The Professional's Choice

Complete Audio Mastering Book Cover

Exceptional mastering by Gebre Waddell, author of
Complete Audio Mastering: Practical Techniques
published by McGraw-Hill Professional.

bx_Refinement Plugin Graphic bx_Refinement is a software plugin that was conceptualized, and the prototype programmed by Gebre Waddell. Check out the Tape Op review and YouTube video.
Frequency Chart Print The Frequency Domain is a print by Gebre Waddell found at Stanford University, Rupert Neve Designs and other notable locations across the globe.
ISRC Logo Stonebridge Mastering is 1 of 4 mastering studios in the world today with the authority from the RIAA to assign ISRC codes.
Microsoft Logo Stonebridge Mastering together with Microsoft Research is exploring audio watermarking technology with selected clients.

Send your recordings now with easy ordering, visit the upload page.

Rates and other information

Rate. $75 for singles, $50 per song for 2 or more songs.

Streamlined Ordering. Upload your recordings, complete the order form and make payment. Ordering is simple and takes only a few minutes with our streamlined Upload page.

Turnaround. Average turnaround is 4 days.

Approval. After mastering, we will digitally deliver your album so you may listen in the environment where you are most familiar.

Add-ons. Explore our optional add-ons.

Image Representative of ArtistI have been producing recordings for more than thirty years. In that time I have learned the tremendous value of a great mastering engineer for the final finishing touch. Gebre Waddell's touch on my work is nothing less than "Masterful".
-Mark L. Carman
Producer, Alan Jackson, Trace Adkins, Alabama, The Judds, George Jones

Image Representative of Artist"Gebre, you did a GREAT job mastering the 'Zip It' (Turk w/ Lil' Wayne and Juvenile) and Maybach Music's 'Small Change' w/ Rick Ross. Made the mixes STAND UP!"

-Nil Jones

Mixing Engineer, Young Avenue Sound

Image Representative of Artist"The Stonebridge Difference isn't just something they say, it's real."

-Khari Wynn
Public Enemy, Music Directo

Image Representative of Artist"The tracks sounded great. I sent them to the producer and he also loves them."

-Hope Clayburn

Live Saxophonist, has performed live with: Allman Brothers Band, James Brown, Gov't Mule, Maceo Parker, Soulive, DJ Logic and North Mississippi AllStars.

Image Representative of Artist" Gebre at Stonebridge Mastering did an amazing job with our record. He is also very bendable and jumps through hoops to make sure he can do anything and everything to get you exactly what your looking for!  Awesome to work with!"

-Anthony Basurto
Joan Red

Image Representative of Artist
"If you need it done right, send it to Stonebridge Mastering. If you haven't checked this guy out, you need to."

-Angelo Earl
Owner of Soulstreet Records

Image Representative of Artist"Hey Gebre... I mean it sounds clean and tight. Hats off and keep up the good work."

-Joshua Eustis
Nine Inch Nails - Things Falling Apart, Feat. Remix Artist; and Telefon Tel Aviv, Musician -- Referring to original work.

Image Representative of Artist
"It sounds good, Stonebridge Mastering definitely has a great sound quality."

-Keelyn Ellis
Puff Daddy's Record Label, Bad Boy, Producer

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Watch the bx_Refinement video with Gebre Waddell at Stonebridge Mastering.


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Copyright 2015, Stonebridge Mastering. All company logos are property of their respective companies which do not endorse Stonebridge Mastering in any manner, expressed or implied. Company logos are shown for the express purpose of illustrating the components of the mastering system, only. All music group images above are property of their respective owners and are shown here for the sole and express purpose of illustrating the affiliated band/group name of the quoted person only. Music group images do not, in any way, imply any endorsement, or views of the entire group or any managaing, owning, or contracting entity, agent, or affiliate thereof.

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