304 MASTERING is a professional Audio Mastering facility for musicians, producers and labels, using the web based in Sweden.

Our online service is convenient, no matter where you are in the world. 

With over 15 years of experience we will give our audio extra punch, clarity and volume as well as give them that final polished feel that makes them sound good on all systems.

We offer a free mastering for first time customers!

Send me a note through the contact button above.

My credits include

Gear highlights

  • SSL Buss compressor
  • API 5500 Dual Equalizer
  • Elysia Alpha Compressor
  • UAD-2 Mastering Suite

Genres I specialize in

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