Eighteen Sound 15ND840 8 Ohm 15″ 600W Loudspeaker
18 Sound 15ND840 8ohm Specifications
99 dB SPL 1W / 1m average sensitivity
75 mm (3 in) edgewound voice coil
600W AES power handling
Optimized and improved neodymium magnet assembly
Double Demodulating Ring (DDR) for lower distortion
Humidity resistant cone
Ideal for two way systems and for high loading compact subwoofer applications
External neodymium magnet assembly
Weather protected cone and plates for outdoor usage
Recommended for multiway systems and studio monitoring applications
| Nominal Diameter | 380 mm ( in) |
| Nominal Impedance | 8 Ω |
| Minimum Impedance | 6.4 Ω |
| Nominal Power Handling1 | 600 W |
| Continuous Power Handling2 | 1200 W |
| Sensitivity3 | 99.0 dB |
| Frequency Range | 38 – 4000 Hz |
| Voice Coil Diameter | 75 mm (3.0 in) |
| Winding Material | aluminum |
| Winding Depth | 23.5 mm (0.93 in) |
| Magnetic Gap Depth | 9.0 mm (0.35 in |
| PARAMETERS | |
| Resonance Frequency | 43 Hz |
| Re | 5.0 Ω |
| Qes | 0.39 |
| Qms | 6.6 |
| Qts | 0.37 |
| Vas | 163.0 dm3 (5.76 ft3) |
| Sd | 881.4 cm2 (136.62 in2) |
| η₀ | 3.10% |
| Xmax | 9.5 mm |
| Xvar | 10.0 mm |
| Mms | 94.0 g |
| Bl | 17.9 Txm |
| Le | 0.43 mH |
| EBP | 110 Hz |
| DESIGN | |
| Surround Shape | M-roll |
| Cone Shape | Curvilinear |
| Magnet Material | Neo |
| Woofer Cone Treatment | Weather protected |
| Recommended Enclosure | 100.0 dm3 (3.53 ft3) |
| Recommended Tuning | 45 Hz |
| MOUNTING AND SHIPPING INFO | |
| Overall Diameter | 393 mm (15.47 in) |
| Bolt Circle Diameter | 371 mm (14.61 in) |
| Baffle Cutout Diameter | 354.0 mm (13.94 in) |
| Depth | 184 mm (7.24 in) |
| Flange and Gasket Thickness | 13 mm (0.53 in) |
| Net Weight | 4.7 kg (10.36 lb) |
| Shipping Weight | 5.5 kg (12.13 lb) |
| Shipping Box | 405 x 405 x 214 mm (15.94×15.94×8.43 in) |
Designed & manufactured in Italy and provided exclusively by Lean Business, this Eighteen Sound speaker comes complete with 2 years warranty.
Why Choose Lean Business Audio?
50 years of experience of designing, building and supplying Home, Car and Professional Audio.
Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare
Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.
For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk














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