masters that last forever

I'm Sam Kumar Tandon, mastering engineer and owner of Rose Quartz Mastering, an analog mastering house in San Diego, California. I’ve mastered thousands of songs with artists like Paul Wall, Yvie Oddly, Plastique Tiara, Diana Garnet, Sakurako Ohara, and THRONE for labels including Sony Music Entertainment Japan, Alcopop! Records, Best Life Records, Totally Real Records, Gunner Records, and Victor Entertainment.

Mastering starts with a conversation. When you send me a mix, I listen to the music and to you, because a great master begins with understanding your goals for the record. Then I master the record in a space that is equal parts arthouse and laboratory: analog hardware in a studio obsessively treated for critical listening. My role is to protect what you’ve created and make it translate everywhere people will hear it, for years to come.

When a song is mastered properly, it simply sounds more like itself. Send me a track and hear what I mean.

BOOK A SESSION

“Sam is one of the very few mastering engineers I trust to enhance the music while still doing justice to the song, leaving my mix and productions intact. The clients are given the best version of their vision. Period.”
- Richie Beretta, Mixer & Producer (Beyoncé, Major Lazer, Diplo, A$AP Ferg)

“An acute ear. It’s the most important piece of gear that a mastering engineer has at their disposal. This is what Rose Quartz brings to mastering, and it's why I continually bring them my mixes. Besides having killer gear; I know that they will take the time to listen to the music and craft a master that always exceeds my expectations."
- Rich Stine from The Byrd House in Richmond, VA

GET IN TOUCH

SELECTED CREDITS

Artists

SELECTED DISCOGRAPHY

TIDAL PLAYLIST

Beauty Sleep - The Whole Damn Cake (2025)

HAI-LIFE & Yvie Oddly - Miss Messy Boots (2025)

Jasper Typical - RIDE AGAIN (feat. Jelani Aryeh & blonder) (2022)

T H R O N E & Protagonist - Singing Bear Speaks (2024)

Layth - I AM WHAT I AM AND NOTHING MORE (2026)

Diana Garnet - Spinning World (10th Anniversary Version) (2025)

Hidden Renaissance & OJ Mountain - I WILL NOT BE AT THE FUNCTION (2025)

kojima plus - delusions in the color, blue (2024)

Miles Alix - I Wonder... (feat. Evan Hatfield)

GET IN TOUCH

Rose Quartz Mastering is headquartered in San Diego, California. If you have a song or an album that you’d like us to master, please fill out this booking form and we will get in touch with you as soon as possible.

For inquiries unrelated to mastering, please get in touch with us directly via email, call, or text.

info@rosequartzmastering.com
+1 (619) 273-3151

“Righteous and Terrifying”

— Ryan McGroarty, producer & mix engineer in Belfast, Ireland
“Everything is so forward! The drums sit better than I ever thought they would. The kick and bass relationship is heavenly. It’s not too loud but the amount of depth is beautiful. And the vocals sit exactly where I want them to. It’s perfect.”

— Nicholas Kenton, producer & mix engineer in Nashville, TN
"Sam brings a relaxed professionalism to the studio. His chill attitude and a great ear for music make for an enjoyable and productive session. I'm definitely going to work with him again in the future."

— Tyler Faurot, musician & songwriter in San Diego, CA
“these are so clean wtf”

— Adam Cummings, astrophysicist by day, songwriter by night in Nashville, TN (Yes, he’s actually an astrophysicist)

masters that last forever

SELECTED CREDITS

Artists

GET IN TOUCH

“Righteous and Terrifying”

“Everything is so forward! The drums sit better than I ever thought they would. The kick and bass relationship is heavenly. It’s not too loud but the amount of depth is beautiful. And the vocals sit exactly where I want them to. It’s perfect.”

"Sam brings a relaxed professionalism to the studio. His chill attitude and a great ear for music make for an enjoyable and productive session. I'm definitely going to work with him again in the future."

“these are so clean wtf”