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Corona virus update

The corona virus affects us all.
The mastering sessions at Masterenzo Mastering will continue as normal with the exception that
attended sessions are no longer possible until further notice.

Let's hope this will end soon and the situation will return to normal.

Stay safe, stay inside and make great music!

Mastering at Masterenzo

Masterenzo Mastering is a premium mastering studio in Rotterdam owned by engineer Renzo van Riemsdijk.
Masterenzo Mastering does not do mixing or recording, it's mastering only.

After a mix is finished, good mastering elevates mixes to a professional level and your songs tell the story of an album or ep as a whole.

The equally important technical part of mastering is the delivery of proper music files for a digital release on platforms like Spotify, Apple Music, Deezer and YouTube or a physical release on vinyl, CD or music cassette. This also involves editing and compilation of music files (vinyl and CD).

Why mastering?

To me, mastering is all about improving the power, emotion and impact of your music and connecting the music to you, the listener!

Why Masterenzo Mastering?

With over 17 years of experience Masterenzo Mastering is capable of delivering those high quality masters that stand the test of time.

You can listen to some of the work I've done on the YouTube video page or check out the samples before and after mastering.
I made a Spotify playlist with tracks, albums and EP's, all mastered by Masterenzo Mastering.
A list of artists/clients I've worked for can be found on this page.

Masterenzo Mastering has fast turnaround times against a fair price to quality ratio.

Don't hesitate to contact me if you have any questions about what Masterenzo Mastering can do for your precious tracks!

If you'd like to request mastering and receive a personal quote, you can also use the request form at the bottom of this page.
I encourage you to attend the session:
The costs for an attended session are exactly the same as an unattended mastering session.


Masterenzo Mastering stands out with a personal approach to each and every project.
The way I work is greatly influenced by mastering icon Bernie Grundman, an American engineer who has mastered landmark recordings such as 'Aja' by Steely Dan, Prince's 'Purple Rain' and 'Thriller' by Michael Jackson.
His view, ears and mastering philosophy show an example of ultimate transparency, energy, musical impact and connection.

Being a guitarist (well, I don't play live shows anymore) I very well know what I want to hear musically. This makes it easier to translate your recording to the outside world, to the listeners.

My approach is to take the song with most energy and vibe as the basis for the mastering session. All other songs are lifted towards that same level of energy and vibe.

Born in the seventies I'm very much intrigued by the stunning sound quality of some of the recordings made in that era. Just have a listen to 'Rumours' by Fleetwood Mac and witness its pristine production quality and please consider: louder is not always better.

Have a look at the columns I write on a monthly basis for Dutch platform Popunie and find out how I look at mastering and how music plays a role in our daily lives nowadays.

Besides mastering I spend my days listening to music, preferably on vinyl or cd. I'm a big fan of chocolat, great coffee and cooking and I like to spend quality time in the great city of Rotterdam, accompanied by some good friends.

The Studio

The studio is located in an old house built in 1927 and oozes vibe and energy.
The room is set up with a living room atmosphere in mind and has a great sound. It connects to the outside world through beautiful stained glass windows.

Short signal path: a single outboard rack is filled with modified solid state and tube gear for maximum flexibility and power.
Analogue outboard gear is complemented with few plugins to enable processing not possible in the analog world: the beautiful marriage between analogue and digital....

Heart of the studio are the custom built speakers featuring Peerless and Vifa drivers and external crossovers. They are fitting the room perfectly and together with the Amphion Two15 speakers they make the perfect listening couple for those crucial decisions in the process.

During attended sessions it's important to give the ears some rest during a break in our garden.
Bakery Van den Berg makes great sandwiches for lunch and is located at only a 3 minute walk from the studio.

  • Studio overview Masterenzo Mastering
  • Masterenzo Mastering rack
  • The mastering studio
  • The rack
  • Studio rack and desk
  • View of the mastering engineer
  • Masterenzo at work

"Renzo has mastered the tracks of our first ep, to our fullest satisfaction!
The tracks have become a lot more dynamic, worth every euro. Renzo also is of great help in the production path, from ISRC codes until delivering the end product to the cd factory.
Our next ep and the album will be mastered again by Masterenzo Mastering."
Jasper van Vught, The Legendary Orchestra Of Love (Rock and roll)

About Masterenzo

Masterenzo.pngMasterenzo Mastering was founded in 2015 by Renzo van Riemsdijk (Ede, 1973).

