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SB21SDC-C000-4

SB Acoustics SB21SDC-C000-4 Tweeter

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UK STOCK ITEM

The SB21SDC-C000-4 is a compact 21mm soft dome tweeter from SB Acoustics with excellent dispersion; the on-axis frequency response is outstanding, especially at this price.

Key Features:

  • Large dome surround for increased acoustic output
  • Dual balanced rear compression chambers for improved dynamics
  • Copper cap for reduced voice coil inductance and minimal phase shift
  • Saturation controlled motor system for low distortion
  • Non-reflective rear chamber with optimised damping
  • Flow optimised vented pole piece for optimum coupling to rear chamber
  • CCAW voice coil for low moving mass
  • Long life silver lead wires
  • Low resonant frequency

Basic parameters:

Resonant frequency (fs) 720 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
92mm
Sensitivity (2.83V/1m) 91 dB Cutout hole diameter 64mm

Here's the full datasheet:

.pdf link

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