Mixing & Mastering Engineers, Producers & Songwriters who worked with Kastro
A collaborator with multi-platinum musicians and brands like UFC & BBC Radio 1, my services guarantee an unmatched experience. With tens of millions of streams and a state-of-the-art recording studio at my disposal, your music will resonate like never before. I look forward to working on your track, book now for an unforgettable sonic journey.
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Hello, I am Gang. I love to mix and master a song that you want it to be. Let me make your song sound better.
Hello! My name is Giancarlo Castro (a.k.a. Kastropolis) and I am an electronic music producer and mixing engineer.
Seasoned hard rock/metal drummer with 15 years of playing experience. Preformed on many EP/LP's with bands such as Archimage, The Legacy Hour, Edenborn, and many more. Self released EP in 2015, as well as preform covers on youtube often.
"Guillem Villa, Sound Engineering Professor at Microfusa -Barcelona- and freelance Producer, Recording and Mixing Engineer. Graduated from Berklee College of Music in 2018. ".
audio engineer of 7 years have recorded many artist and as an artist myself i can feel what your song needs to make it pop out
https://youtu.be/4p2Vcfy_7kU Example of my voice acoustically
Massive yet clear bottom end.
Crafting Sonic Excellence. Retro Sauce Audio specializes in crafting sonic excellence through precision engineering, captivating mixing, and mastering mastery. With a wealth of industry experience, I bring your music to life, ensuring it resonates authentically with your audience. Let’s collaborate to elevate your sound and make your music unforge
Recent Successes
"Alex is an incredible musician and producer! he can do anything you ask him to. From producing, to mixing, to playing amazing drums. Plus, he is an excellent person, super friendly and easy going. I would definitely t..."
Pilar Icazuriaga"Ryan is a true pro of the highest quality. Detail oriented with great taste and personal style. Looking forward to working with Ryan again soon!"
Luki"A pleasure to receive another fine bass track from this gentleman. Highly recommended!"
Rainer W."Alexis is an amazing singer and songwriter, she understood our needs and provided us with industry standard vocals and lyrics. We are happy and satisfied because she ensured revisions to be done exactly the way we w..."
Andrea S."Chris did a fantastic job!!!"
Tim"Awesome experience working with Jordan, very professional and excellent Drummer. The song sounds much better with his performance. "
Carlos.cruz"Rob is such a great person to work with. He's Ge very detailed and patient. He took all my notes and turned them into a reality; a great mix/master. I will recommend him any day for any mixing or mastering gig. He's t..."
Tim I."Kramer did a great job with a super quick turn around. He responded immediately and got the project done by the end of the same day I submitted it. Quality work."
Nolan T."Very prompt, good work quality as usual"
Pasupathi N."Fantastic experience. Uros is a true professional, who's attention to detail and dedication to deliver stand out. My 'go to' guy for all engineering needs. "
James Brighouse"Michael delivered a well played, appropriate piano part which followed my directions but also included a very well considered set of choices of his own. He also did it sooner than he initially though. Great work!"
Benjamin C."Highly recommended, really talented turntablist and was able to provide lots of different options and ideas for me to use in my song. I was looking for someone who could bring ‘next level’ turntable skills that can el..."
Casey H.
