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64 Audio A4t IEM


The A4t is the entry point for anyone seeking the remarkable smoothness and extension of the tia™ technology. Built on the foundation of our successful 4-driver design, the new A4t delivers an immersive listening experience with a lively mid-range and powerful bass. Its sound signature is balanced and neutral, shining forth with a new level of clarity thanks to the tia driver and the tia single-bore that aids in removing unwanted resonance and distortion.

Featured in the A4t is apex™, a pneumatically-interactive vent that relieves fatigue-causing sound pressure inherent in other earphone designs. Also featured is LID technology, ensuring the A4t maintains its sound signature regardless of the source - perfect for musicians and music lovers plugging into a variety of equipment.

Like all 64 AUDIO Custom IEMs, the A4t monitors are customizable and are hand built from your uniquely shaped ear impressions. They are inherently noise isolating and are designed to work with a wide range of personal audio devices as well as all hard-wired and wireless monitor systems.



  • 64 Audio Personalized Protective Case 
    Cleaning Tool 
    Shirt Clip 
    48" or 64" Detachable Professional Cable 
    m20 or m15 apex Modules 
    Round Sticker


  • 30 day fit guarantee
  • 2-Year Limited Warranty