After a chemistry study my musical career started back in the nineties by studying electric guitar at the Rotterdam Conservatory. During my study and after graduating in 1999 I played electric and acoustic guitar and a bit of lapsteel in many projects and bands, mainly pop, rock and singer-songwriter music.

My growing interest in the sound of recordings led to the beginning of my own (bedroom) mastering studio in 2003: the Masterenzo Audio Room.

After working at home for 6 years I started working at Rotterdam based studios like the Excess Studios (2009-2012) and the Real Music Room (2012-2015). With the experience gained at those studios I decided to build my own mastering facility in 2015: Masterenzo Mastering.


I write monthly columns about mastering for Dutch music platform Popunie, hoping to clarify many of the mysteries surrounding the black art of mastering.

In my columns I deal with non-technical issues such as how we experience music nowadays as well as the more technical stuff. (LUFS, loudness, dynamics etc.)


"Renzo is a true professional who delivers high quality, he is fast and he's very relaxed to work with. Tnx for the great job Renzo!"
Martijn Spierenburg, Spierenburg Music (Producer)

Mastering rates

Mastering at Masterenzo Mastering is based on a rate of 50 euros per track.

You will get

  1. Feedback on your mixes. If you want me to listen to your mixes first: no problem, let me know by using the contact form or send me an email.
  2. High resolution masters (24-bit)
  3. 16 and 24-bit masters for streaming services (Spotify, Deezer, Tidal, Apple Music, YouTube etc.)
    Some of the aggregators (party between the artist and streaming service) accept both 16 and 24-bit files.
  4. Revisions of your masters, until you're satisfied with the end result


The more tracks you want to have mastered, the more cost-effective it will become. Discount already starts from 4 tracks.

Please contact me if you have more tracks to be mastered (like an album or ep) and we'll work out the options fitting in your budget.

If you want your music on vinyl, files for the different sides of your record will be made.
Costs are 30 euros.

For a CD release I can make you a DDP fileset which can be sent directly to the CD replication plant.
Included in the DDP is a custom client player, allowing you to monitor exactly what is being sent to the CD replication plant. A DDP contains relevant information like ISRC-codes, track spacing and CD-Text.
The costs of making a DDP fileset are 30 euros.

Alternative masters (radio edits or instrumentals with identical settings) are charged with 20 euros per song.

All rates mentioned are excluding 21% VAT (value-added tax).

If you live outside the Netherlands but within the EU and have a valid VAT-number you don't have to pay the VAT.
If you own a business outside the EU the VAT is taxed in your own country.

In price there is no difference between an attended or unattended mastering session!

Some useful information

Preparing files for mastering

  1. If you need help during the mixing stage: I'm more than willing to listen to your mixes and provide feedback.
    All that is necessary to ensure an end product of the highest quality!
  2. Leave a few dB's from the 0 dBFS ceiling when printing mixes to stereo.
    Volume is not that important in the mixing stage.
  3. Do not use any leveling tools like limiters or normalizers on the stereo bus, unless they are a vital part of the sound.
  4. Never change the sample rate (kHz) of the files.
  5. Don't forget to register ISRC, it's free! Check the official ISRC site for more info. If you are Dutch, you can apply for ISRC at Sena
    To get to know more about ISRC, take a look at the FAQ page.
  6. Save your tracks as 24-bit (or 32-bit floating point) data files (.wav or .aiff), mp3 is not suited for mastering!
    When you want to send me 24-bit files it's best practice to use 24-bit dither as a final step before saving your final mixes. Don't use noise shaping.

Mastering for digital music services

streaming audio

Music streaming services like Spotify, Tidal, Deezer, YouTube Music and Apple Music use loudness normalization by default to ensure equal loudness of every track played.
Providing overly loud masters will only cause the streaming algorhythms to lower the overall volume of the tracks. This will result in softer sounding music with less dynamics and less energy.

Many of the streaming services use an integrated loudness level of -14 LUFS which is still louder than the -16 LUFS recommended by the Audio Engineering Society (AES).
It's not necessary to master music at an exact level of -14 LUFS since streaming services all use different methods to measure loudness.
Masters with attention to dynamics (loudness globally between -10 and -15 LUFS) are better sounding masters with more energy and more impact!

