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Scanspeak D3004/664000 Beryllium Tweeter - Illuminator Range

Scanspeak D3004/664000 Beryllium dome tweeter, top of the Illuminator range.

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The pure Beryllium diaphragm and large roll surround provide a flat frequency response to an astonishing 40KHz with outstanding off-axis dispersion, low distortion and dynamic resolution.

Featuring the unique Scanspeak AirCirc ring Magnet System comprising 6 high power Neodymium magnets mounted within an air flow optimised rear chamber, this esoteric tweeter does not suffer from any of reflections and resonances that compromise the performance of traditional motors systems.

Machined from the finest materials. True high end transparency with effortless transients; the state of the art.

Key Features:

  • Beryllium Diaphragm (99% Pure Be)
  • Patented Symmetrical Drive (SD-2) motor
  • AirCirc Motor Design w. 6 Neo magnets
  • Black Rubber Painted Die Cast Faceplate
  • Non-Magnetic Protective Grill

    Basic parameters:

    Resonant frequency (fs) 500 Hz Nominal impedance (Zn) 4 Ω
    Effective diaphragm diameter 26 mm DC resistance (Re) 3 Ω
    Ferrofluid ? Y/N No RMS power handling 90W
    Recommended crossover 2.5 kHz 12dB Faceplate diameter 104mm
    Sensitivity (2.83V/1m) 91.5 dB Cutout hole diameter 78 mm

    Here's the full datasheet:

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