Mixing | Mastering | Dolby

164 Reviews (162 Verified)
HILL on SoundBetter

Audio Engineer and Music Producer. Selected Credits: Benny Benassi, Dillon Francis, Matt Sassari, HUGEL, Los Cadetes de Linares, Gabri Ponte, Dontcry, BCalm.

Xavier 'Hill' Collado is an Audio Engineer and Music Producer based in Barcelona.

He serves as the Owner/Operator of 'Hill House Studios' and holds the role of co-owner at Lazy Orange Sun Records.

Graduated from the London School of Sound, contributing to a vast portfolio that has garnered over 380 million streams worldwide.

Would love to hear from you. Click the contact button above to get in touch.

164 Reviews - 36 Repeat Clients

Endorse HILL
  1. Review by Charlie R.

    Hill did an amazing job mixing and mastering a house track of mine. Highly recommended to all! 10/10 A++++

  2. Review by Alex T.

    First-time mix & master with HILL, he did an excellent job and truly elevated the song. Responds quickly, perfectly implements your notes & feedback, and is very communicative throughout the process. Will definitely work with him again!

  3. Review by Callum M.

    I uploaded my mix to Hill and he got my master turned around before midday the next morning! Hill was professional, friendly and gave me details about every tweak he applied to enhance the track. He’s got the loudness spot on, while maintaining dynamic range.

    I will definitely use his services again for future projects.

  4. Review by Alberta Leong

    Swift communication and turn around!

  5. Review by KELAJAY


    Super nice, Sound quality is definitely there, he honors your changes and his turn around time is fantastic!

  6. Review by Anthony G.

    Always a pleasure working with HILL! Very knowledgable, professional and delivers quickly. I’ll be back 🤝

  7. Review by Marley C.

    The best, as always.

  8. Review by Anthony G.

    absolute pleasure to work with! very quick delivery and delivered exactly what I was looking for!

  9. Review by Bryan O.

    Easy to work with, professional, and delivered a solid energetic mix + master.

  10. Review by hjzon95n7wglk558e0nc6o7xq

    A great technique that took my work up a notch, and I can't wait to start the next job with Hill!

  11. Review by Rafael S. Faria

    Perfect job with clear communication and great result. Xevi was fast and replied the first revision in less then 24h. He grabbed all the details and made the changes according to the music needs. If you are looking for the best cost for professional results just hire HILL for your next song! I will definetely look for him on my next opportunities.

  12. Review by Joe Yancey @sojoemusic

    Top notch!!

  13. Review by Anthony G.

    Very prompt and professional with amazing mastering results with quick turnaround. Would absolutely recommend to anyone looking to up their sound

  14. Review by Anthony G.

    HILL mastered a track for me and did SUCH an amazing job. He really put the final glue on my track and made it complete. Working with him was a breeze and I look forward to working with him again in the future

  15. Review by Richard M.

    Hill is a brilliant mixer who is super easy to work with - he did a great job finishing up a challenging project for me and really brought everything together. Highly recommended!

  16. Review by Marley C.

    The best, as always

  17. Review by Charlie R.

    Xavier did a great job mixing a track of mine - great communication and quality product - highly recommended to all! Thanks Xavier :)

  18. Review by Chris W.

    It has been great to work with him! Brings your music to life by listening and acting on your requests, making for a smooth experience.

  19. Review by Anna and Bella

    Hill was super quick at getting back to us and willing to try any changes we requested. A respectable person to work with. Very happy with the end result!

  20. Review by Jirko
    by Jirko

    Great communication and flexibility, much appreciated as always!

Interview with HILL

  1. Q: Tell us about a project you worked on you are especially proud of and why. What was your role?

  2. A: You can find an example of a song called "Monster" on my samples. This is a track produced by an amazing artist based in NYC called Peter Mark Kendall. We was working together and I was the mixing and mastering engineer. Super great song with lots of original elements and very deep. Love it.

  3. Q: What was your career path? How long have you been doing this?

  4. A: I'm in the game since 2010, I started producing songs by myself with a super basic gear, then I was graduated from the London School of Sound and I've worked as assistant audio engineer at the Dairy Studios in Brixton (London) with clients like Florence and the Machine, Mabel, Tom Misch, Raye, Jess Glynne, Snakehips, Jessie Ware and many more.

  5. Q: How would you describe your style?

  6. A: Organic, warm and full of bass, original, I love a little bit of dirty and authenticity in the tracks that I make.

  7. Q: What do you bring to a song?

  8. A: Creativity and originality. I love experiment, go one step forward, I love be unique, trying to create my signature sound. I love to give mojo and vibe to my clients music.

  9. Q: What's your typical work process?

  10. A: First of all I listen the track, with a fresh ears, trying to understand which kind of feeling the artist wants to explain and how I can help to achieve it. Second, I spend a lot of time listening some references privided by the artist, then some minutes cleaning the project and making little tweaks on the volume and panning to get a great balance between the tracks. During the next step the magic starts.

