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Eighteensound 18NLW9400 18inch Lautsprecher Chassis 4 Ohm
ES18NLW9400-4
- 98 dB SPL 1W / 1m average sensitivity
- 100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
- 2400 W program power handling
- Fiberglass reinforced cone
- Double Silicon Spider (DSS) for superior excursion control and linearity
- Improved heat dissipation via multi-cell air diffractor and multiple backplate vents
- Weather protected cone and plates for outdoor usage
- Ideal for high SPL subwoofer designs
The 18NLW9400 is an 18 inch extended low frequency loudspeaker designed for high SPL subwoofer applications in either a reflex, bandpass or horn loaded configuration. For optimum results we recommend amplifiers able to deliver 2400 Watt program power without clipping. Transducer design features include a large displacement suspension system which, in conjunction with a fiberglass reinforced, straight ribbed cone and the Eighteen Sound proprietary Double Silicon Spider (DSS) technology, allows an ultra-linear piston action and provides full mechanical control across the entire working range. The 100 mm (4 in) inside-outside copper voice coil based on Interleaved Sandwich Voice coil (ISV) technology provides high levels of thermal stability and durability. In order to furtherly increase power handling and reduce power compression figure, 18NLW2400 uses the same voice coil ventilation technology developed for our flagship 9000 neodymium transducer series. A special low density material air diffractor has been placed into the backplate acting as a cooling system, increasing power handling capability and lowering the power compression figure. As a final result Eighteen Sound engineers obtained almost 1 dB reduction in full power power compression value if compared to 18LW1400, and an increased program power handling value of 2400 Watt.18NLW9400 is able to perform properly under inclement weather conditions: the exclusive cone treatment improves pulp strength and gives water repellent properties to both sides of the cone.
| Nominal Impedance | 4 Ohm |
| Minimum Impedance | 3,3 Ohm |
| Nominal Power Handling1 | 1200 W |
| Continuous Power Handling2 | 2400 W |
| Sensitivity3 | 98,0 dB |
| Frequency Range | 30 - 2500 Hz |
| Voice Coil Diameter | 100 mm |
| Winding Material | copper |
| Surround Shape | Triple roll |
| Cone Shape | Straight |
| Magnet Material | Neo |
| Woofer Cone Treatment | Weather protected |
| Recommended Enclosure | 220,0 dm3 |
| Recommended Tuning | 35 Hz |
| Resonance Frequency | 32 Hz |
| Re | 2,6 Ohm |
| Qes | 0,23 |
| Qms | 6,1 |
| Qts | 0,22 |
| Vas | 278,0 dm3 |
| Sd | 1225,0 cm2 |
| Xmax | 9,5 mm |
| Mms | 185,0 g |
| Bl | 20,5 Txm |
| Le | 1,25 mH |
| EBP | 139 Hz |
| Overall Diameter | 462 mm |
| Bolt Circle Diameter | 438 mm |
| Baffle Cutout Diameter | 416,0 mm |
| Depth | 223 mm |
| Flange and Gasket Thickness | 21 mm |
| Net Weight | 8,7 kg |
| Shipping Weight | 10,0 kg |
| Shipping Box | 482 x 482 x 257 mm |
Herstellerinformation
| Marke | Eighteensound |
|---|---|
| Hersteller | Eighteen Sound SRL |
| info@eighteensound.it | |
| Telefon | (+39) 0522 1861800 |
| Anschrift | Via Botticelli 8 1 - Loc. Vallina, 42124 Mancasale (Reggio Emilia), Italien |
| Qts | 0.2216 |
|---|---|
| BL (Tm) | 20.5 |
| Qes | 0.23 |
| Qms | 6.1 |
| Vas (l) | 278.0 |
| Xmax (mm) | 9.5 |
| Fs (Hz) | 32 |
| Empfindlichkeit (dB) | 98.0 |
| Re (Ohm) | 2.6 |
| Sd (m²) | 0.1225 |
| Mms (g) | 185 |
| Le (mH) | 1.25 |
| Recommended Enclosure | 220.0 dm3 (7.77 ft3) |
| Einbautiefe | 223 mm (8.8 in) |
| Schallwandausschnitt | 416.0 mm (16.38 in) |
| MInimale Impedanz | 3.3 Ω |
| Wicklung besteht aus | copper |
| Magnet | Neo |
| Versandkarton | 482 x 482 x 257 mm (18.98x18.98x10.12 in) |
| Woofer Cone Treatment | Weather protected |
| EBP | 139 Hz |
| Nominale Impedanz | 4 Ω |
| Außendurchmesser | 462 mm (18.19 in) |
| Lochkreisdurchmesser | 438 mm (17.24 in) |
| Dauerbelastbarkeit | 2400 W |
| Versandgewicht | 10.0 kg (22.05 lb) |
| Flange and Gasket Thickness | 21 mm (0.83 in) |
| Nominale Belastbarkeit | 1200 W |
| Surround Shape | Triple roll |
| Netto Gewicht | 8.7 kg |
| Tuning Frequenz | 35 Hz |
| Schwingspulendurchmesser | 100 mm (4.0 in) |
| Cone Shape | Straight |
| Frequenzbereich | 30 - 2500 Hz |
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