While uploading the audio files, the streaming service itself will perform the encoding to the proper codec.
Tidal HiFi and Deezer HiFi both offer lossless streaming of FLAC files (Free Lossless Audio Codec). Tidal has also partnered with Meridian's MQA (Master Quality Authenticated).
Spotify uses Ogg Vorbis while Apple Music, Tidal and YouTube Music use the AAC codec. Both of these are non-lossless (lossy) audio formats, just like mp3.

Have a look at the Spotify for artists FAQ page. It explains which formats are accepted and how Spotify handles loudness and normalization, very useful information!


Together we'll end the loudness war!

Let's put an end to the loudness war and let music be music like it was back in the days of vinyl and before the digital era.
I've written several columns about the loudness issue, among many other mastering related subjects, for Rotterdam based music platform Popunie.

The Music Loudness Alliance is a group of great audio technical and production experts led by Florian Camerer and consists of Florian and audio engineers Eelco Grimm, Kevin Gross, Bob Katz, Bob Ludwig, Ian Shepherd and Thomas Lund.

Their mission is to inform and educate the audio community about Loudness Normalization and suggestions on how to implement it on various platforms, such as computer music players and standalone audio players.

They've released some great white papers and recommendations to the music industry.

Below an example of what happened with Peter Gabriel's 'Sledge Hammer' during the loudness war. Which of the 2 will sound better?

"Our vinyl album “Good Vibes & High Tides” was mastered by Renzo at Masterenzo Mastering.
From the start the communication with Renzo was excellent and included very useable feedback on our mixes and tips on how to deliver the best mixes for mastering.
We chose to attend the session. It was a very relaxed yet focussed experience while the ears could come to rest by chilling in the garden.
He wanted us to be 100% satisfied with the end result. And we definitely are!
We very much recommend working with Renzo. He’s an absolute professional and just a very relaxed dude to work with!"
Sander Haagmans & Iwan Wijnen, The Whims of the Great Magnet (Stoner Rock)

Mastering for vinyl

For vinyl mastering two files will be made, one for side A and one for side B.
In general vinyl masters can be made from digital masters.

In some cases it could be better to make different masters for vinyl. It all depends on the volume, (the amount of) limiting and -to a lesser degree- sibilance and low-end stereo information.

The cutting engineer at the vinyl pressing plant is the one making final decisions and/or adjustments for a healthy transfer to vinyl.
More info about mastering for vinyl can be found on the FAQ page.

If you want to be 100% sure: only a test pressing can reveal any possible issues with a vinyl release. Please always consider a test pressing, it's well worth the extra money and effort!

Vinyl Record

"Masterenzo has lifted my end product to a higher level. All details and nuances in the mix have been given subtle accents and the songs have become an album as a whole with some extra drive and shine.
Thanks Renzo, see you again next time!"
John F Klaver, John F Klaver Band (Blues, Americana, Pop)

Apple Digital Masters

The Apple Digital Masters programme (formerly known as Mastered for iTunes) consists of a set of tools supplied by Apple to ensure proper AAC encoding of lossless Hi-Res 24-bit files.
The files are adjusted for the highest possible fidelity for playback via streaming or download on your computer, phone, tablet and Apple devices.

Masterenzo Mastering is approved by Apple to deliver files that meet the Apple Digital Masters standard.
More info about Apple Digital Masters? Read the paper!


"A driven professional who is able to lay down a beautiful sound and knows very well what the music is asking for."
Dina (Singer-Songwriter with West African influences)
Album My Own Way

More info?


















































"Since I met Renzo and his work, I realized how bad I was listening before."
P.H. Devos (Singer-Songwriter, Folk)

Contact Masterenzo Mastering

Fill in the form and receive a personal quote

Request mastering

Fill out this form if you want to receive a personalized mastering quote based on 50 euro per track (excl. 21% VAT) or if you want to leave me a message.
The more songs you want mastered, the higher the discount on the total price.

Please note that in price there is no difference between an attended or unattended mastering session.


Make sure you've read the guidelines for preparing files for mastering prior to uploading your tracks.

The easiest way to upload your music is via WeTransfer.

Turnaround time after payment is usually 2 or 3 days for single tracks.
To be sure: contact me first if you're working on a deadline!

Studio address

Masterenzo Mastering
Renzo van Riemsdijk
Schielaan 32 A
3043 HC Rotterdam
The Netherlands

 telephone.png    06 21 462 953

 envelope.png    renzo[at]



Chamber of Commerce Rotterdam: 24 34 28 39

VAT number: NL001919857B67

Renzo at Masterenzo Mastering studio

© 1973 Masterenzo Mastering | Rotterdam