CD Mastering Studio and Audio Music Studios Production, Professional Mastering Engineer

HDQTRZ (pronounced Headquarters) Digital Mastering Studios has been the secret weapon behind record labels for years, creating the best sounding mastered tracks in the music industry. Send us your music and listen for yourself.

Master your CD to make it radio ready *** Have your CD optimized for radio airplay without that overly compressed sound! Click here to read more about Hdqtrz on the web. We also provide re-mastering and audio restoration services.

Click here to find out why award winning Earle Holder is considered among the top Professional Mastering Engineers worldwide. He is passionate about insuring your music sounds the absolute best. We specialize in all styles of music including classical, rock, hip hop, jazz, trance, techno, etc.

Hdqtrz Digital Mastering Studio is committed to providing their clients with the best sounding finished product ever. Get a free download of any music contract you need by clicking on our "Tips" link on the left.

Read a few testimonials

Our brother Professor Griff of Public Enemy has suffered a terrible tragedy. Please click here to read more.

Allow us to master a 45 second clip of your music free. Details below:

How to send a snippet to Hdqtrz Digital Mastering Studios (You may also use this process to upload your entire album)

Open your Internet browser.
Click Here
Add comments (telephone # ,notes, etc) **************PLEASE INCLUDE YOUR EMAIL ADDRESS*****************
Browse to your 45 second .wav file location on your hard drive and click “Open”.
Click the “Send It” button
You are done.

Hdqtrz Digital Studios will receive the download link and proceed to Master the snippet and return it using the same process.

You will will receive an email from yousendit.com that will allow you to download the Mastered snippet.

Call Earle Holder @ 404 643-8213 regarding any questions about the mastering process or send us an email and we will make arrangements to have your cd mastered.

Tasteful compression on individual instruments is fine but don’t normalize, compress, limit or eq your stereo mix at the output before you give it to me. The mixes should not peak over OdBFS and if they “look” soft on your editor after the mix-down - DON'T TURN IT UP

You can send (and receive) your project from anywhere in the world over the internet to Hdqtrz Digital Mastering Studios (we have a high speed line with lots of bandwidth allowing us to download your large .wav or .AIFF mix files.

Our clients benefit from the expertise of seasoned, industry professionals with more than forty years of industry experience.

HDQTRZ Digital Mastering Studios is owned and operated by Earle Holder, Professional Mastering Engineer, and Professor Griff, Producer and current member of Public Enemy for over twenty years.

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