It's a little weird that you have to search down through so many other facilities on Yelp to get to Bernie Grundman's--it's the one really world-famous mastering facility in LA. Not that there aren't many good ones, but Bernie Grundman's is at a different level entirely. Among the thousands of artists whose records Grundman's has mastered are Prince, Chick Corea, Ringo Starr, Tower of Power, Jimi Hendryx, James Taylor, Kate Bush, and The Doors--check out the much longer list of famous artists on the Grundman website.
So what happens if you're not famous? My experience, when we mastered my quadraphonic vinyl album there in June, 2021, was that my music was treated with incredible care. I'm just so happy with the result. I've been mastering my music for 50 years and never had a better sounding record. While they're not particularly cheap--you can always find someone to do anything for less in the recording business--they're a good value. We spent under $3,000, some measure of the cost having to do with the complexities of quadraphonic mastering. Highly recommended. read more