Our Partners

Subtonic Audio

Subtonic Audio is a fellow boutique audio firm dedicated to pioneering innovative IEM designs and crafting new technologies tailored to meet the demands of audiophiles and musicians worldwide.

Symphonium Audio takes great pride in being the exclusive designated manufacturer for Subtonic's flagship products, including the summit-fi IEM; STORM. This stands as a testament to our unwavering commitment to high standards and exceptional craftsmanship.

Altalune Audio

Altalune Audio comprises a local team of expert cable craftsmen renowned for their meticulous attention to detail and unwavering passion for handcrafting audio cables.

Symphonium has proudly collaborated with Altalune Audio since the release of the Helios in 2021, working in tandem to fine-tune the sound quality of our products through innovations in cable design and construction.

Nightjar Acoustics

A passionate and devoted team of audio enthusiasts dedicated to creating extraordinary handcrafted IEMs and cables.

We at Symphonium are impressed with their meticulous attention to detail and commitment to craftsmanship and have partnered with them to manufacture products like the Singularity as well as collaborate on products like the Meteor.


Rossi&Wing is a venture co-founded by ROSSI and Zephon Wing. Notably, ROSSI isn't an individual but a name adopted by the R&D team, consisting of audio industry veterans from around the world.

Symphonium has partnered with Rossi&Wing to design custom Dynamic Drivers exclusively for our IEMs.

The Titan proudly introduces the first results of this collaboration.