Brazil.

Ready to master your music at the highest level? 📞 +1 954 261 7123 ✉️ contact@classicmasterusa.com 🔗 Book a session