64 Audio Volür 10 Driver Hybrid IEM

Ushering in a new era of technological innovation, Volür is a 10-driver hybrid universal in-ear monitor (UIEM), building on the heritage of 64 Audio’s first high-driver count hybrid, Nio (released in 2020). The successful recipe of this hybrid platform propelled 64 Audio’s appetite for discovery, resulting in one of the most challenging and rewarding developments in 64 Audio’s history of pioneering industry-shaping high-end audio. Joining the ranks of 64 Audio’s other technological powerhouses, like U18s and Fourté, this small package is filled with an almost impossible amount of proven and novel acoustic science.

The pulsating heart of Volür is made up of two new custom 9mm dynamic drivers in a True Isobaric configuration, delivering unprecedented sonic capabilities in the low-frequency (LF) band. While 64 Audio’s direct radiating tia high-driver remains the criterion in high-frequency (HF) performance, 64 Audio’s new tia waveguide optimizes its efficiency while offering greater tuning control. The six low-mid and single high-mid balanced armature drivers carry through to Volür. Their implementation was wholly re-engineered to maximize internal space while integrating 3D printed acoustic tuning features.

It’s important to note that the outer shell remains the same size, while all significant structural changes occur internally. The faceplate now features a sleeker chamfer, seamlessly blending with the matte black-finished aluminum shell. The final cosmetic touch comes in the form of an homage to the original Nio: a dreamy purple abalone chip made from responsibly harvested New Zealand Paua shell.

What is soon to be a new benchmark in acoustic delivery, Volür is capable of visceral bass while leaving room for the rest of the spectrum to shine. The saturated mids continue to evoke a similar analog warmth found in Nio, while the highs propel it into the territory of some of the most resolving audio products in the world.

The goal with the LF response was to increase quality, not just quantity, and the dual isobaric drivers deliver both beautifully. Due to its distinctive damping qualities, you hear more of the music and less smear, in a sense lowering the noise floor to a darker background between notes/beats and allowing details to shine. There’s a more palpable impact, with subtle sub-bass information revealing the artist’s true intentions. This head-filling bass also allows you to experience a full sound at extremely low volumes, especially with a more isolating module like m20.

The familiar Nio mids, known for their rich character, maintain that signature quality, delivering an almost tube-saturated presentation. Volür’s unique response curve enhances that experience with holographic center imaging that really shines with vocals, making them feel as if they are floating inside your head.

The tia waveguide plays the biggest role in improving HF response since 64 Audio’s invention of the direct-radiating driver. The clarity presented by the HF band, and Volür’s unbelievably wide sound-stage, puts it in the same sonic resolution category as the flagship Fourté. This is a rare high-end audio product that bridges the gap between indulgent bass-loving and technical detail-oriented audiophiles.

64 Audio’s cone-to-magnet isobaric driver configuration consists of two drivers connected by an acoustically inert coupling chamber. One diaphragm is fully sealed off, while only the other contributes sound pressure. This complex application results in better damping, lower distortion, twice the power handling (because there are two coils and two motor structures), and extended LF response.

Because this iso-group needed to be wired in series, we worked with 64 Audio suppliers to create a new 9mm dynamic driver with an upgraded n54 magnet and 25μm PU/115°C + 19μm Ti Cone to increase sensitivity. To further shape the sound, we used a high-precision textile mesh acoustic low-pass filter (originally developed for Fourté Blanc).