Mark Christensen is the studio owner and Chief Mastering Engineer at Engine Room Audio in New York City. Mark is known for mastering, producing and mixing music in the genres of rock, hip hop, R&B and classical. He has worked on hundreds of albums, eleven of which have been nominated for Grammy Awards as of 2022, with three wins. He has also mastered over fifty Billboard chart top ten hits and has been involved with 75 projects that have been awarded platinum or gold status by the RIAA. He has mastered material by Pop Smoke, The Killers, 98 Degrees, 50 Cent, Fergie, Trey Songz and many others. Mark is also a Director at the New York Audio Academy, an audio engineering school designed to teach and mentor students on how to record, mix, master and produce records that meet the music industry’s highest standards.