“I’ll admit, I was skeptical about Aria at first – none of the projects that utilized the other automated mastering services currently available sounded anywhere close to being right to me – but when Colin brought me in, showed me how his system worked, and I heard the results, I thought, “Wow, this might actually work.” AND IT REALLY DOES. I’ve used it on several recent mixes and I’ve been very pleased with the results. More importantly, the clients are happy with the results. The big difference is the top quality analog mastering equipment used in the ARIA process. Your tracks aren’t just being run through some one-size-fits-all software preset.” 

-Phil Tan – 3x Grammy® Winning Mixing Engineer: Rihanna, Coldplay, Mariah Carey, Selina Gomez


In what is a troubling time in the mixing world where louder is almost always perceived as better it is difficult to sometimes do all you want as a mixer to a song. Maybe you have to pull back the attack on a kick or roll off some of the monster 808 because of how it will affect the overall volume when you bounce a reference to send out using the traditional digital limiting or maximizing method. Enter Aria. With its fully analog signal chain and ultra high end components the head room is so high that my hands are no longer tied. I can push the limits and still know the warmth and volume will be there. I almost feel like I’m cheating sending a mastered reference to a client. But let’s keep this between us!  

-Fabian Marasciullo – 2x Grammy® winning Mixing Engineer: Lil Wayne, Aretha Franklin, R. Kelly, Justin Bieber


“We’ve been getting our songs mastered by Colin Leonard for many years now. When he told me he was working on an automated analog mastering system, I was immediately intrigued. Being that he’s mastered many hit records and platinum albums, I couldn’t wait to hear how he taught a machine everything he knew. Now that I’ve tried it for a few months, I honestly cannot live without it! It not only delivers a loud (to your liking) and dynamic master, it really shows you a few things you could’ve done better in the mix! (great for producers!) So if you have the Professional Subscription it’s super easy to fix mixes. It’s dangerously close to a having Colin master a song manually with the fraction of the time and cost. I joke with him all the time, “The machines might have taken over!”” 

-Rook – Grammy® Award winning J.U.S.T.I.C.E. LEAGUE: Mary J. Blige, Nelly, Nas, Rick Ross


““I can’t stand all of these automated mastering services” … is something I USED to say. Aria changed my mind.  Colin has been my go-to mastering engineer for quite awhile now. So when he first told me about Aria, I knew it was going to be something extraordinary. And he definitely delivered. I now use Aria for every reference mix I send to clients, where before I preferred to send only unmastered references because I could never get the reference quite right. With Aria, we finally have an automated solution that retains the dynamics and excitement of the original mix, but still gets it loud enough to make the clients happy. This is not simply a software algorithm but a real analog mastering solution using top of the line equipment that rivals that of top mastering engineers around the world.”

-Blake Eiseman – Justin Bieber, Beyoncé, Usher, P!nk, Musiq Soulchild


“Aside from the fact that Aria sounds great, I think the coolest aspect is that it has personality. Which is a bit weird to say about a machine. It seems to have a sense of musicality. It’s so convenient and it makes me look really really good”

-Matthew Weiss – Arrested Development, Dizzee Rascal, Ronnie Spector


“In Audio Post we often have to move fast, and we often have to mix everything in the box.  High end analog signal flow or sending a mix to a Mastering Engineer is a luxury our workflow doesn’t always afford.  It’s not for a lack of care or budget, it’s for a lack of time.  As a Sound Designer and Audio Post Mixer, an Aria subscription makes sense.  If I’m working with premixed music that’s problematic, finishing a mix an hour before it airs, or have an agency breathing down my neck, with Aria I can now (for the first time) confidently drag and drop to an automated mastering service that I trust.  It comes back sounding much better than before, and it comes back fast – that’s all that matters to me.”

-Brian Rio – National Emmy® Award winning Mixing Engineer and Sound Designer


Great mastering is a necessity for producing quality music. However, the reality is that outstanding mastering services usually come at a high price, and, conversely, a high price doesn’t guarantee great mastering. As a mixing engineer for major labels and indie artists, most projects I work on are cost and time sensitive, with no or little funds allocated for mastering. Often, I accommodate these clients by either lowering my mixing fees in order to engage a great mastering engineer, or I just take over mastering duties to prevent the mix from being sent to subpar mastering engineers.

Here’s where Aria Mastering makes sense to me. Aria will help me get through situations like these by allowing me to quickly deliver genuine and great quality mastering that will rival the top mastering engineers in the market. The four types of mastering options provide flexibility and a vast range sonic possibilities, perfect for versatile mixing engineers like myself. Aria Mastering is a high-quality, value-for-money product that will get the job done for audio professionals, allowing you and your clients to reap highly satisfying results.”

-Matthew Sim – Engineer at Germano Studio NY (Desiigner, Pusha T, Theo Croker)


“Uploaded the tracks individually and I’m exceptionally pleased (and surprised) they not only came out consistent but sounding so rad. The width and what you do to the high end is particularly likable.

I felt compelled to tell you how important the ability to switch between ‘mindful’ mastering styles was. My rock band mix had pretty tight lows but open highs and being able to have quick revisions was exceptionally important. We chose D, but started with B. I like that it’s not genre based per-say, hence why I could only think to describe it as ‘mindful’ options. Regardless, super important that you offer this option and wanted to give you positive feedback on it.

I’ll be continuing to use this unless a client has a ‘serious’ mastering budget. It’s THAT good. Thank you again for such an awesome service!”

-Matty C – Beats


“ARIA Mastering is the Best Automated Online Mastering by Far, their Analog Mastering is way Superior than any other automated Mastering Service. One of the Great Options of ARIA is you have 5 Options to choose from and if one option is not to your likeing you may choose from any of the other options for free up to 14 days. The Sonic Sound Quality was very Surprising along with the Analog Warmth of the composition, I have even tried Real human mastering Engineers and this beat them out. Highly Recommended, I will use them again for my other Projects.”

-Trenton J Marshall Sr. – CEO/3 SHOTS PRODUCTIONS


“I love the results !!!!!! I know that Colin is a master at his art, I’ve had an album mastered by him few years ago, but I can’t believe that the automated mastering can sound this way. ‘l’l most certainly will be using it !”

-Jan M. (Aria User)


“Aria Master is the best price/quality online mastering the market can offer (Landr / CloudBounce / Maztr / eMastered).”

-Lhook Wavy (Aria User)