Speaker - Celestion, 18", CF1840JD, 1000 watts

Speaker - Celestion, 18", CF1840JD, 1000 watts image 1
Speaker - Celestion, 18", CF1840JD, 1000 watts image 2
Click to zoom in
Speaker - Celestion, 18", CF1840JD, 1000 watts image 1Speaker - Celestion, 18", CF1840JD, 1000 watts image 2
Customer Images:
No Images yet! Submit a product image below!

Speaker - Celestion, 18", CF1840JD, 1000 watts

Note: special order items require additional lead time. See our page on special order items.

Special Order Item

Speaker, Celestion, CF1840JD, 18 in., 8 ohm Features:

  • 18" ferrite magnet, cast aluminium chassis LF driver delivering 1000Wrms (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
Item ID:
CelestionCelestion Pro Audio
Magnet Type:
RoHS Compliant
Product Measurements by Type
Chassis TypeCast aluminium
Coil MaterialRound copper
Cone MaterialKevlar-loaded paper
D210 mm
Diaphragm/Coil Mass (Mmd)185.145 g
Electrical Q Factor (Qes)0.496
Equivalent Acoustic Volume (VAS)113.924 liters
Force Factor (BxL)24.758 Wb/m
Former MaterialGlass fibre
Frequency Range30 Hz - 2,500 Hz
Gap Depth10 mm
Magnet TypeFerrite
Magnet Weight112 oz.
Maximum Linear Displacement (XMAX)10 mm
Mechanical Compliance (CMS)0.063 mm/N
Mechanical Moving Mass (MMS)215.15 g
Mechanical Q Factor (QMS)4.21
Mechanical Resistance of Driver (Rms)13.653 kg/s
Nominal Diameter18 in.
Nominal Impedance8 Ω
Power Rating1,000 Wrms
Resonance Frequency (ƒS)44.2 Hz
Sensitivity98 dB
Surround MaterialCloth-sealed
Total Q Factor (QTS)0.444
Voice Coil DC Resistance (Re)5.29Ω
Voice Coil Diameter4 in.
Voice Coil Inductance @ 1 kHZ (LE)0.96 mH
Voice Coil Winding Width30 mm
Packaging Information
Packaging Dimensions19 in. × 19 in. × 10 in.
Weight (Packaging)27.6 lbs.

My Project Lists

You must be logged in to add items to a project list.

Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet162.33 KB

Questions and Answers

No questions have been asked about this product.

Product Reviews

No product reviews yet! Be the first!