The Audio Store's Take on the 64 Audio Solo:

The 64 Audio Solo is a remarkable IEM featuring a 14.2mm planar magnetic driver, delivering an impressive blend of musicality and detail. With its elegant copper faceplate, lightweight build, and premium OCC copper cable, the Solo offers both style and comfort. Its W-shaped sound signature combines fast, clean bass, rich midrange vocals, and detailed, engaging treble. Whether you're a planar headphone enthusiast or an audiophile seeking lifelike sound, the 64 Audio Solo stands out for its balanced, natural tonality and immersive listening experience.

Introducing the 64 Audio Solo

The 64 Audio Solo is a revolution in portable high-end audio, offering full-range sound with a single planar magnetic driver. As the latest addition to the renowned tia™ line of UIEMs, Solo brings forward a rich heritage of innovation. By integrating groundbreaking technologies like Helmholtz resonators and electronic filters, it redefines sound tuning in single-driver IEMs. This remarkable design takes inspiration from past successes like the Fourté and Trio models while introducing new acoustic advancements to elevate the listening experience.

Planar Magnetic Driver: Precision and Detail

At the heart of the Solo is a 14.2mm planar magnetic driver, delivering remarkable transient response and high-frequency detail. Unlike traditional dynamic drivers, the planar driver’s diaphragm moves uniformly across the magnetic field, eliminating uneven movement and enhancing sonic precision. This ensures a full-range, high-resolution sound, usually requiring multiple drivers, from a single planar driver.

Helmholtz Resonators: Sculpting the Frequency Spectrum

The Solo introduces the world’s first Helmholtz resonators in an IEM, enhancing its acoustic performance. These resonators are 3D-printed into the sound chamber, precisely targeting problematic frequencies by resonating air at specific frequencies. This innovation provides a more controlled and refined high-frequency response, showcasing the true potential of planar technology.

LID®: Consistent Sound Across Devices

64 Audio's patented Linear Impedance Design (LID) compensates for electrical resistance variations that can occur when using different source devices. This ensures that the Solo’s sound signature remains consistent, whether connected to a smartphone, DAC/amp, or high-end digital audio player, preserving the intended sonic experience.

Apex® Core: Pressure Relief and Comfort

The Apex core technology integrated into Solo relieves pneumatic pressure, allowing for extended listening without discomfort. This design provides the listener with a natural, unoccluded feeling, enhancing spatial perception and delivering a highly immersive sound experience. The Solo’s ergonomic fit and balanced isolation make it perfect for long listening sessions.

Sound Signature: Dynamic and Immersive

The 64 Audio Solo delivers on the brand’s promise of musicality, balance, and detail. Its planar driver provides agile and precise sound reproduction, revealing subtle details within the mix while maintaining a cohesive soundstage. With acoustic notch filters and Apex core technology, the Solo’s high frequencies are expansive, while the bass offers substantial impact and deep sub-bass, creating a dynamic and textured sound experience.

Copper Eight-Braid Cable: Superior Connectivity

The Solo comes paired with an OCC Copper eight-braid cable, designed for low impedance and superior sound transmission. Available in both 3.5mm single-ended and 4.4mm balanced configurations, these cables ensure reliable connectivity while offering a durable, tactile feel.