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15ND930 18 Eighteen SOUND Altoparlante Subwoofer 500W 98dB 15"
€383.00
Tax included
15ND930 18 Eighteen SOUND Altoparlante Subwoofer 500W 98dB 15"
Description
The 15ND930 is a high power, high output, extended low frequency neodymium transducer which meets the most stringent requirements in high quality professional transducers. The high level of performance and sound quality have been achieved by exploiting the most advanced technologies available today. Thanks to its versatility, the 15ND930 can be used in 2-way compact reflex enclosures with a 1.4" compression driver, in multiway systems and in high loading sub woofers as small as 70 lt (compact reflex, bandpass and horn loaded configurations). 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 direct contact between the large heat sink and basket, together with the magnetic structure, represent a fundamental improvement in thermal connection and heat dissipation. Hence, power handling capabilities are increased and power compression lowered. 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 cone surround, made from a linen material is highly resistant to aging and fatigue. The in-house developed cone treatment is a humidity repellent and significantly dampens bell mode resonances. The 75mm (3in) copper edge-wound voice coil assembly is wound on a strong fiberglas former to improve force transmission and power handling. The already low distortion and sound quality are further improved by Double Demodulating Rings (DDR) that flatten impedance and phase with a constant power transfer. A special coating applied to both the top and back plates makes the 15ND930 far more resistant to the corrosive effects of salts and oxidization.
General Specifications
Nominal Diameter | 380mm (15 in) |
Rated Impedance | 8 Ohm |
AES Power | 500W |
Program Power | 800W |
Peak Power | 1600W |
Sensitivity | 98 dB |
Frequency Range | 40 - 4100 Hz |
Power Compression @-10dB | 0,6 dB |
Power Compression @-3dB | 1,9 dB |
Power Compression @Full Power | 2,8 dB |
Max Recomm. Frequency | 1700 Hz |
Recomm. Enclosure Volume | 60 - 140 lt. (2,12 - 4,95 cuft) |
Minimum Impedance | 6,8 Ohm at 25°C |
Max Peak To Peak Excursion | 33 mm (1,3 in) |
Voice Coil Diameter | 75 mm (3 in) |
Voice Coil winding material | copper |
Suspension | M-roll, Polycotton |
Cone | Curvilinear, Treated paper |
Thiele Small Parameters
Fs | 36 Hz |
Re | 5,5 Ohm |
Sd | 0,085 sq.mt. (131,75 sq. in.) |
Qms | 5,3 |
Qes | 0,23 |
Qts | 0,22 |
Vas | 206 lt. (7,28 cuft) |
Mms | 101 gr. (0,22 lb) |
BL | 23,8 Tm |
Linear Mathematical Xmax | ± 7,5 mm (± 0,30 in) |
Le (1kHz) | 1,61 mH |
Ref. Efficiency 1W@1m (half space) | 98,2 dB |
Mounting information
Overall diameter | 387 mm (15,24 in) |
N. of mounting holes and bolt | 8 |
Mounting holes diameter | 7,15 mm (0,28 in) |
Bolt circle diameter | 370-371 mm (14,55-14,6 in) |
Front mount baffle cutout ø | 353 mm (13,9 in) |
Rear mount baffle cutout ø | 357 mm (14,06 in) |
Total depth | 177 mm (7 in) |
Flange and gasket thickness | 11,5 mm (0,45 in) |
Net weight | 4,1 kg (9 lb) |
Shipping weight | 5,7 kg (12,56 lb) |
Packaging Dimensions | 405 x 405 x 214 mm (15,94 x 15,94 x 8,43 in) |
Models
Model | Code | Info |
---|---|---|
022156N220 | 022156N220 | 16 Ohm |
022158N220 | 022158N220 | 8 Ohm |
022154N220 | 022154N220 | 4 Ohm |