Since it launched, 64 Audio's flagship IEM Fourté proudly sat at the top of the product range, influencing almost every aspect of the company's custom and universal products for 10 years. Now 64 Audio is ready to introduce Ocean: the new benchmark in portable high-end audio.

Ocean is fundamentally a 6-driver, 4-way system, characterized by a neutral sound signature and impressive mid-range realism. With the same technical performance 64 Audio products are known for, Ocean presents a wide soundstage, excellent separation, and full frequency clarity. Low-frequencies are reproduced by two custom dynamic drivers configured in a true isobaric arrangement that provide powerful and exceptionally clean low-end. The mid-range is rich and present, leaving nothing to be desired. Upper mid-range is critical to expectations of realism in an IEM: too low and things sound distant and lost, too high and it's shouty and harsh. Ocean continues 64 Audio's tradition of striking a perfect balance. Ocean features one of the very few additive tuning mechanisms in UIEM design: 64 Audio's remarkably effective tia waveguide. Further refined with the company's recently patented meta-material, and combined with the tia™ high-driver, Ocean renders high frequencies in a way that sounds lifelike, natural, and pleasant.

Presented in a Champagne Copper color aluminum shell and machined faceplate, the design itself is inspired by aeolian ripples: geological patterns formed in sediment, shifted by the movement of wind. The inclination towards a minimalist design is in keeping with 64 Audio's brand identity as well as an intentionally diametric response to current design trends in the market. Ocean is the ultimate tinkerer's UIEM and the next volume in 64 Audio's anthology.

64 Audio knows from experience with casual listeners to the most discerning world-class performers that there's a range in low-frequency response preference. This is further confirmed by all available research into headphone neutrality targets. This is why Ocean allows listeners to choose between four back-vent filters, giving a roughly 8dB range in LF sensitivity without affecting isolation.

While low-frequency response has a range of preference, interpersonal HRTF variation means that sensitivity to high-frequencies differs based on the acoustic impedance of individual anatomy. Ocean's single bore has been redesigned to accommodate a removable stainless steel "tia" screen which comes in two options for high-frequency sensitivity. This can either be useful to tune Ocean to a listener's HRTF, or as a mechanism to make adjustments for changes in source material.