Key features
- 96,5 dB SPL 1W / 1m average sensitivity
- 135 mm (5.3 in) Interleaved Sandwich
Voice coil (ISV)
- 1800 Watt AES power handling
- High force neodymium magnet assembly
- Triple Silicon Spider (TSS) for improved
excursion control and linearity
- Single Demodulating Rings (SDR) for
lower distortion
- Low noise forced ventilation design for
low power compression
- Weather protected cone and plates for
outdoor usage
- Suitable for reflex, bandpass or horn
loaded high SPL subwoofer systems
18NLW9600 Extended
LF Neodymium Driver
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Description
The 18NLW9600 is an extended low frequency 18 inch
neodymium high performance transducer. The
loudspeaker has been designed for use as a subwoofer
component, in either a reflex, bandpass or horn
loaded configuration, in high power auditorium or
arena loudspeaker systems.
For optimum results recommended amplifier should be
able to deliver 3600 Watt program power without
clipping.
Eighteen Sound engineers have obtained the best
possible results with today's available materials in
terms of clean and undistorted LF reproduction at a
ultra high SPL, with the lowest possible power
compression figure.
The transducer design features include a large
displacement suspension system specifically designed
for matching the carbon fiber reinforced, straight
ribbed cone.
Thanks to the Triple Silicon Spider (TSS)
technology, the 18NLW9600 is able to control the
moving mass with high linearity, showing an
exceptional stability of mechanical parameter values
in the long term. Bl force factor, as well as all
other electro-dynamic parameters, are linear within
the working range. This, together with the
exceptional high excursion behavior - 70mm before
damage, ±14mm linear Xmax - makes the 18NLW9600 an
extremely low distortion, highly dynamic transducer.
The state-of-the-art 5,3" inside outside ISV
(Interleaved Sandwich Voice Coil) aluminum voice
coil enables the 18NLW9600 to handle 3600W program
power value.
The 18NLW9600 has been developed after intense FEA
and fluidodynamics simulation and testing, focusing
on dissipating the heat generated by the powerful
voice coil. Special attention was given to the
optimization of air flow into the gap without
introducing audible noise. A special low-density
material air diffractor placed into the heatsink
acts as a cooling system, increasing the power
handling capability and lowering the power
compression figure.
The exclusive cone treatment improves pulp strength
and gives water repellent properties to both sides
of the cone. A special coating applied to both the
top and back plates makes the transducer far more
resistant to the corrosive effects of salts and
oxidization. |
Nominal Diameter |
462mm (18 in) |
Rated Impedance |
8
ohms |
AES Power |
1800W |
Program Power (1) |
3600W |
Peak Power (2) |
10000W |
Sensitivity (3) |
96,5 dB |
Frequency Range (4) |
32 - 2500 Hz |
Power Compression @ -10 dB (5) |
0.7
dB |
Power Compression @ -3 dB |
1.3 dB |
Power Compression @ 0 dB |
2.2
dB |
Max Recomm. Frequency |
300 Hz |
Recomm. Enclosure Volume |
110
÷ 350 lt. (3,88 ÷ 12,36 cuft) |
Minimum Impedance |
6,6 ohms at 25°C |
Max
Peak To Peak Excursion |
70
mm (2,75 in) |
Voice Coil Diameter |
135 mm (5,32 in) |
Voice Coil Winding Material |
aluminum |
Suspension |
Triple Roll Polycotton |
Cone |
Straight Ribbed, Treated Paper |
Fs |
34 Hz |
Re |
4,7
ohms |
Sd |
0,1134 sq.mt. (189,9 sq.in.) |
Qms |
8,7 |
Qes |
0,29 |
Qts |
0,28 |
Vas |
149 lt. (5,1 cuft) |
Mms |
261
gr. (0,58 lb) |
BL |
30 Tm |
Linear Mathematical Xmax (7) |
±14
mm (±0,55 in) |
Le (1kHz) |
2,11 mH |
Ref. Efficiency 1W@1m (half space) |
95,1 dB |
Overall diameter |
462 mm (18,18 in) |
N.
of mounting holes |
8 |
Mounting holes diameter |
8,5 mm (0,33 in) |
Bolt circle diameter |
440mm (17,32 in) |
Front mount baffle cutout
diameter |
416 mm (16,38 in) |
Rear mount baffle cutout diameter |
422
mm (16,61 in) |
Total depth |
237,5 mm (9,3 in) |
Flange and gasket thickness |
26
mm (1,02 in) |
Net weight |
12,5 kg (27,6 lb) |
Shipping weight |
14
kg (30,9 lb) |
CardBoard Packaging
dimensions |
482 x 482 x 257 mm (19 x 19
x 10,1 in) |
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FREQUENCY
RESPONSE CURVE OF 18NLW9600 MADE ON 180 LIT.
ENCLOSURE TUNED AT 35HZ IN FREE FIELD (4PI)
ENVIRONMENT. ENCLOSURE CLOSES THE REAR OF THE
DRIVER. THE THIN LINE REPRESENTS 45 DEG. OFF AXIS
FREQUENCY RESPONSE
FREE AIR IMPEDANCE MAGNITUDE CURVE
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