Quad Balanced Armature In-ear Headphones

  • Delivers amazing sonic realism with excellent sound isolation to leave you totally immersed in the music. Quad BA in-ear headphones deliver crisp, true-to-life audio through its high-precision four-layer driver design.
  • Equipped with the cutting-edge, quad balanced armature driver designed exclusively for the LS series - a design that achieves exquisitely deep, high-resolution audio.
  • The exclusive LS400 quad-network feature, with a four-layer driver design, produces sounds with exceptional precision and acoustic dynamism.
  • Improved high-frequency sound quality is achieved through a design that positions the high-frequency driver directly in line with the ear and through the titanium hybrid sound conduit.
  • By positioning the double-layer low-frequency driver parallel to the ear canal, a wide-ranging and accented bass sound is produced.

    • audio technica ATH-LS400iS
    • audio technica ATH-LS400iS
    • audio technica ATH-LS400iS
  • ATH-LS400iS Specifications (Headphones)


    Balanced Armature

    Drive method

    Quad Driver


    105 dB/mW

    Frequency Response

    15 ~ 20,000 Hz

    Maximum Input Power

    3 mW


    20 Ω

    Accessories Furnished

    Detachable Cable (1.2m / 3.5mm gold-plated stereo mini-plug, 4 pole / L-shaped)
    Pouch, Eartips (XS,S,M,L)


    About 12 g

    Input Connections

    A2DC connector jack

    ATH-LS400iS Specifications (Microphone)

    Frequency Response

    100 ~ 10,000 Hz

    Open Circuit Sensitivity

    -42dB (0dB = 1V/Pa, 1kHz)



    Polar Pattern