Hdqtrz Mastering Studios

I came into the project with already very high expectations, based on Earle's reputation...still, those expectations were far exceeded. The quality of his work is world-class. The process of working with HDQTRZ was efficient, personable, professional, and a joy overall—from start to finish. Earle went above and beyond...I felt like my album project—a deeply personal roots/Americana undertaking, 7 years in the making—was in the best possible hands. After the first round of masters was completed, Earle even went so far as to then re-master the entire project at his own discretion using a fully analog approach...because he felt (knew) it would better suit the source material than a hybrid digital/analog approach. I give HDQRTZ Mastering my highest endorsement.

We have worked with HDQTRZ for over 3 years for all projects that require mastering. Earle’s work is fantastic, and his response time is incredible. Our band has had entire albums mastered and returned to us in 1-2 days. Definitely recommend

I was introduced to Earle and Hdqtrz Mastering through my trusted record label associate, Mr Fitzroy Francis. For nearly 10 years, Fitzroy was tour manager for the legendary Reggae band Black Uhuru.Over that course of time Fitzroy developed a network of top the line professional musicians, producers and engineers. Earle Holder was one of the very first people suggested and I can see why. Hdqtrz has the ability to add layers of depth to everything they receive. I always feel like the track is taller, wider, more colorful as a result of his mastering technique.