“I was deeply impressed by the clarity of the voice, the depth of field, and just the quality of the recording itself very much! You are an outstanding sound engineer!”

Al Schmitt

20-time Grammy-winning engineer

“Daniel does awesome recording and mixing – with such an incredible array of artists. This stuff sounds wonderful! So big and open … an incredible, amazingly talented engineer.”

Eric Valentine

Queens of the Stone Age, Slash

“It's really spectacular. Daniel has done a fantastic job with the mix!”

Jonathan Allen

Senior Sound Engineer, Abbey Road Studios

“Daniel Dettwiler is one of the top engineers on the planet. Incredible ears on top of being one of the nicest guys you will ever happen to meet. Much respect!”

Casey Dowdell

Bricasti Design

“Oh, I loved it!”

George Massenburg

Engineer and inventor of the parametric EQ

“Daniel Dettwiler is a polymath: a professor of sound engineering at Zurich University of the Arts and Jazzcampus Basel, a world-class producer, mixing and mastering engineer – and a generous sharer of his engineering knowledge.”

Eric Valentine

Undertone Audio

“Excellent explanations, top-level pedagogy. The concepts introduced are far more concrete and have led to much more tangible progress in my mixes than the hundreds of hours I've spent watching Mix With The Masters videos.”

William L.

Mixing Bible

★★★★★

“I've been an amateur producer for around 10 years. This workshop alone feels like it has fundamentally changed the way I will mix from now on. It's a lifesaver for my music.”

Christian P.

Mixing Bible

★★★★★

“What impressed me most was the remarkable prioritization of what truly matters in music reproduced in stereo. A true lesson, very inspiring – even for a professional.”

Gilles A.

Mixing Bible

★★★★★

“I had the feeling that he woke me up from a deep sleep. Definitely worth the time and money.”

Milan L.

Mixing Bible

★★★★★

“The concepts made a lot more sense than in usual mixing courses: spectral balance, physical integrity and depth of field. To me, it's more of an 'engineer course', less of a 'mixing tips' course.”

Bastien M.

Mixing Bible

★★★★★

“This course does not show you techniques, it shows a way of thinking – and that made it awesome. I described it to my wife as a philosophical workshop.”

Gaspar Acevedo

Mexico · Mixing Bible

★★★★★

“You gave a name to concepts that a mid-level sound engineer senses but doesn't have the knowledge to fully define – physical integrity, spectral balance and above all, depth of field.”

Giancarlo Roberti

Mixing engineer, Italy · Mixing Bible

“Conceptually this course is top tier. The focus lies on the essential understanding of the craft and art, not so much on the trickery du jour.”

Niels

Mixing Bible

★★★★★

“Daniel's mixing course was an extremely important step in my development as a mixing engineer. It gave me very valuable insights into how to approach mixing. Truly excellent.”

Giancarlo Roberti

Mixing engineer, Italy · Mixing Bible

★★★★★

“While I was discussing depth in mixes with Rob Griffin (Wayne Shorter, Herbie Hancock, Julian Lage), he recommended Daniel's courses to me. I went down the rabbit hole and bought the Reverb Bible. Daniel has an encyclopedic knowledge of reverb types and techniques. I highly recommend it to anyone who wants to take their mixes and understanding to the next level.”

Harold LaRue

Mastering engineer of Grammy-winning and Grammy-nominated albums · Reverb Bible

★★★★★

“This course is the pinnacle of audio education! All the key aspects of stereo spatialization are covered, explained, illustrated and put into practice – by one of the very best experts in the field. It will be hard to do better!”

Gilles A.

Reverb Bible

★★★★★

“The Reverb Bible is probably the best masterclass about mixing I have ever seen – and above all about reverb!”

Clemens

Reverb Bible

★★★★★

“I really loved this course, especially the level of depth and variety of examples. A masterclass in creating expansive mixes.”

Harold LaRue

Mastering engineer of Grammy-winning and Grammy-nominated albums · Reverb Bible

★★★★★

“I've studied reverbs and mixing for years, and this course is the only one that has bridged the gap between reverb design and psychoacoustics at such a high level. The lesson about how we feel music rather than hear it has changed the way I think about mixing and music in general.”

David

Reverb Bible

★★★★★

“Never ever has anyone explained the whole picture of reverb design to me like this. So cool! The Reverb Bible opens up entirely new worlds – I've gained a completely different understanding.”

Lorenz S.

Switzerland · Reverb Bible

★★★★★

“Incredibly well-founded and informative. The concepts on depth of field are mind-blowing! This course builds directly on the success of the Mixing Bible – and raises the bar even higher. Outstanding.”

Adi R.

Switzerland · Reverb Bible

★★★★★

“I've taken way too many online courses – but none of them comes even close to this one! Thank you so much for this incredible openness. I can only highly recommend it!”

Martin

Reverb Bible

★★★★★

“Starting with concept, then proving it with examples is a far better structure than any other video lesson available. Other 'tutorials' just pull up a plug-in and twist some knobs without explaining why.”

Darren Jorde

Reverb Bible

★★★★★

“Extremely good explanation – for me the best one yet! I really feel like I'm a personal student of Daniel when I'm watching his courses.”

