The Musicians Behind the Monitors

Meet the trio behind Plunge Audio's musical journey and find out how it all began.


It got to the point where the audiologist had to let Simon go because the lobby was always filled with musicians coming in, not to get a hearing test, but to chat with Simon in the back lab about IEMs.

Simon got his start working alongside audiology pros before deciding to kick off his own company.

Man's hands building IEMs under a spotlight with small tools surrounding.

2005

Back in 2005, Simon started out as a one-man show exclusively designing custom IEMs for musicians all over the world.

2018

In 2018, he began what turned into the better part of 5 years prototyping the perfect universal-fit IEM.

2025

Today, Plunge Audio is led by the trio of Simon, Justin, and James — all musicians with a combined 70 years of live music experience.

Meet the Team

Simon Fisk playing upright bass with his eyes closed.
01

Simon Fisk

Plunge Audio's founder and designer, Simon Fisk, entered the world of IEM’s via his career as a professional double bassist and his infatuation with design and craftsmanship. A four year, part-time stint in the hearing aid industry, seamlessly brought the two passions together and Plunge was born.

His curiosity for shape design and passion to create sound that captured emotion, led to custom IEM designs that captured the ears, and hearts, of users around the world. The success of his custom monitor designs, craftsmanship and CIEM expertise led to bringing a team together to continue the pursuit of unique, emotionally engaging IEM products in a universal-fit format.

Justin Kudding wearing IEMs and playing bass during live performance.
02

Justin Kudding

Enter Justin Kudding, a seasoned musical director for some of the most successful artists in the nation, Juno Award-winning producer, and CCMA Award-winning instrumentalist.

With two decades of music performance and studio experience, Justin knows precisely what serious IEM users demand. He played a key role in shaping the development of the Unity IEM and continuously puts them through the wringer on stages big and small, ensuring they deliver world-class performance without compromise.

James Bundy wearing IEMs and dressed in black adjusting controls on a mixing board.
03

James Bundy

Completing the trio is James Bundy, a seasoned recording engineer, mixer, and live-music tech extraordinaire. James' extensive experience has been instrumental in shaping the Unity IEM into a game-changer for both musicians and techs.

His focus on versatility, robustness, and effectiveness in any situation has been pivotal in every aspect of the Unity IEM's development. From tiny clubs to massive arenas, James' insights ensure that the Unity IEM exceeds the expectations of seasoned IEM users everywhere.

01

Simon Fisk

Plunge Audio's founder and designer, Simon Fisk, entered the world of IEM’s via his career as a professional double bassist and his infatuation with design and craftsmanship. A four year, part-time stint in the hearing aid industry, seamlessly brought the two passions together and Plunge was born.

His curiosity for shape design and passion to create sound that captured emotion, led to custom IEM designs that captured the ears, and hearts, of users around the world. The success of his custom monitor designs, craftsmanship and CIEM expertise led to bringing a team together to continue the pursuit of unique, emotionally engaging IEM products in a universal-fit format.

02

Justin Kudding

Enter Justin Kudding, a seasoned musical director for some of the most successful artists in the nation, Juno Award-winning producer, and CCMA Award-winning instrumentalist.

With two decades of music performance and studio experience, Justin knows precisely what serious IEM users demand. He played a key role in shaping the development of the Unity IEM and continuously puts them through the wringer on stages big and small, ensuring they deliver world-class performance without compromise.

03

James Bundy

Completing the trio is James Bundy, a seasoned recording engineer, mixer, and live-music tech extraordinaire. James' extensive experience has been instrumental in shaping the Unity IEM into a game-changer for both musicians and techs.

His focus on versatility, robustness, and effectiveness in any situation has been pivotal in every aspect of the Unity IEM's development. From tiny clubs to massive arenas, James' insights ensure that the Unity IEM exceeds the expectations of seasoned IEM users everywhere.

Simon Fisk playing upright bass with his eyes closed.Justin Kudding wearing IEMs and playing bass during live performance.James Bundy wearing IEMs and dressed in black adjusting controls on a mixing board.

Enough about us—let’s get you sounding your best. Meet the IEMs built with you in mind.

Explore the Lineup