Elevate Your Sound

John “LJ” Montes is a music producer from Los Angeles, CA currently working from his home studio in Ontario, CA. LJ has been an audio engineer for over 14 years and can Mix, Master or Record your next project! Book your next session with John and work with an experienced engineer to realize your unique sound. Together we’ll collaborate throughout the entire production process to develop a final recording you are proud of and which your fans will enjoy.

Studio Services

From his home studio John offers high quality mixing and mastering. Video producers can also have their audio enhanced as well. Vocal and direct instrument recording can be done at the studio. For live recording sessions LJ has other studios he can work from, please contact with more information about your project so we can go over details.



Mixing music is an art form and can also be an extension of the song production. Using modern mixing techniques LJ can bring your song to life. Song files can be brought to the studio in person or sent over the internet.  Clients can request a free sample of one song to be mixed. John will mix the song and send thesample so you can hear what your song will sound like before you pay.

Recording Studio


Create and capture your music with an experienced professional and the latest recording technologies. High quality vocal recording can be done at the studio. Direct recording can also be done here. Keyboards, synths, MPC and guitars can be recorded directly to the computer. Mobile recording for live music and other events is also an option.  Click the link for information on the equipment used at the studio.



Mastering is the final stage of the recording process. My mastering chain has many stages of fine tuning. I will take the time go through each stage to make sure your mix is as loud and clear as possible. Your mix will translate beautifully on different devices and sound systems. If you have multiple songs I can do a sample for free.

Audio Equipment


John can help with song production in a variety of ways, depending on what the song needs. Vocal production is one aspect, from compiling vocals and assembling the best takes to fit the song, to helping with the writing process and suggesting harmonies to add to the vocal tracks. There are many ways to improve vocals. LJ can work on the songs arrangement and even create a new song if that is what the artist needs. LJ has other producers that he works with if new music is needed.

Mix Samples

On Air Sign

Studio Hours

Mixing & Mastering

Available 24hrs

Recording Hours

Mon - Fri: 9am - 9pm
Sat: 10am - 10pm
Sun: 10am - 9pm

Contact Us

Ontario, CA

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