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SB21SDCN-C000-4

SB Acoustics SB21SDCN-C000-4 Tweeter

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The SB21SDCN-C000-4 is a 21mm soft dome tweeter from SB Acoustics featuring a neodymium magnet and a very compact body. The on-axis frequency response is excellent for a tweeter in this price range.

Key Features:

  • Large dome surround for increased acoustic output
  • Copper cap for reduced voice coil inductance and minimum phase shift
  • Compact low distortion neodymium motor system
  • Non-resonant rear chamber with optimized damping for improved dynamics
  • CCAW voice coil for low moving mass
  • Long life silver lead wires
  • Low resonant frequency

Basic parameters:

Resonant frequency (fs) 850 Hz Nominal impedance (Zn) 4 Ω
Effective diaphragm diameter 21mm DC resistance (Re) 3.1 Ω
Ferrofluid ? Y/N Yes
Max power handling 40 W
Recommended crossover 2.6kHz/12dB Faceplate diameter
58mm
Sensitivity (2.83V/1m) 90 dB Cutout hole diameter 40mm

Here's the full datasheet:

.pdf link

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