Sound
The goal with the low-frequency 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.

Refined Design
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 aluminium 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.

True Isobaric™ Configuration
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 low-frequency response.

Tia®
Tubeless In-Ear Audio is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. The tia system consists of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. Volür features two major elements of the tia system: the tia driver and the tia single-bore design.

Apex®
Air Pressure Exchange is a patented vent that releases air pressure in a sealed ear canal all while retaining standard IEM levels of isolation, enabling musicians and music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in four module variations for Volür: mX, *m12, m15, and m20. While it looks similar to many of 64 Audio's UIEMs, the internal construction of the Apex system is redesigned to maximize space for the LF bore incorporated into the mid-driver housing.

LID®
Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver-sets comprising this 10 driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency response, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound.