T i m o t h y   J .  S t o l l e n w e r k  b .   1 9 7 2  

My name is Timothy and I have  been independently mastering music since 2003.  Essential to Stereophonic Mastering is a commitment to learn, evolve, and perfect my studio setup and skills in order to provide the best mastering services I can possibly offer.


I recognized audio engineering to be a real passion in high school after my brother and I recorded our band's music. After graduating, I invested in gear and later helped create a grassroots audio recording business with a friend, Kevin Arndt, called Treehouse in Waukesha, Wisconsin. With Treehouse in the mid-90s is when I got my first hands-on experience with professional audio engineering.


After moving to Portland, Oregon in 1998 my obsession with music mastering began. Pivoting from audio recording to audio mastering, Stereophonic Mastering was born in the dining room of a house I lived in. 

In 2013 I purchased my own home in North Portland and built a new studio on site running some of the finest in analog and digital technology.   


Over the years  have mastered more than 1,700 titles (including a Grammy nominated album) for musicians, artists and record labels both locally and around the world in a variety of genres from folk, gospel, rock, alternative, electronic, pop, classical, rap, etc..  


©2019 by Timothy Stollenwerk.  All rights reserved.                                                                            U   P   L   O   A   D

 est. 2003   Portland, OR 

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digital & vinyl mastering by timothy stollenwerk  Portland Oregon.