The 15NW530 low frequency neodymium transducer has been specifically developed for high power, low distortion, compact subwoofer applications. The transducer finds its main application on compact vented subwoofers as small as 75 lit. properly tuned, but it is suitable also in bandpass or horn loaded applications. The neodymium magnet assembly assures high flux concentration, low power compression and excellent heat exchange, since the external magnet configuration is considerably more efficient than traditional under-pole magnet topology. This results in high levels of force factor and power handling with an optimum power to weight ratio. The transducer incorporates Eighteen Sound exclusive DSS technology (Double Silicon Spider) in combination with a single roll highly damped rubber surround. The already low distortion and sound quality are further improved by properly positioned Single Demodulating Ring (SDR technology) that flatten impedance and phase with a constant power transfer. The 75mm edge-wound state-of-the-art voice coil assembly is wound on a strong fiberglas former to improve force transmission and power handling. The deep profile curvilinear cone, created from a special high strength wood pulp, has been designed to achieve the best possible linearity within its frequency range. The in-house developed cone treatment is a humidity repellent and significantly dampens bell mode resonances. A special coating applied to both the top and back plates makes the 15NW530 far more resistant to the corrosive effects of salts and oxidization.
Mounting and Shipping Info
Nominal Diameter380 mm ( in)
Nominal Impedance8 Ω
Minimum Impedance6.3 Ω
Nominal Power Handling1500 W
Continuous Power Handling2800 W
Frequency Range47 - 3500 Hz
Voice Coil Diameter75 mm (3.0 in)
Surround ShapeSingle roll - Rubber
Woofer Cone TreatmentWeather protected
Recommended Enclosure100.0 dm3 (3.53 ft3)
Recommended Tuning43 Hz
Resonance Frequency38 Hz
Vas154.0 dm3 (5.44 ft3)
Sd900.0 cm2 (139.5 in2)
Overall Diameter387 mm (15.24 in)
Bolt Circle Diameter370 mm (14.57 in)
Baffle Cutout Diameter353.0 mm (13.9 in)
Depth169 mm (6.65 in)
Flange and Gasket Thickness11 mm (0.43 in)
Net Weight4.0 kg (8.82 lb)
Shipping Weight4.8 kg ( lb)
Shipping Box405 x 405 x 214 mm (15.94x15.94x8.43 in)
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 2.83 V for 8 ohms Nominal Impedance.