REDCATT 21NPW
4Ω
Woofer
| Nominal diameter | 21″ / 546 mm |
| Resonance | 35 Hz |
| Q factor | 0.32 |
| Sensitivity | 94.8 dB |
| Linear excursion | ± 15.5 mm |
| Program Power | 3600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 94.8dB
Thiele & Small parameters
- Resonance frequency (free air) fS 35Hz
- Mechanical quality factor QMS 11.12
- Electrical quality factor QES 0.33
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion (one way) xmax 15.5mm
- Air volume displaced at xmax VD 2576cm³
- Power handling P 1800W
- Program power Pmax 3600W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.0Ω
- Inductance (1kHz) LE 1.14mH
- VC Diameter 134.6mm
- Winding height HVC 33mm
- Winding material Copper
- Former material kapton
Magnet
- Force factor Bl 32.9N/A
- Motor constant Bl/√RE 19N/√W
- Air gap height HAG 15mm
- Material Neodymium
Diaphragm
- Effective diameter 460mm
- Effective area SD 1662cm²
- Moving mass MMS 514g
- Moving mass (without air load) MMD 466g
- Material Paper
Suspensions
- Stiffness KMS 26.3N/mm
- Compliance CMS 38µm/N
- Equivalent volume to the compliance VAS 149L
- Mechanical resistance RMS 10.2N·s/m
- Surround material Fabric
- Spider material Nomex
Dimensions
- Nominal diameter 21″
- 546mm
- Overall diameter 546mm
- Baffle cutout diameter 496mm
- Mounting depth 245mm
- Volume occupied by the driver (estimated) 6.9L
- Net weight 14.85kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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