  11. Q: Tell us about your studio setup.

  12. A: Industry standard gear all working and waiting for your music. Including Apogee Converters, Studer Tape machine for mastering, Yamaha NS-10M studio monitors, Neve Preamps, SSL EQ and Bus Compressor, Pulltec Emulation Tube EQ and all kind of top-grade digital tools.

  13. Q: What other musicians or music production professionals inspire you?

  14. A: My favorite mixers in the game are Jaycen Joshua, Chad Blake, Dave Pensado and Tony Maserati. I'm feeling really inspired by artists like Kendrick Lamar, Bon Iver, Thom Yorke, James Blake and Tame Impala.

  15. Q: Is there anyone on SoundBetter you know and would recommend to your clients?

  16. A: There are awesome engineers and producers that I've recently meet and they are super talented. I always recommend professionals from SoundBetter. Is an excellent hub to meet creative people.

  17. Q: What advice do you have for a customer looking to hire a provider like you?

  18. A: Write me a message, don't hesitate on this. Let's talk and see what we can do with your music. Can't wait to start to work! Your music will be ready to hit the world with the best results.

  19. Q: What type of music do you usually work on?

  20. A: Pop, Hip-Hop and Electronica, recently a lot of R'n'B, trap and huge variety of Urban Music Style.

  21. Q: What are you working on at the moment?

  22. A: I'm mixing and mastering a project of a Indie-Rock Band from Peru, also mixing couple of Trap and Soul Projects.

  23. Q: If you were on a desert island and could take just 5 pieces of gear, what would they be?

  24. A: Laptop, Ableton Live and ProTools, Sennheiser headphones, Neumann mic, UAD interface. Easy to use in a desert island, good results and easy to pack :).

  25. Q: Analog or digital and why?

  26. A: Hybrid is the formula that I'm using right now, the one that gives me the better results for the recalling of the digital and the awesome sound of the analog. I always run the tracks of my clients through hardware, for the warmth and the workflow.

  27. Q: What's your 'promise' to your clients?

  28. A: Top Chart Results and 100% satisfaction guarantee. I'll do my best.

  29. Q: Can you share one music production tip?

  30. A: Less is more, always.

  31. Q: What's your strongest skill?

  32. A: I'm a communicator and a Good Vibes maker. I think that the relationship with the client is one of the most important things. Also I'm a musician, so it's really easy for me understand the artist side.

  33. Q: What questions do customers most commonly ask you? What's your answer?

  34. A: If I'm available to work right now. Of course! I'm always available and ready to work hard. I love my job and I'm really grateful about it.

  35. Q: What questions do you ask prospective clients?

  36. A: The mood of the song and the inner meaning. Is crucial to me understand this two factors.

  37. Q: Describe the most common type of work you do for your clients.

  38. A: Mostly records that I love. Which includes all kind of electronic music, pop, hip-hop, trap, lo-fi and derivates.

  39. Q: What do you like most about your job?

  40. A: Is always different and very creative. I could do it 24/7.

  41. Q: What's the biggest misconception about what you do?

  42. A: The amount of hours that I need to get better skills.

  43. Q: Which artist would you like to work with and why?

  44. A: My dream is work with and unknown artist, mix their record and make a big success. From 0 to 100.

The Vid

I was the Mixing and Mastering Engineer in this production

Terms Of Service

- Mixing includes 1 free revision
- Mastering includes 1 free revision
- Editing and tuning not included (extra cost)
- Recalls and revisions are $10 each
- Refunds always 50%

GenresSounds Like
  • Harry Styles
  • Bizarrap
Gear Highlights
  • RME AD/DA Converters
  • PMC and Yamaha NS-10's Monitors
  • Avid Pro Tools
  • SSL Compressor
  • Slate Digital
  • Elysia Karakter
  • FabFilter
More Photos
More Samples
SoundBetter Deal

$120 single mix, mastering included.

  • I'm back!Sep 07, 2022

    I'm back in the studio after my summer vacations. 

    Fully operative and ready to go. 

  • Welcome Elysia!Mar 31, 2022

    Fantastic new gear adquisition.

    Elysia Karakter to give warmth and color to your music.

    It sounds amazing.

  • Dolby Atmos Mixing, now available!Sep 30, 2021

    miss the opportunity to mix your songs in Spatial
    Audio and bring to your fans the pleasure to hear your music with a
    true immersive experience, multidimensional sound and clarity.

  • Back from holidays!Aug 10, 2021

    Hi there,

    I'm back from holidays, since today the studio is fully operative.

    Can't wait to hear your music!

  • Mixing and mastering Whitney White's 'Definition'.Jun 15, 2021

    Excited to start a journey with Whitney White. A singer based in New York who is working on a new project called 'Definition' that will be released early this summer at The Bushwick Starr in New York.

    Here we go!

  • 100 positive reviews!Feb 09, 2021

    Reaching more than 100 positive reviews from artists around the globe.

    Thanks everybody!

  • New Website!Jan 03, 2021

    Check my brand new website.

    Minimal but you will find everything you need.


  • News SoundBetter March 2020Feb 27, 2020

    - Third song with Kenya Morrison, this time audio edits mixing and mastering

    - Mastering new Peter Mark Kendall's album. NYC based duo called Hickory