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Celestion CDX14-3040 75W 8 Ohm 1.4 inch NEO Compression Driver

£235.00

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Celestion CDX14-3040 75W 8 Ohm 1.4 inch NEO Compression Driver
1.4" exit, ferrite magnet, 3" voice coil compression driver provides 75Wrms (AES standard) power handling and 106.5dB sensitivity

  • 75 watt continuous power rating
  • Compact light weight design
  • 3'' copper-clad aluminium voice coil
  • Single piece titanium diaphragm and surround
  • Natural and transparent high frequencies
See specification tab for technical details or Click HERE for full details, response curves and Thiele & Small parameters. (opens in new window)

Model: CDX14-3040

note: Price includes VAT

General Specifications
Power rating - 75Wrms
Continuous Power rating - 150Wrm
Nominal impedance - 8 Ohms
Sensitivity2 - 106.5dB
Frequency range - 500-20000Hz
Recommended min. crossover (12dB/oct) - 1000Hz 12dB/oct
Voice coil diameter - 3in/75mm
Magnet type - Ferrite
Diaphragm material - Titanium
Coil material - Edgewound Copper Clad Aluminium
Surround material - Kapton

Mounting Information:
Fitting - Flange (4 x M6 holes on a 102mm/4in PCD)
Overall depth - 2.7in/68mm
Overall width - 5.3in/1.35mm
Throat exit - 35.6mm/1.4in
Unit weight - 1.4kg


Celestion’s CDX14-3040 neodymium magnet compression driver is a perfect example of
our commitment to continual refinement. It stands on the shoulders of industry giants; based
on a traditional design approach to deliver a high quality HF response with a familiar sonic
character. It offers several performance advantages over its predecessors, including lower overall
distortion, and reduced size and weight.
We have taken a more scientific approach to the tried-and-tested large format compression
driver design, with the rigorous application of finite element analysis (FEA), enabling Celestion
to better optimize and enhance the design, improving the performance beyond that of the
recognised industry standard devices.
The CDX14-3040’s diaphragm surround has a periodic geometry, which effectively eliminates
circumferential modes while still allowing for linear excursion. A high-temperature polymer clamp
ring is optimized for stiffness through its geometry, ensuring that the dome is always held rigid
and preventing the diaphragm from bending. The diaphragm assembly is located into the magnet
with a precision-cut aluminium locating ring. This is probably one of the most important parts of
the driver, but so often overlooked. The locating ring ensures the coil is always held concentric to
the magnet gap, as any offset of the can allow it to hit the magnet assembly. Between the cover
and the clamp ring is a semi-rigid layer of a polymer similar to rubber, which spreads clamping
pressure more evenly across the diaphragm assembly. This means that the diaphragm assembly is
more likely to stay flat, holding the dome without allowing it to deform.
Inside the die-cast aluminium cover, acoustic damping material absorbs much of the vibration to
the rear of the dome and makes the sound into behave as if the cavity is slightly bigger than it is.
This enables the device to work down to a lower frequency, as the air load behind the diaphragm is
often a limiting factor.
Size and weight are very important factors in applications like line arrays. Neodymium is more
magnetically powerful than a ferrite magnet, so you can use a lot less material to achieve the same
gap flux. By using a neodymium magnet, Celestion have
reduced the size and weight of the CDX14-3040 compared to
its predecessors, facilitating much closer coupling. The unit’s
diameter is 131mm/5.2in, compared with its predecessor, the
ferrite magnet CDX14-3030, which is 180mm/7in.
The new CDX14-3040 HF compression driver is the most
compact and one of the lightest in its class. Celestion have
made significant use of FEA on the magnet assembly to
minimize the amount of steel required. That helps reduce
the weight and when you’re touring with a serious line
array, performing in large venues night after night, the New
Celestion CDX14 3040 is a significant benefit

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  • 4 Units in Stock
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