Sky Onion Mastering

Sky Onion Mastering is located in the Sellwood/Westmoreland neighborhood of SE Portland, Oregon. The studio offers high quality mastering for CD, vinyl, digital, and cassette at affordable rates for independent musicians and record labels. If you're in the Portland area, I invite you to come take a look, listen to your mixes on my speakers and discuss your project. If you're out of town, send an email to or call me any time 503-679-7359.