64 Audio U18t Universal In-Ear Earphones

64 Audio

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  • Packed with an unbelievable 18 balanced armature drivers per ear, the U18t is our top-of-the-line reference in-ear monitor. This industry-first design pushes the limits of what a reference monitor can be with incredible detail, extension, and unmatched clarity across all frequencies with a powerful low-end and extended sub-bass - just like its custom counterpart, the A18t. The A18t is preferred by critical listeners in engineering, monitoring and mixing, and audiophiles.

    Each ergonomic shell is machined out of a solid piece of aluminium and finished with an elegant copper-patinated inlay on the faceplates.

    Unique technology
    Exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience.

    A tubeless design that reduces resonance for a transparent and lifelike sound signature.

    The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. The U12t features two major elements of the tia system: the tia driver and the tia single-bore design.

    The Tia driver is an open balanced armature speaker design for realistic resolution and transparency. By opening a balanced armature, the diaphragm becomes fully unobstructed, reducing resonance in the IEM and allowing sound to travel more naturally to the ear.

    The Tia Single Bore is a huge advancement in eliminating unwanted tube resonance. The large bore itself serves as a sound-shaping chamber and aids the tia high driver in delivering a linear and coherent frequency response. The short sound path provides remarkable high-frequency extension and smoothness. The large single bore also allows for easier maintenance

    Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer. Apex, or Air Pressure Exchange, is a pneumatically interactive vent that releases air pressure from a sealed ear canal. Apex comes in two variations, m15 (-15dB) and m20 (-20dB).

    When you seal a miniature speaker in an ear canal, the air inside becomes trapped. Apex relieves this air pressure, allowing the eardrum to move naturally, so you can comfortably listen longer.

    Freely moving air extends the soundstage and provides a more natural listening experience. It also preserves bass frequencies and helps the listener distinguish individual instruments.

  • • 18 balanced armature drivers per ear
    • Incredible detail, extension, and unmatched clarity
    • Anodised Aluminium Body
    • Tubeless design
    • Air Pressure Exchange

  • Driver Type/Count

    Eighteen precision balanced armature drivers

    Driver Configuration

    1 tia high

    1 high-mid
    8 mid
    8 low

    Frequency Response

    10Hz - 20kHz


    111 dB/mW @ 1kHz


    9Ω @ 1kHz


    Integrated 4-way passive crossover

    Isolation -20dB w/ m20 module, -15dB w/ m15 module
    -10dB w/ mX module