Hear what they have to say.

Milen did a wonderful job with my song. The vocal I had sent him had a fair amount of distortion, but he was able to work miracles with it. He was also quite responsive to my notes, and turnaround time was super fast. Highly recommended.
Greg Luzitano
Really great service, very quick and professional. Milen's mixing skills are second to none and I'd highly recommend him if you're considering getting your mixing done through ITB.
Manuel Mason
Solo Producer
Working with In The Box Mixing & Mastering has elevated my production immensely, giving harsh electronic sounds a warm analog texture and vocals top-notch polish.
Dennis Nikov
In the box did a great job with mixing and mastering my tracks. Super timely as well, delivered when promised!
Excellent service & communication. Great sound quality & attention to detail. Also very professional and provides fast turn around.
good, price is not cheap but you get a good result.
Colin Brändle
Vanilla Muffin Switzerland
Milen is a true professional that cares about what he does and passionate about it. He's always on time, does what he promises and (the most important) is capable of getting through hard times when something goes not the way you planned. At the end, he will hone your songs and achieve the results you were looking for no matter what! Besides he is very talented and generous. He shares his comprehensive knowledge and educates you the way that makes you evolve.
Max Tetsoshvili
КМ Band
I've been working Milen and ITB for the past 8 months and it was one of the best decisions I've made with regard to my music and productions. Milen has taken my recordings from black-and-white to full three-dimensional color. His work is outstanding and, perhaps more importantly, he takes my thoughts and concerns into account when working and crafting the mix. If that wasn't enough, he works quickly and his rates are more than reasonable.
Shawn Conroy
Shawn Conroy/Jacklight Records
Great service. For me the best part was a willingness to do minor changes and get these right straight away. You can't argue with that.
Simon White
Lunar Glare
Yeahhh!!!! Beautiful, thank you very much, you Rock!!!
Kostis Chaveles
Fast, flexible and utterly professional. The best sound designer I know.
Ivailo Borisov
... thank you for your help in making this song sound excellent!
Artem Zakharchenko
Milen is an exceptional talent with excellent professional approach and understanding. He is, as I know him, always devoted to a superb quality of sound and satisfying his clients needs in the best way possible. His works are easily distinguished with analogue warmth and versatile,true sounding that many has acknowledged.
Ivan Dinev
Fraxys Ltd.
The quality of the sound is quite satisfying for the price of $99. If it can be described in words, I would use smooth, balanced, warm and thick.
A high-end sound crafted with passion and love for the music from the first to the last tone.
Kiril Galunski
Brilliant craftsmanship on the sound engineering chair right there. ITB's work brought a child-like amazement in me while observing the action. Truly, one of the greatest sound designers I know, deserving a golden "do not disturb" sign on their studio door.
Well balanced and crystal sound. Every detail is a thorough piece of work - tight, warm and clean. I recommend InTheBox to every producer who respects his own music.
Resonant Warrior
Hey, I'm listening to it now and woooow!! I'm really shoked in a positive way! Just... wow! Sincerely I don't expected a result like this!
Pietro Fadda
it was a pleasure working with you. I will definitely be using your services in the future.
Matan Hamish
from our drummer: "YES!!!" I think he likes it.
Adam SoRelle
It sounds incredible!!!! Thank you so much! I will tell everyone I know. I will never try to mix my own music again.
Frank Rios

Vanilla Muffins
Kostis Chaveles
RTÉ Television
Onion Production
The Curtain Entertainment
Frank Rios
Mark Kerry
Adam Baker