our work

Alternative Rock

Sam Hart

Hope of Glory

Before mastering

Hip Hop

Kanye West


Before mastering


Tyson Motsenbocker


Before mastering


Nathan Menard

Happy To Be Yours

Before mastering


The Cost of Salvation


Before mastering

Pop Rock

Jared Evers

25 Years

Before mastering



On Fire

Before mastering



Fool's Heart

Before mastering


Our clients rave about us


NS10 Online Mastering Services
Genelec Online Mastering Studio
SSL Mastering Studio Rack
API Board Mastering Services
Mastering With Tape Online Mastering Studio
Waves Maxx Bass Mastering Online
1176 Compressor Mastering Service
Kush Audio EQ
SSL Compressor
Neve Stereo EQd

Mercury Mastering is the #1 industry standard mastering studio for achieving the big label sound required for all audio recordings.The combination of our Grammy award-winning engineers, our acoustically treated rooms, and our legendary equipment (both analog and digital) proves that we are the #1 leader in audio mastering.

Mercury Mastering has worked with the World's musical greats, ranging all over the board including legendary artists such as Chicago, Cheap Trick, and Kiss, to various modern artists including Kanye West, Victoria Justice, Cake, and P.O.D.

What we do...

One of the studios' expert mastering engineers will master your material, using legendary analog and digital equipment. We will take your final audio recording and apply professional mastering techniques using our highly experienced Grammy Award-Winning engineers and high-end mastering gear (EQ, Compression, Stereo Imaging, De-Esseing, and Limiters etc...) to deliver you a master with clarity, warm low-end punch, stereo depth, detail… and of course an optimum LOUDNESS level that meets industry standards.


Every album in your collection has been mastered by a professional mastering engineer in an acoustically treated room. If you want to sound professional and compete with the loudness war in the music industry, it is absolutely critical that you master your music. It's the most important aspect that makes your sound match with the rest of the music industry.






-LOUD music


FREE Mastering Preparation Advice

FREE Mastering Revisions

FREE Mixing Advice

FREE Sample

100% Satisfaction Guaranteed


(1 tracks for each song)

Standard Turnaround Time

2-7 Business Days:

1 Song:   $75

2 Songs: $150

EP Package (3-5 songs): $300

6 Songs: $350

7 Songs: $400

8 Songs: $450

9 Songs: $500

Full Length Album (10+ Songs): 600


Rush Delivery:

24 hour turnaround! 

Just add $25 per song to your order.


Stem Mastering

(3-5 tracks for each song)

Standard Turnaround Time

3-10 Business Days:

1 Song: $150

2 Songs: $300

EP Package (3-5 songs): $600

6 Songs: $700

7 Songs: $800

8 Songs: $900

9 Songs: $1000

Full Length Album (10+ Songs): 1200


Rush Delivery:

24 hour turnaround! 

Just add $50 per song to your order.


Need your songs mixed first? We'd be happy to help! Just scroll to the bottom of the page and contact us to tell us about your project.

Click "Start Project" below to upload your song and we will send you a FREE Mastered Sample


Mastering is the process where an experienced mastering engineer uses specially designed equipment and software to correct problems within each song. Mastering most importantly takes your audio to the next level and produces a final product that is "label ready." Our mastering engineers will adjust many variables including:

  • Adjusting Frequencies with Analog and Digital EQ
  • Balancing Left and Right Stereo tracks with Stereo Imaging
  • Compressing and Limiting the overall sound level to achieve a warm analog punch
  • Adding dithering
  • Establishing correct fades in and out of songs
  • Establishing Correct Spacing between each track
  • Adding ISRC Codes
  • Adding CD-Text Information
  • Creating DDP, BIN, or CUE Files for CD replication or duplication

Stem Mastering is a slightly more versatile option of normal mastering. We use a few "stems" (combined tracks such as drums, guitars, keyboards etc...) of your track to achieve the final master. You can send 3-5 stereo channels that we can tweak individually to make the absolute best sounding master. This is the best option for artists, engineers, and producers that have gotten their mix as far as they can take it but just need the extra bump to make it perfect.

Here are some different stems you can send us as well as an explanation of what we can do to each track:

1. Drums (for compression and clarity without affecting the rest of the song)

2. Bass (for getting a nice bass tone without affecting the rest of the mix with mud)

3. Guitars (we can roll out the mud in the guitars and bring presence without taking out the punch in the rest of the mix)

4. Vocals (we can get them sitting in the mix perfect if we isolate them with stem mastering)

You can use any stems you want. As long as you upload at least 3 and no more than 5.

It truly is the best way for us to have complete control over your song without affecting the mix you love so much.

A highly skilled Mastering Engineer will master your album. Each of us have worked with Grammy-Award winning artists and have achieved #1 status within the mastering industry.

We always do a sample for free. If you like what you hear, you can chose to move forward with the whole project by paying through our safe and secure website. We accept all major credit cards. After payment is made, you will be redirected to a page where you can upload your files through our website or mail. Once the music is mastered, high quality WAV files will be uploaded to your account on this website. 

If you are not happy with the mastering results, we will make FREE revisions until you are happy. There is no limit to this. We are so confident in our work that we ensure this will not happen.

Yes. We encourage our customers to send out their song to many different mastering engineers. We are so sure that you will like ours the best that we offer this free sample as a service.

Yes. Although we have full-time Mastering Engineers on staff here, we also provide mixing services. If you are unhappy with your mix, we can work around any budget to get your final product to industry standard quality. We usually average around $300 per song to mix if you have under 30 tracks in your song. But we work with any budget!

If you would like for us to mix your project, contact us by filling out the contact form below!

If your project is very time-sensitive, contact us and we will make sure it is done on time. In general, we guaranatee that your project will be finished in seven business days, but often we can get it done in less than three. Business days are Monday-Friday, excluding major U.S. Holidays. If you really need it done quickly, we offer a rush service for an additional $25 per song. With Stem Mastering, it takes a bit longer, so please allow for 10 business days maximum turnaround time, but we may finish in just 3-4 days. 

say hello

Contact us if you have any questions on Mixing, Mastering, or our Services. We'd love to hear from you!




1759 Oceanside Blvd. Ste C PMB 198
Oceanside CA 92054
United States
View Map

Mon-Fri: 9:00am → 5:30pm
Sat: 10:00am → 2:30pm
Sunday: Closed