Gregor S.

Austria · Reverb Bible

★★★★★

“The examples in lesson 1 are very inspiring. I have never heard such depth in a mix before.”

Jeroen B.

Reverb Bible

★★★★★

“The most practical and complete course I've seen.”

Aljoša

Reverb Bible

★★★★★

“Wish I had this when starting. The philosophy matters most to me before I start tweaking any parameters.”

Napat S.

Reverb Bible

★★★★★

“I really enjoyed Daniel's course. The level of detail is amazing. Thank you for showing both the analog and digital approaches. I enthusiastically recommend this course.”

Harold LaRue

Mastering engineer of Grammy-winning and Grammy-nominated albums · How To Mix a Jazz Trio

★★★★★

“Incredibly instructive! Two complete mixes – one analog, one digital – make it even more fascinating. Getting such transparent access to every single step, including all the hesitations along the way, is priceless. An invaluable, hands-on lesson!”

Gilles A.

How To Mix a Jazz Trio

10/10

“Crazy – you watch courses and YouTube tutorials for years, then you watch Daniel's courses and hear so many things you've never heard before. The Mixing Bible opened my eyes about mixing like no other course.”

Tomas V.

Germany · Mixing Bible

10/10

“I've always felt like this was a hidden science and art form mixed with trial and error. When a master has the answers and gives them to you, you don't have to look anymore – you now have control! I am so grateful. You have changed my life!”

Jeff G.

10/10

“1000s of hours of bad YouTube over 20 years that did not get me any further. These courses changed everything!!”

Frode M.

10/10

“For a 'real music' musician and part-time sound engineer like me, Daniel's teachings are extremely valuable. They're the golden nugget hidden in a sea of so-called educational material that's just infomercial in disguise.”

Alexandre T.

10/10

“Daniel's courses are high-level knowledge that only a few people are talking about and you will not find in any other audio engineering course. I was blown away by his skill set and mixing techniques. Never experienced something like that.”

Tomas V.

Germany

10/10

“Daniel absolutely distilled the essence of sound recording – what an engineer attempts to accomplish, and why.”

Guy B.

10/10

“Incredible detail and information explained in a unique, comprehensive and understandable manner. Not only the practical methods but the theory behind them has been immensely useful!”

Lewis F.

10/10

“Detailed and advanced level information that isn't available anywhere else.”

Chris S.

10/10

“The defining of physical integrity in the Mixing Bible and the concept of depth in the Reverb Bible were game changers.”

Tim W.

“Your Mixing Bible course is by far the best I've ever encountered. Over the past 15 years, I've taken numerous courses, including masterclasses with Jacquire King, Craig Alvin, Billy Decker. Yet, your course outshines them all, delivering excellence that seamlessly extends to my hybrid setup.”

Paul Hinton

15 years of mixing courses behind him · Mixing Bible

“It's rare I fall head over heels in love with a teacher, but that's what happened with Daniel's courses. He is that rare combination of an amazing engineer and an excellent teacher. The Mixing Bible totally changed the way I think about music production and immediately elevated the quality of my mixes. Prepare for your jaw to hit the floor – it's worth the investment.”

David Payette

New York · Mixing Bible

“The best course and the most detailed one is the Mixing Bible from Daniel Dettwiler. Literally changed my life.”

Simon Bichbihler

Germany · Mixing Bible

“Daniel's the real deal – a killer engineer and top-notch teacher. His Mixing Bible is absolute gold. It leveled up my mixes big time. Get ready to be blown away.”

Zech Allen

New York · Mixing Bible

“This program is hands down the best I've ever done. It has significantly enhanced my understanding of objective listening, distinguishing it from my subjective taste, and has highlighted the key processes essential for achieving an outstanding mix.”

Paul Sayers

Mixing Bible

“Thanks to Daniel's method, which is sturdy, structured and logical, my approach to mixing has become so much more efficient and purposeful! Every young (or less young) mixing engineer and musician should take this course.”

Bernhard Duc

Mixing Bible

“The part about physical integrity and depth of field has been mind-opening. Now I see why I don't like the mixes I dislike. Now that I've seen your course, I realize why it sounds good when it sounds good.”

Marius H.

Mixing Bible

“Absolutely fantastic! Down-to-earth, well-structured, and keeps you hooked for more! You really helped me understand the reasons why I was never happy with my mixes before.”

Momchil Atanasoff

Pianist and composer · Mixing Bible

“The way you explain physical integrity as a concept is so simple, yet it was a real discovery for me. It is musical, not technical, working through imagination rather than meters.”

Bartłomiej Z.

Mixing Bible

“I've been thoroughly impressed with your teaching style right from the first minute. I've tried various resources, including Pure Mix, but your approach resonates with me. It's clear and understandable.”

Koen R.

Belgium · Mixing Bible

“I really enjoyed this, I think it is the best mixing course out there.”

Paul Hinton

Canada · Mixing Bible

“Big thanks for this fantastic course! Can't wait for your next courses, and in the meantime, I'll be rewatching this gem, the Mixing Bible.”

Piers G.

