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- Celestion CF1840JD - T5863 - 8 ohm - Woofer *Special Order*
Celestion CF1840JD - T5863 - 8 ohm - Woofer *Special Order*
- Details
- Additional Information
- 18" ferrite magnet, cast aluminium chassis LF driver delivering 1200Wrms (AES Standard) power handling and 98dB sensitivity
- 4" high temperature, dual layer, Inside/Outside voice coil for higher efficiency, preventing sensitivity loss through thermal compression
- FEA optimized magnet assembly and suspension deliver highly symmetrical cone movement, leading to exceptionally low harmonic distortion
- Vented magnet assembly increases airflow to provide enhanced cooling
- Twin demodulation rings reduce flux modulation, minimizing electromagnetic distortion
- Double suspension and "multi-roll" surround provide exceptional linearity at extremes of cone excursion
General Specifications
Nominal diameter
457mm/18in
Power rating1
1200Wrms
Nominal impedance
8Ω
Sensitivity2
98dB
Frequency range
30-2500Hz
Voice coil diameter
100mm/4in
Chassis type
Cast aluminium
Magnet type
Ferrite
Magnet weight
3.18kg/112oz
Coil material
Round copper
Former material
Glass fibre
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Double
Gap depth
10mm/0.39in
Voice coil winding width
30mm/1.18in
Xmax3
10mm/0.39in
Small Signal Parameters
D
0.38m/14.96in
Fs
44.2Hz
Mms
215.15g/7.59oz
Qms
4.21
Qes
0.496
Mmd
185.145g/6.54oz
Qts
0.444
Re
5.29Ω
Vas
113.924
BI
24.758Tm
Cms
0.063mm/N
Rms
13.653kg/s
Le (at 1kHz)
0.96mH
Mounting Information
Overall diameter
460mm/18.11in
Overall depth
220.35mm/8.68in
Cut-out diameter
414mm/16.3in
Mounting slot dimensions
11mm x 7mm/0.43-0.28in
Number of mounting slots
8
Mounting PCD range
441-432mm/17.36-17.01in
Unit weight
11.6kg/25.5lb
