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  • Masterenzo at work
  • Masterenzo Mastering rack
  • Masterenzo
  • The rack
  • Masterenzo Mastering - the Golden Hour.jpg
  • Studio rack and desk
  • The mastering studio
  • Masterenzo working at his mastering studio

"premium mastering studio"

"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)

The corona virus

The virus affects us all but I'm happy to inform you that attended mastering sessions at Masterenzo Mastering are possible again.
A maximum of 2 people are allowed in the studio, with respect of the corona measures and protocol.

Other (unattended) mastering work will continue as normal.

Please have a look at the contact page to book your (attended) session!

Stay safe 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 will start to tell the story of your album or ep as a whole.

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

Why mastering?

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

Why Masterenzo Mastering?

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

Masterenzo Mastering has worked with artists like the John F Klaver Band, Phil Bee, Voncken, Simon Stokvis, Gery Mendes, The Legendary Orchestra Of Love and many others.
Other mastering work includes mastering of leaders for Dutch radio station "100% NL" and radio commercials for "Open Universiteit".
More info about the 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.

Music mastered by Masterenzo Mastering

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've made a Spotify playlist with tracks, albums and EP's, all mastered by Masterenzo Mastering.

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

Do take 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.

I encourage you to attend the session:

The costs for an attended session are exactly the same as an unattended mastering session.

Book your session easily by using the contact form at the bottom of this page!


Masterenzo Mastering stands out with a close, personal approach to each and every project.
The way I work is somewhat influenced by mastering icon Bernie Grundman, an American engineer who has mastered numerous 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 (no live shows anymore, I play in my living room) I very well know what I want to hear musically.
This makes it easier to translate your recording to the outside world, to your listening audience.

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.

The studio

The studio is located in an old house built in 1927 and breathes 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 analogue 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.

About Masterenzo

Masterenzo.pngMasterenzo is Renzo van Riemsdijk, born in 1973 in Ede (a medium sized town in the center of Holland).

After a chemistry study in Arnhem 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 lapsteel in many projects and bands, mainly pop, soul, 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.

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.


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

A specified price list is available on request.

You will get

  1. Feedback on your mixes. If you want me to listen to your mixes first: no problem. Just let me know by using the contact form and send me your files, preferably via WeTransfer.
  2. High resolution masters (24-bit)
  3. 16 and 24-bit masters for streaming services (Spotify, Deezer, Tidal, Apple Music, YouTube etc.)
    Many of the aggregators (party between artist and streaming service) accept both 16 and 24-bit files.
  4. Revisions of your masters, until you're satisfied with the end result. I Want you to be 100% satisfied.

If you want your music on vinyl, you'll be needing seperate files for the sides of your record and a track sheet for the pressing plant.
This doesn't necessarily mean that you'll need separate masters for vinyl. In most of the cases the original masters can also be used for a vinyl release.
Costs for compiling the files for vinyl are 30 euros for a standard 2-side vinyl record.

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.
Costs for 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!

Like to book a session? Drop me an email or use the contact form at the bottom of this page.

Some useful information

Preparing your music for mastering

  1. If you need a pair of fresh ears during the mixing stage: I'm more than willing to listen to your mixes and provide feedback.
    All that is necessary to provide 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. Print, render or bounce your tracks as 24-bit or 32-bit floating point data files (wav or aif), 16-bit or mp3 files are 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 any noise shaping.
  6. Don't forget to register for ISRC, it's free! Check the official ISRC site for more info. If you are Dutch, you can apply for an ISRC at Sena
    To get to know more about ISRC, take a look at the FAQ page.

Loudness, is it really that important?

The human ear is very sensitive to changes in volume. When a song is played one dB louder, many people choose this louder song to be the better sounding one.

But we have control over the volume knob ourselves. so we can play any song as loud as we want.
And: loudness normalization ensures that very track within a playlist is played at globally the same volume.

Actually, music mastered at less high levels contains more energy (transients, micro-dynamics) and sounds genuinly more lively when played at the exact same level as music mastered at very high loudness levels.

Loudness and Spotify

Without loudness normalization enabled each song on Spotify and its playlists will be played at its original volume.
Supplying a loud master will surely cause your music to be played louder.
But: as soon as loudness normalization is enabled, all songs will be normalized to the volume specified by Spotify (and other streaming services). The default setting is a playback volume of approximately -14 LUFS.
This will cause loud masters to be turned down in volume, resulting in less dynamics and less energy.

During mastering my focus lies not so much on volume, but on energy and dynamics instead.
Music is about a connection that can only get better when music is sounding good.

This is what Spotify has to say about loudness normalization.


Columns about loudness

I've written several columns about the loudness issue, among many other mastering related subjects.
I write my columns on a monthly basis for Rotterdam based music platform Popunie.

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

"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)

Mastering for vinyl

For a standard vinyl record you'll be needing 2 files, one for side A and another one for side B.
In many cases the masters used to make masters for streaming can also be used for a vinyl release.

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.

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!

More info about mastering for vinyl can be found on the FAQ page.

Vinyl Record

"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)

More info?


















































"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

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


Contact Masterenzo Mastering

Fill in the form and receive a personal quote

Book your mastering session

Fill out the form if you want to book a session and receive a personalized mastering quote based on 50 euros per track (excl. 21% VAT) or if you just want to leave me a message.

The more songs you want mastered in one batch or session, the higher the discount on the total price. Discount starts from 4 tracks.

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

Free parking

 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