Mixing Bible

“I've been a sound engineer for almost 10 years. I just finished the Reverb Bible and applied the techniques to my mixes – I've never ever experienced such a living and breathing sound before. Well-shaped reverbs have become the game changer for my mixing! This course has been the biggest improvement of my journey as a sound engineer so far.”

Andreas Scholl

Sound engineer · Reverb Bible

“The Reverb Bible was the answer to a question I'd had ever since I started mixing: how to create a truly three-dimensional mix – not just with width, but with depth. Daniel unlocked the magic of reverbs for me.”

David Payette

New York · Reverb Bible

“Not only is Daniel Dettwiler a world-class sound engineer, he's also a fantastic teacher. This is the best course ever on reverb! Information, tools and tips that you won't find anywhere else. It's clear, precise, detailed, in a word: amazing!”

Christel Schlüchter

Switzerland · Reverb Bible

“The Reverb Bible unlocked the secret of how to make my mixes sound big. If you're ready to make your mixes sound 3D, this is the course for you.”

Zech Allen

New York · Reverb Bible

“It completely changes how you see not only reverb but, more importantly, depth of field. I now see the spatial placement of instruments as a holistic concept. A really immersive experience… Mil gracias!!!”

Gaspar Acevedo

Mexico · Reverb Bible

“I have no affiliation with this other than being a satisfied customer. I've been searching for quality information on this topic for a long time. For the first time, I can work from a place of intentional choices – not just throwing reverbs on and going through presets until something seems good.”

Sayat Nova

on Gearspace · Reverb Bible

“As a pianist and composer, I never thought I could mix my own music. Daniel's courses changed that: I recorded, mixed and mastered my latest production entirely by myself – and it received great feedback from Bulgarian National Radio. Thanks to his tips, the piano sounded so convincing that nobody noticed it was only a sampled piano.”

Momchil Atanasoff

Pianist and composer · Reverb Bible

“Daniel takes the time to explain and give examples. He uses recordings not only from great-sounding studios but also home recordings – and recommends where to invest for beginning engineers and musicians who record themselves.”

Paul Hinton

Canada · Reverb Bible

“Because you know what you're talking about – and you take the time to explain why, when and where.”

Reverb Bible student

“What I loved about this course is, again, that Daniel's skills as a teacher are the best of any mixing course out there at the moment.”

Paul Hinton

Canada · How To Mix a Jazz Trio

“It's hard to express enough how happy I am to have discovered Daniel. As a mixer and audio engineer, his expertise is probably impossible to match. His ability to breathe life into recordings is nothing short of magic. And in every single one of his courses you notice one thing: Daniel simply loves music.”

Florian Kren

Mixer and audio engineer, Vienna

“After two decades of mixing experience, I found myself yearning for a profound insight into the essence of crafting an exceptional mix. My quest led me through various courses, including MWTM, but alas, they fell short. Then I stumbled upon your reverb and mixing courses – a game-changer!”

Barnabas Koch

Two decades of mixing experience

“Daniel's courses really bring you a giant step forward. In a lot of other classes, you're just told, 'Do it like this or like that and it'll work' – but as soon as you try it on your own tracks, it just doesn't. With Daniel, you actually learn the theory and principles behind what you're doing.”

Gregor Mucha

Germany

“The courses are very well structured, with a wealth of real information inside. Especially for acoustic genres – jazz or similar – I never found anything better!”

Momchil Atanasoff

Pianist and composer

“I am extremely grateful for your instruction. I had always struggled to create 3D mixes, and your courses absolutely blew my mind!”

David Payette

New York

“This masterclass is truly enlightening. I've studied lots of courses and books, but they often only offered 'tricks' – this one helped me understand the 'concepts'.”

Marcello F.

Italy

“Thanks for the excellent course, Daniel. I've been learning mixing for years and your teaching is the best I've come across.”

David Tighe

Dublin

“There is nothing else available as thorough or as clearly taught as yours. This is in-depth, usable instruction of the highest level.”

Darren Jorde

“Happy to inform you that I have successfully mixed and mastered my first song. Without the guidance of your Reverb and Mixing Bible courses this would not have been possible.”

Suchit P.

“Thanks for being one of the few actually teaching great engineering – this is so much more helpful than 'Mix with the Masters', where they don't explain anything. I recommend anyone who reads this to go take his online courses!”

@MariJu1ce

YouTube comment

“The more I learn about mixing, the more I realize how important it is to understand how our hearing works – and I don't see a lot of engineers talking about this!”

@BeeSquared

YouTube comment

“I'm shocked at how much better the mixes sound with these tiny EQ moves. What sets Daniel apart is his analysis of the music, his skill at listening for the right things, and then choosing the proper tools to repair or enhance.”

spoos-trader

YouTube comment

“You have a way of understanding audio and a way of communicating which is transparent and straight to the point, and demonstrates your deep insights into the audio engineering world.”

Luke G.

“It was fantastic, easily the best mixing/engineer lessons I've ever watched.”

@pandemic7

YouTube comment

“Fantastic insights! It has truly revolutionized my approach to mixing.”

@dinmentor

YouTube comment