Distinct Mastering
Freddie Harb at the desk in the Distinct Mastering studio
Mastering by Freddie Harb · San Diego

We make it sound distinct.

Billboard-charting mastering for artists, producers and labels. Loud without squashing, punchy without pumping, clear without harshness. Ready for streaming, vinyl and Apple Digital Masters.

Get your free sample Hear the work

Free sample: your whole track mastered, a private full-quality listen and a 15 minute call with me.

Before and after

Hear the difference.

Switch between the mix and the master. Turn on level match and both play at the same loudness, so you hear the mastering, not just the volume.

The before and after player loads here. Listen on YouTube in the meantime.
2×
Billboard #1 Dance
860
Credits, 677 of them mastering · Muso.ai
Top 2%
Mastering engineers · Muso.ai
25+
Years in the music business
ADM
Apple Digital Masters certified
Muso.ai figures as of October 2026. Not every credit is mastering work.
Services

Six services, one standard.

Every delivery tuned by ear and ready for release on any platform.

Not sure which? Book a free consult
01

Stereo mastering

The final step before distribution. EQ, compression, stereo imaging and limiting so your track plays right on every system, delivered with proper metadata.

02

Stem mastering

Send 5 to 10 stems for precise control over drums, bass, vocals and FX. Far more surgical than stereo when the mix needs targeted work.

03

Vinyl mastering

A master built for the lathe, so your record presses without distortion or skipping. Cut with the full set of analog-era techniques.

04
Certified

Apple Digital Masters

We're an ADM-certified studio, so your song can be mastered and approved to Apple Music's own standard.

05

Mixing

Before the master comes the mix. We balance levels, shape frequencies, add effects and give every instrument its own space.

06

Production

Custom music for artist releases, commercial projects or DJ sets, from first idea to polished mix.

Freddie Harb seated at his mastering desk
Chief engineer

Freddie Harb. Built on decades of craft.

Distinct Mastering is led by Freddie Harb, a producer, composer and mastering engineer with 25+ years in the business. Billboard-charting records, major-label releases and independent artists all sit in the catalogue.

Every master is tuned by ear to be clear, powerful and release-ready, without losing the feeling that made the track worth cutting in the first place.

Better than 99% of SoundGym users
I keep my ears in training on SoundGym, the ear training platform for producers and engineers. My score sits in the 99th percentile. SoundGym, October 2026.
The work

Records you've heard.

Top streamed tracks, 2025Streams
01
Nipsey Blue
Trippy Ja, 24hrs · Mastering
6.9M
02
Listen to Me
Trippy Ja, Futuristic, 24hrs · Mastering
2.5M
03
Get Up
Tre Aces
338K
04
Windy City
HANGTYME, Will Plaze
305K
Select artists

Robbie Rivera · Donald Glaude · Saeed Younan · Trippy Ja · Tre Aces · Inaya Day · Freshcobar · 24hrs · Futuristic

Select labels

Enormous Tunes · Sirup · In Stereo · NOS Recordings · Late Night Jackin' · WHOSMUSIC

See every credit on Muso.ai
What artists say

Heard by the people who make it.

"I've had many people master my music throughout my 25+ year career, but none have been as professional as Distinct Mastering."
Saeed YounanProducer and DJ
"It sounds great. I do see the difference in your mastering!"
Robbie RiveraProducer and DJ
"It sounds great!!! I like it"
Donald GlaudeProducer and DJ
FAQ

Ask us anything.

What's the difference between mixing and mastering?

Mixing balances individual tracks in a song (like vocals, drums, and synths), while mastering is the final polish on the stereo file, ensuring clarity, loudness, and consistency across all playback systems and platforms.

Do I really need mastering if my mix sounds good?

Yes. Even great mixes benefit from mastering. It adds professional loudness, tonal balance, and ensures your track meets industry standards for streaming, vinyl, and digital platforms.

What format should I send my mix in?

Please send a 16, 24 or 32-bit WAV or AIFF stereo file, ideally at the sample rate of your original session. Leave around -3 to -6 dB of headroom and avoid master bus compression unless it's part of your sound. Turn off any limiting on the master bus.

Can I get a sample before I pay? FREE

Absolutely. Every first-time client gets one free sample: I master your whole track and you hear it in full quality in your own private player, before you commit to anything.

What's the turnaround time?

Most projects are delivered within 2 to 3 business days. Rush options are available if you're on a tight deadline, just let us know.

Hear your track mastered. Free.

Send your mix. I'll master the whole track, you listen in full quality in your private player, and we talk it through on a 15 minute call. Then take $50 off your first paid master, valid 30 days.

Get your free sample