Mixing & Mastering Engineers, Producers & Songwriters who worked with Javier Herrlein
With my 15+ years of experience I always want to find new and challenging music to work on. Making a band or an artist achieve their goals is always a must. Mixes and masters aren't done till me and the client are completely satisfied with the results.
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You don’t know who I am, and you’ve never heard anything I've made, but let's make some good shit. If you want to know the types of things I’m into and whether we might work well together, listen to Grand Central Dispatch.
2x Full Sail University graduate. Universal Music Group and Def Jam Recordings credited. Trusted by melodic, rap, pop, and r&b artists to bring emotion and clarity to every mix, vibe matters. Not just mastering and mixing, but storytelling through sound. I help artists craft mixes to feel as good as they sound to translate across all platforms.
I like to keep up with the songs that are at the top of the charts and improve my songwriting techniques each day. I'm a 26 year old who creates catchy melodies and meaningful lyrics (in English or Spanish) adapted to each genre and song. My specialty is commercial music in general: Pop, EDM, urban music...
I am a DJ, Music Producer, Mixer, and Remixer - Open for collaborations, Dm your requirements.
Live drum tracking from someone who has shared the stage with Grammy winners, multi-platinum selling artists, America's Got Talent finalists, and world touring artists.
Signed music producer with 10+ years of experience and 500k+ streams. I've worked on a wide range of genres, ranging from Hip Hop to Indie Rock.
I design captivating soundscapes and original music that bring stories to life, turning every project into a rich auditory experience.
A growing young mixing engineer eager to help new bands/artists.
Recent Successes
"Excellent studio for mixing and master, very personal follow-up with nice ideas and taste. By far my best sounding track."
"This is top notch sound you can get on the planet, I'm working on my EP called 5012 and I had a song that had only one lead vocal with no single back-vocal nor adlibs with a strong beat but what Helik did to it is unr..."
"I worked with François Michaud at Wild Horse Studio and i liked a lot. I needed a woman singer for one song. He attended me fast, arranged the professional and recorded with high quality. I recommend! "
"Great work. Trustworthy fellow!!"
"François Michaud from Wild Horse Studio marvelously found the perfect sound for our music! Although our production has a variety of genders, he just managed to satisfy our needs by highlighting the particular features..."
"Jack Cole did a test master for me and it sounded beautiful, definetly and new client now and it the future. He does great work"
"Music has to be mixed and mastered by a professional engineer. Sefi Carmel should be your engineer of choice, no matter what your genre is. He took extra good care of my song "When A Man Loves Another" Listen for y..."
"Excellent - did as asked. Recommended"
"Prompt, professional, and patient. Sefi is pleasure to work with. He listens to the customer and delivers accordingly. Finally found the mastering engineer I've long searched for."
"very hard working team, attention to detail, skills and passion, I ended up with a very nice song unique production as I wished - Geeva"
"Gave me a clean, powerful and professional mix/master in a short amount of time! Would definitely recommend Big Bass Studios to anyone looking for a quality mix or master. Thanks for the good work!"
"Easy to work with, polite, and caught the vision of my record. This is the second engineer that I could say, knows what he is doing. God willing I will be sending him more records to mix and master for future projects."












