SB Acoustics SB21RDC-C000-4 Tweeter

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SB Acoustics SB21RDC-C000-4 Tweeter

Key features:
  • Large surround dome for increased acoustic performance
  • Dual balanced compression chamber 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 optimized damping for improved dynamics
  • Flow-optimized vented pole piece for optimal connection to the rear chamber
  • CCAW voice coil for low moving mass
  • Long-lasting silver lead wires
  • Low resonant frequency

Short data

Usage as Tweeter
Power Handling 80 Watt
Impedance 4 Ohm
 
Frequency from 1500 Hz
Max. Frequency 30 kHz
Sound pressure 90 dB

Chassis-data

Overall dimensions 100 mm
Baffle cutout 82.2 mm
Depth (Total) 39.7 mm
Membrane Type Dome
Membrane Surround Coated Textile
Membrane Material Coated textile
 
Voice coil Ø 22.4 mm
Voice coil height 1.5 mm
Air gap height 2.5 mm
Magnet Ø 70 mm
Magnet-weight 22 g

Thiele-Small-Parameter

Resonance fs fs: 760 Hz
Mechanical Q Qms: 2.54
Electrical Q Qes: 1.64
Total Q Qts: 1.00
DC-Resistance Re: 3.1 Ohm
Coil Inductance Le: 0.04 mH
 
Moving Mass Mms: 0.25 g
Max. Excursion +/- Xmax: 1.0 mm
BL Product Bl: 1.6 N/A
Membrane Ø Md: 20.4
Membrane Area Sd: 4.6 cm²
Sound pressure dB: 90 SPL

You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.