18 Sound 15 W 700
18 Sound 15 W 700
18 Sound 15 W 700

18 Sound 15 W 700

The 15W700 low frequency transducer meets the specific market demand for a loudspeaker which combines good linearity and efficiency with high power handling capabilities, containing a 75 mm Ø aluminum voice coil. Although primarily intended for use in tuned reflex enclosures, the versatile characteristics of the 15W700 render it suitable for a wide variety of enclosure types, particularly as a subwoofer or as a LF driver in 2 or 3-way systems. When used in a 2-way system, we recommend a 1.4" or 2" exit compression driver in order to obtain the best sound quality. 
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  • The (Eighteen) 18 Sound 15W700 low frequency transducer meets the specific market demand for a loudspeaker which combines good linearity and efficiency with high power handling capabilities, containing a 75 mm Ø aluminum voice coil.
  • Although primarily intended for use in tuned reflex enclosures, the versatile characteristics of the 15W700 render it suitable for a wide variety of enclosure types, particularly as a subwoofer or as a LF driver in 2 or 3-way systems.
  • When used in a 2-way system, we recommend a 1.4″ or 2″ exit compression driver in order to obtain the best sound quality.
  • The deep profile curvilinear paper cone has been made using a special high strength wood pulp and designed to achieve the best possible linearity within its intended frequency range and to control bell-mode resonances around the cone circumference.
  • The cone is carried by an unusually deep profile, double half-roll suspension formed of a linen-like material which is more resistant to aging and fatigue than the traditional cotton-based materials used in conventional surrounds.
  • The 75 mm Ø aluminium voice coil employs the Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a mass balanced coil.
  • This results in an extremely linear motor assembly with a reduced tendency for eccentric behavior when driven hard.
  • The magnetic structure has been optimized using our in-house FEA CAD resource that has maximized the flux density in the voice coil gap.
  • Excellent heat dissipation has also been achieved by incorporating air channels between the basket and the magnetic top plate.
  • Due to the increase in use of audio systems at outdoor events, the ability of the 15W700 to perform in adverse weather conditions or in areas of high humidity is a great advantage.
  • This has been achieved using exclusive treatments which enable the cone and the magnetic plate to resist corrosion and render the cone water repellent at the same time.
Technical Specifications
  • Nominal Basket Diameter 15”, 380 mm
  • Nominal Impedance 8Ω
  • AES Power Rating 450 W (rms)
  • Sensitivity 99 dB
  • Frequency Range 38 Hz – 5000 Hz
  • Voice Coil Diameter 3”
  • Recommended Enclosure Volume 80 – 140 litres
  • Max Peak To Peak Excursion 1.38”, 35 mm
  • Cone Curvilinear, Paper
  • Magnet Composition Ferrite
  • Bolt Circle Diameter @ 14.6”, 371 mm
  • No. Mounting Holes 6.63”, 168.5 mm
  • Total Depth 8
  • Chassis Material Die-Cast Aluminium
  • Unit Weight 18.98 Ib., 8.6 kg