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Scanspeak R2904/700000 Tweeter - Revelator Range

Scanspeak R2904/700000, esoteric ring tweeter with patented central phase plug.

Revelator logo

An advanced design 26mm tweeter featuring a large neodymium ring magnet mounted within an airflow optimised rear chamber. Exceptionally low distortion and compression characteristics. Machined to very tight tolerances, this superbly engineered drive unit is testimony to the excellence of the Scanspeak brand.

Key Features:

  • Anodised Precision Machined Aluminium Face Plate
  • Large Ring Neodymium Magnet, High Output
  • Patented Symmetrical Drive (SD-2) motor
  • Unique Patented Phase Plug Design
  • 1" Ring Dome Diaphragm

There are 3 cosmetic variants of this tweeter:

Silver Faceplate, Silver phase plug :  R2904/700000

Black Faceplate, Silver phase plug :  R2904/700005

Black Faceplate, Black phase plug:   R2904/700009


Basic parameters:

Resonant frequency (fs) 520 Hz Nominal impedance (Zn) 4 Ω
Effective diaphragm diameter 26 mm DC resistance (Re) 3 Ω
Ferrofluid ? Y/N No RMS power handling 160 W
Recommended crossover 2.5 kHz 12dB Faceplate diameter 104mm
Sensitivity (2.83V/1m) 94.5 dB Cutout hole diameter 75 mm

Here's the full datasheet:

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