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Eighteen Sound 8NW650 - 8" Neodymium Speaker - 18 Sound
Key Features:
Description
The 8NW650 is a 8 inch neodymium woofer. The transducer has been developed in response to a specific market requirement for a light weight design that combines excellent linearity with high power handling capabilities. The 8NW650 is primarily intended for use as a low frequency driver for line-arrays as well as high quality 2-way or multiway reflex enclosures. The low pass filter might be positioned as high as 2000Hz. The high grade neodymium magnet assembly assures high flux concentration and low power compression. The levels of force factor and power handling are, as a consequence, at the upper professional level with best power to weight ratio.
The 65mm Ø edgewound aluminum wire voice coil is wound on a high strength fiberglas former. The voice coil is cooled through airways placed between the chassis back plate and the magnet faceplate and carefully designed ventilation ducts made into the metal back plate. The curvilinear paper cone is formed using a special high strength wood pulp, designed to achieve the best possible rigidity and stiffness. The ability to perform in humid environments is an extra key feature of the 8NW650. This is achieved trough the application of an exclusively developed membrane treatment which renders the cone humidity repellent while does not increasing the total moving speaker mass. In addition, a special epoxy treatment is applied to the top and back plates making the transducer far more resistant to the corrosive effects of salts and oxidization.
General Specifications
| Nominal Diameter | 8 in |
| Rated Impedance | 8 Ohm |
| AES Power | 300 W |
| Program Power | 600 W |
| Peak Power | 1200 W |
| Sensitivity | 96 dB |
| Frequency Range | 55 - 6300 Hz |
| Power Compression at -10dB | 0.8 dB |
| Power Compression at -3dB | 2.2 dB |
| Power Compression at Full Power | 3.0 dB |
| Max Recomm. Frequency | 2500 Hz |
| Recomm. Enclosure Volume | 0.36 - 1.41 cuft |
| Minimum Impedance | 6.3 Ohm at 25°C |
| Max Peak To Peak Excursion | 1.02 in |
| Voice Coil Diameter | 2.5 in |
| Voice Coil winding material | Edgewound aluminum |
| Suspension | Triple roll, Polycotton |
| Cone | Curvilinear weather resistant treated paper |
Thiele Small Parameters
| Fs | 63 Hz |
| Re | 6.1 Ohm |
| Sd | 35.19 sq.in. |
| Qms | 3.7 |
| Qes | 0.27 |
| Qts | 0.25 |
| Vas | 0.63 cuft |
| Mms | 0.06 lb |
| BL | 15.2 Tm |
| Linear Mathematical Xmax | ±0.22 in |
| Le (1kHz) | 0.71 |
| mHRef. Efficiency 1W at 1m (half space) | 94.0 dB |
Mounting information
| Overall diameter | 8.3 in |
| N. of mounting holes and bolt | 6 |
| Mounting holes diameter | 0.23 in |
| Bolt circle diameter | 7.68-7.8 in |
| Front mount baffle cutout ø | 7.28 in |
| Rear mount baffle cutout ø | 7.3 in |
| Total depth | 4.38 in |
| Flange and gasket thickness | 0.35 in |
| Net weight | 4.85 lb |
| Shipping weight | 5.95 lb |
| Packaging Dimensions | 9.25 x 9.25 x 5.91 in |
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Exchanges
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Additional charges may apply when shipping to AK, HI and Puerto Rico. Most orders ship within 1-3 business days.
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Not satisfied with your purchase? Return within 30 days for a full refund. We pay the shipping back!
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