The UK’s largest outdoor spatial audio festival, Polygon Live LDN, has just released its full line-up, cementing its position as one of the hottest festivals of 2025.

In alphabetical order, Acid Pauli, ANONM, Âme DJ, Kiasmos (UK exclusive), nimino and Red Axes will now perform in 360º spatial audio, powered by L-Acoustics. These sensational artists join those already announced, who will perform between 2 and 4 May at Crystal Palace Park: Arooj Aftab, Cosmo Sheldrake, Gold Panda, Halina Rice, Jon Hopkins, Kaitlyn Aurelia Smith, Max Cooper, Nitin Sawhney, Photay, Tinariwen, Weval and Yīn Yīn.

This line-up features some of the most captivating and experimental artists of our time, each of whom has a passion for creating powerful, immersive and memorable music. Combine their expertise with Polygon’s sensational sound system, and a vast lattice of synchronised lighting above, and you have a transcendent experience that makes you feel more connected to the music, the artists, and those around you than any live event you’ve attended before.

Acid Pauli, who has performed on Polygon’s stage at Wonderfruit festival in the past, will bring his unmistakable combination of psychedelic, adventurous and musical techno to the space. ANONM’s set will be defined by his complex style and unorthodox mixing, and Âme DJ will bring his conceptually driven and uniquely visceral music, which has challenged music lovers’ expectations for years. Kiasmos duo Ólafur Arnalds and Janus Rasmussen will perform their only UK 2025 show at Polygon Live LDN, amazing audiences with their ethereal, minimalist piano melodies and soul-penetrating beats, while nimino’s fluid mix of house, hip-hop and garage music will enthrall. Rounding out the Sunday billing, Red Axes’s genre-bending grooves, hypnotic rhythms and unconventional sampling will transport audiences to new dimensions.

Polygon has also announced an emerging artist contest, Polygon Live Launch Pad, in partnership with Point Blank, which will grant the winner the opportunity to perform at Polygon Live LDN on Friday, 2 May.

What can audiences expect when experiencing these artists in spatial audio? In recent years, spatial audio has gained traction in headphones and home set-ups, recreating the way we naturally perceive sound by positioning different elements around and above the listener. But in live music – especially at concerts and festivals – it’s still a rarity. Outdoors? Unheard of.

“For several years, we’ve been fine-tuning a proprietary design to make our spatial audio events possible,” says Polygon CEO Nico Elliott. “The structure we’ve settled on prioritises a movement and fidelity in the music that truly has to be heard to be believed.”

For Polygon Live LDN, the team is taking things further. For the first time, Polygon is placing two dome-shaped stages side by side in a groundbreaking design, years in the making, that pushes the very limits of physics. Each dome will be 25m in diameter and 9m high, and rigged with almost 100 state-of-the-art L-Acoustics speakers that fully encircle the audience. Polygon’s ambitious sound engineers then use L-Acoustics’ suite of L-ISA Hyperreal Sound tools to spatialise the artists’ music, creating an unparalleled immersive experience.

“The main challenge we encountered as we started planning Polygon Live LDN was that we wanted to increase the audience capacity without reducing the quality of the audio, which is always our number one priority,” says Elliott.

Polygon couldn’t simply make the domes bigger, however. With speakers that surround the audience entirely, the team had to consider how long it takes for sound to travel from one side to the other. If they made the domes any larger, the music would fall out of time. “As a result, the two-dome design became our go-to solution,” he continues. “It’s allowed us to cater to more people while still delivering outstanding sound quality and keeping the experience intimate for our audiences.”

Add a complex web of synchronised lighting to these enormous structures, and you have a fully immersive audiovisual experience. The entire set-up will also be covered, ensuring you’re warm and dry, and providing the acoustic insulation necessary to keep the volume at a comfortable level.

If you’re passionate about music, about sound, and about having a first-of-its-kind experience that will blow your mind, Polygon Live LDN is for you. Tickets are available now via the Polygon website.