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15.0 In



15.0 In

Alternative/Current Model:


  • 98dB LF / 107,5dB HF SPL 1W/1m average sensitivity
  • 100 mm (4") Interleaved Sandwich Voice LF coil (ISV)
  • 850W LF - 100W HF AES power handling
  • Copper shorting ring for constant power transfer
  • 1,4" exit HF neodymium compression driver
  • 75 mm (3") HF edgewound voice coil with high temperature ferrofluid
  • FEA optimized coupling horn profile
  • 70 degrees nominal conical dispersion
  • Suitable for very compact enclosures and stage monitors
  • Weather protected cone and plates for outdoor usage
The 15CX1000 is a 15" – 1.4" coaxial transducer designed for use in compact reflex enclosures and stage monitors as small as 50 lt with a nominal dispersion of 70 degrees.
The low profile, carbon fiber reinforced, smooth curvilinear LF cone provides smooth response within its intended frequency range and exceptional strength, with maximum reliability under high mechanical stress.
The state-of-the-art 100 mm (4 in) LF voice coil employs our Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces. This results in a balanced coil with a uniform distribution of mass and motive energy and an extremely linear motor assembly.
A copper-shorting ring on the LF section plates has been adopted to reduce inductance and improve transient response. Hence, the intermodulation distortion figure has been heavily improved.
The neodymium 1.4" exit compression driver adopted is our ND1480 model, which has been given further thermal power handling capacity by adding high temperature ferrofluid in the gap. This has improved the thermal exchange properties even more.
The HF driver diaphragm assembly, using a high strength, high temperature treated Nomex voice coil former joined directly to the titanium diaphragm on its upper bend edge, assures extended frequency energy transfer. This improves linearity and shows unparallelled reliability when compared with a usual straight former joint.
The HF motor structure utilizes a precisely machined coherent phase plug with 3 circumferential slots. A copper ring on the pole piece reduces the inductance figure of frequencies above 10 kHz, improving phase and impedance linearisation.
A specific design has been chosen by Eighteen Sound engineers in order to maximize the cone’s profile coupling.
Due to the widespread use of high power audio systems at outdoor events, the ability to perform in adverse weather conditions is an additional key feature of the 15CX1000. This has been achieved using exclusive cone and magnet plate treatment processes which increase resistance against corrosion and make the cone water repellent.


Specifications LF unit

Specifications HF unit


Mounting and Shipping Info

  • Nominal Diameter380 mm (14.96 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance LF6.0 Ω
  • Frequency Range45 - 5100 Hz
  • Dispersion Angle170 °
  • Woofer Cone TreatmentWater repellent
  • LF Sensitivity298.0 dB
  • LF Nominal Power Handling3850 W
  • LF Continuous Power Handling41000 W
  • LF Voice Coil Diameter75 mm (2.95 in)
  • LF Winding Material- Aluminum -
  • HF Sensitivity5107.5 dB
  • HF Nominal Power Handling6100 W
  • HF Continuous Power Handling7200 W
  • HF Voice Coil Diameter75 mm (2.95 in)
  • Recommended Crossover81.0 kHz
  • Resonance Frequency48 Hz
  • Re5.5 Ω
  • Qes0.32
  • Qms6.0
  • Qts0.31
  • Vas132.5 dm3 (4.68 ft3)
  • Sd881.0 cm2 (136.56 in2)
  • Xmax6.0 mm
  • Mms85.0 g
  • Bl21.0 Txm
  • Le1.5 mH
  • EBP150 Hz
  • Overall Diameter387 mm (15.24 in)
  • Bolt Circle Diameter370 mm (14.57 in)
  • Baffle Cutout Diameter353 mm (13.9 in)
  • Depth218 mm (8.58 in)
  • Flange and Gasket Thickness19 mm (0.75 in)
  • Net Weight14.4 kg (31.75 lb)
  • Shipping Weight15.0 kg (33.07 lb)
  • Shipping Box405 x 405 x 230 mm (15.94x15.94x9.06 in)
  • Included by –6 dB down points.
  • Applied RMS Voltage is set to 2.83V.
  • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 2.83V.
  • 2 hour test made with continuous pink noise signal within the range from the recommended crossover frequency to 20 kHz. Power calculated on rated nominal impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • 12 dB/oct. or higher slope high-pass filter.
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