SB Acoustics SB21RDCN-C000-4 Ring Dome Tweeter

SB Acoustics

SB Acoustics SB21RDCN-C000-4 Ring-Dome Tweeter

  • Non-resonant diaphragm design for minimum high frequency break-up
  • 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 resonance frequency
Product Specifications
Nominal Impedance 4 ohms
DC resistence,Re 3.1 ohms
voice coil inductance,Le 0.04 mH
Free air resonance,Fs 850 Hz
Sensitivity(2.83V/1m) 89.5 dB
Mechanical Q-factor,Qms 2.71
Electrical Q-factor,Qes 2.45
Total Q-factor,Qts 1.28
Moving mass incl. air,Mms 0.25 g
Force factor,BI 1.3 Tm
Rated power handling* 40 W
Effective piston area,Sd 4.6 cm²
Voice coil diameter 20.4 mm
Voice coil height 1.5 mm
Air gap height 2.0 mm
Linear coil travel(p-p) 0.5 mm
Magnetic flux density 0.1 T
Magnetic weight 0.01 Kg
Net weight 0.06 Kg

Frequency and Impedance Graph:

SB Acoustics SB21RDC-C000-4 Ring Dome Tweeter


SB Acoustics SB21RDC-C000-4 Ring Dome Tweeter