BEYMA 118ND/W -18" LIGHTWEIGHT WOOFER
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BEYMA 118ND/W -18" LIGHTWEIGHT WOOFER |
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LARGE 4.5" VOICE COIL, HANDLES 1,400 WATTS & WEIGHS 15.4LBS! |
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BEYMA 118ND/W |
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No Longer Available |
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WOOFER
MODEL |
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Specifications |
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Nominal
Basket Diameter |
18" |
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Impedance |
8
ohms |
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AES
Power Rating |
700
Watts |
| Program Power |
1,400
Watts |
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Frequency
Response |
25Hz
- 2.5kHz |
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Sensitivity
(1W/1m) |
98dB |
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Voice
Coil Diameter |
4.5" / 114mm |
| Recom. Enclosure Volume | 2.8-7.0 ft3 / 80-200 Liters |
| BL Factor | 25.3 |
| Voice Coil Length | 21 mm |
| Air Gap Height | 8 mm |
| X Damage (peak to peak) | 29 mm |
| Magnetic Assembly Weight | 10.78 lb. / 4.9 kg. |
| Mounting Information | |
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Overall Diameter |
18" / 460mm |
| Bolt Circle Diameter | 17.24" / 438mm |
| Baffle Cutout Diameter- | |
| - Front Mount | 16.34" / 415mm |
| - Rear Mount | 15.75" / 400mm |
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No.
Of Mounting Holes |
8 |
| Volume Displaced By Driver | 0.42 ft3 / 12 Liters |
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Overall
Depth |
8.11" / 206mm |
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Net
Weight |
17.6 lb. / 8 kg. |
| Shipping Weight | 21,34 lb. / 9.7 kg. |
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Materials |
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| Basket | Die Cast Aluminum |
| Cone | High Stiffness Paper |
| Surround | Treated Cloth |
| Voice Coil | Edgewound Copper Wire |
| Former | Polyimide Fiber Glass |
| Spider | Nomex w/ Dual Spider |
| Metal Parts | Anti-Corrosion Coated |
| Magnet | High Energy Neodymium |
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Thiele-Small Parameters |
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| Resonant Frequency (fs) | 36 Hz |
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Impedance
(Re) |
6.1 ohms |
| Coil Inductance (Le) | 1.1 mH |
| Mechanical Q (Qms) | 14.1 |
| Electrical Factor(Qes) | .41 |
| Total Q (Qts) | .4 |
| Comp. Equivelant Vol. (Vas) | 8.79 ft3 / 249 Liters |
| Voice Coil Overhang (Xmax) | 7.0mm |
| Surface Area of Cone (Sd)m2 | 0.13m2 |
| Reference Efficiency | 2.7% |
| Displacement Volume (Vd) | 900 cm3 |
| Dimensions | |
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| Frequency Response & Distortion Curves | |
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| Predicted Low Frequency Response(Bass Reflex): Vb:150L & Fb:37Hz | |
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| Free Air Impedance Curve | |
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US Speaker, LLC
