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Guillermo Marin — Mixer, Sound Designer & Producer

Guillermo Marin working at the mixing console in EastWest Studios, Los Angeles

Los Angeles · Music and picture

Guillermo
Marin

Guillermo mixes records, film music and trailers, and designs and mixes sound for broadcast.

01 · Music

Hear what changes in the mix.

Five selected projects let the listener move between the original production and Guillermo’s final mix.

Original / final mix01 / 05

La Manera

Mar Gimenez · Mixed by Guillermo Marin

Before / final mix comparison







Selected records

Selected record work.

Mix engineering, vocal production, vocal arrangement and recording across recent releases and long-running artist collaborations.

Welcome single cover by Chaylin
WelcomeChaylin · Mixed by Guillermo Marin
Red Lights single cover by Chaylin
Red LightsChaylin · Mixed by Guillermo Marin
Glad I Met You single cover by Chaylin
Glad I Met YouChaylin · Mixed by Guillermo Marin
Lo Que Te Quiero Yo single cover by Chaylin
Lo Que Te Quiero YoChaylin · Mixed by Guillermo Marin
Palosanto album cover by Bunbury
PalosantoBunbury · Vocal production and arrangements
MTV Unplugged: El Libro de las Mutaciones album cover by Bunbury
MTV Unplugged: El Libro de las MutacionesBunbury · Vocal production, arrangements and choir direction
Expectativas album cover by Bunbury
ExpectativasBunbury · Vocal production and engineering · Latin Grammy-winning album
Ultrazul album cover
UltrazulMixed by Guillermo Marin

02 · Songwriting

Songs behind the records.

Guillermo’s songwriting runs from his own 13-song album, Despertar, to recent co-writes with Bunbury and songs recorded by Sergio Dalma, Tamara, Naim Thomas, Cortés and La Barra.

Cuentas pendientes album cover by Bunbury
Cuentas pendientesBunbury · Co-writer on “Como una sombra”
De un siglo anterior album cover by Bunbury
De un siglo anteriorBunbury · Co-writer on “La voz”, “De un siglo anterior” and “La cima”
Trece album cover by Sergio Dalma
TreceSergio Dalma · “Cuando crees que no te veo”
Perfecto album cover by Tamara
PerfectoTamara · “Esa que vale un sueño”
No tengo prisa album cover by Naim Thomas
No tengo prisaNaim Thomas · “Se rompe el corazón”
Delivery album cover by La Barra
DeliveryLa Barra · “No juegues con mi alma”
Buscando Héroes album cover by La Señal de Flint
Buscando HéroesLa Señal de Flint · Songs, production and mix
Despertar album cover by Guillermo Marin
DespertarGuillermo Marin · 13 songs written, arranged and produced

The selection moves from current Bunbury collaborations to songs recorded by artists who shaped Guillermo’s early catalogue, ending with Despertar, his own authored album.

03 · Film music

Score mixing for feature films.

Guillermo’s feature-film work includes mixing Federico Jusid’s score for Life Itself.

Official trailer frame for Life Itself

Life Itself · Official trailer

Life Itself

Score by Federico Jusid
Score mixed by Guillermo Marin

Feature film · 2018

Selected composer relationships

Guillermo has mixed film music for Federico Jusid, Roque Baños and Arturo Cardelús.

Portrait of composer Federico Jusid
Federico JusidComposer · Life Itself
Portrait of composer Roque Baños
Roque BañosComposer · Selected film work
Portrait of composer Arturo Cardelús
Arturo CardelúsComposer · Selected film work

04 · Trailers

Percy Jackson in Dolby Atmos.

The official Season 2 teaser for Percy Jackson and the Olympians was mixed by Guillermo in Dolby Atmos for Carrma, a Disney vendor.

Official Disney+ teaser frame for Percy Jackson and the Olympians Season 2

Percy Jackson · Season 2 teaser

Percy Jackson and the Olympians

Season 2 official teaser
Dolby Atmos mix by Guillermo Marin

Mixed for Carrma, a Disney vendor

05 · Broadcast

Sound design and final mix for broadcast.

Guillermo is credited as Audio Engineer on two Sports Emmy–winning FOX | FS1 technical teams. His broadcast work includes sound design and final mix for produced pieces that set up live games.

FOX Sports · Produced pregame pieces

Sound design
+ final mix

Guillermo works on the pieces that play before the game and establish its story. Each one combines editorial timing, effects, atmosphere, dialogue, music and a final broadcast mix.

Long-running FOX Sports collaboration · Audio Engineer

Sports Emmy statuette beside Guillermo Marin's Latin Grammy certificate for Bunbury's Expectativas
Sports Emmy trophy and Latin Grammy certificate for Expectativas.

Awards and credit

Two Sports Emmy–winning FOX | FS1 teams.

The photograph shows the Sports Emmy alongside the Latin Grammy certificate recognising Guillermo as engineer on Bunbury’s Expectativas, a Latin Grammy-winning album for Best Rock Album in 2018.

2023

2022 FIFA World Cup
Outstanding Technical Team Studio · FOX | FS1

Audio Engineer

2026

FOX MLB: World Series — Toronto Blue Jays vs Los Angeles Dodgers
Outstanding Technical Team: Sports Event · FOX | FS1

Audio Engineer

About Guillermo.

Guillermo grew up in Spain and came to Berklee College of Music on a full-tuition SGAE scholarship. He graduated from Music Production and Engineering in 2012 and built his career in Los Angeles across records, film, trailers and broadcast.

His credits also include songwriting, music production, vocal production and arranging.

Guillermo Marin teaching a music-production lesson for SecretosDeMezcla

Education

SecretosDeMezcla

Guillermo founded SecretosDeMezcla, a Spanish-language online education platform for music production that has served more than 6,000 students. Its courses cover mixing, mastering, production, songwriting and related audio skills.

Spanish-language music education · More than 6,000 students

Start a conversation

Tell Guillermo about the project.

A track, a score, a trailer cut or a broadcast piece is enough to begin. Share the current stage, format and timing, plus a private link when one is available.

Your details will be used only to respond to this inquiry.

Guillermo Marin · Los AngelesMusic · Songwriting · Film · Trailers · Broadcast