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Bookshelf Speakers — Martin Logan Motion 4i

Description, images, technical data and specifications

Martin Logan Motion 4i
Image source — © Martin Logan

Inspired by the clarity and detail of Martin Logan's ultra-high-end electrostatic speakers, the Motion 4i features a Folded Motion tweeter, dual 4-inch paper-diffuser subwoofers, and its own Vojtko crossover network in a compact and affordable package.

Specifications

  • Model name

    Motion 4i

  • Frequency Response low +/- 3dB (Hz)

    70

  • Frequency Response high +/- 3dB (Hz)

    23 000

  • Sensitivity (dB at 1 W/1m)

    90

  • Impedance (Ohms)

    4

  • Power amplifier requirements (W)

    20 - 150

  • Has internal amplification

    N/A

  • Internal amplification power (W)

    N/A

  • Size (sm)

    32 x 14.3 x 14.5

  • Weight (kg)

    2.72

  • Official link

    https://www.martinlogan.com/en/product/motion-4i

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