Celestion NTR21-5010JD
Low frequency
21″ / 530 mm
Nominal diameter
32 Hz
Resonance
0.32
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
3200 W
Program Power
Discontinued
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- Amazon.com
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.5
- dB
- Frequency response
- 30 - 3000
- Hz
- Resonance frequency (free air)
- fS
- 32.2
- Hz
- Mechanical quality factor
- QMS
- 5.82
- Electrical quality factor
- QES
- 0.34
- Total quality factor
- QTS
- 0.32
- Maximum linear excursion
- xmax
- 9.0
- mm
- Air volume displaced at xmax
- VD
- 1496
- cm³
- Power handling
- P
- 1600
- W
- Program power
- Pmax
- 3200
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.6
- Ω
- Inductance (1kHz)
- LE
- 2.25
- mH
- VC Diameter
- 125
- mm
- Winding height
- HVC
- 30
- mm
- Winding material
- Round copper
- Former material
- Glass fibre
- Force factor
- Bl
- 33.85
- N/A
- Motor constant
- Bl/√RE
- 14.3
- N/√W
- Air gap height
- HAG
- 12
- mm
- Material
- Neodymium
- Effective diameter
- 460
- mm
- Effective area
- SD
- 1662
- cm²
- Moving mass
- MMS
- 344.1
- g
- Moving mass (without air load)
- MMD
- 296.2
- g
- Material
- Carbon fibre loaded paper
- Stiffness
- KMS
- 14.29
- N/mm
- Compliance
- CMS
- 70
- µm/N
- Equivalent volume to the compliance
- VAS
- 277
- L
- Mechanical resistance
- RMS
- 11.98
- N·s/m
- Surround material
- Cloth-sealed
- Nominal diameter
- 21
- ″
- 530
- mm
- Overall diameter
- 550
- mm
- Baffle cutout diameter
- 492
- mm
- Overall depth
- 254
- mm
- Volume occupied by the driver (estimated)
- 9.0
- L
- Net weight
- 12.8
- kg
- Frame material
- Cast aluminium
Available on (affiliate link)
Specifications
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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