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EIGHTEEN SOUND 18W2000 8ohm

Šifra: 6853
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Key features

99 dB SPL 1W / 1m average sensitivity
100 mm (4 in) Interleaved Sandwich ISV copper voice coil
1200 W AES power handling
Double Silicon Spider (DSS) for improved excursion control and linearity
Improved heat dissipation via unique basket design and multi-cell air diffractor
Weather protected cone and plates for outdoor usage
Suitable for high SPL subwoofer designs

Downloads



 Data sheet


 Drawing






 
Description The 18W2000 is a low frequency woofer which sets a benchmark in 18" (460 mm) high output transducers. Showing 20% higher power handling and 10% lower weight, it represents a significative development of the acclaimed 18W1000 model.The 18W2000 can be used as a low bass or subwoofer component in either a reflex, bandpass or horn loaded configuration. It provides clean, linear, undistorted low frequency reproduction at very high power levels.The high excursion capabilities of the surround and suspension system, in conjunction with the Double Silicon Spider (DSS), enable the 18W2000 to achieve high levels of linear travel while maintaining full control of the moving mass.The high quality curvilinear cone assures smooth response and exceptional strength with maximum reliability under high mechanical stress. The 100mm diameter copper wire voice coil employs the Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a balanced coil with a uniform distribution of mass and motive energy. This results in an extremely linear motor assembly. Maximum flux concentration and force factor in the gap is assured by the unique shape and design of the top and back plates, which have been researched and designed using our in-house magnetic flux FEA CAD resource.18W2000 uses the voice coil ventilation technology developed for our flagship 9000 neodymium transducer series. A special low density multi-cell 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.18W2000 is able to perform in adverse weather conditions or in areas of high humidity. This key feature has been achieved using an exclusive water repellent cone treatment and magnetic plate coating which resists against environmental corrosion.



GENERAL SPECIFICATIONS


Nominal Diameter
460 mm (18 in)


Rated Impedance
8 Ohm


AES Power
1200 W


Program Power (1)
2400 W


Peak Power (2)
7000 W


Sensitivity (3)
99 dB


Frequency Range (4)
37 - 3000 Hz


Power Compression @-10dB (5)
0,5 dB


Power Compression @-3dB
1,5 dB


Power Compression @Full Power
2,2 dB


Max Recomm. Frequency
500 Hz


Recomm. Enclosure Volume
120 ÷ 300 lt. (4,24 ÷ 10,60 cuft)


Minimum Impedance
7,3 Ohm at 25°C


Max Peak To Peak Excursion
36 mm (1,42 in)


Voice Coil Diameter
100 mm (4 in)


Voice Coil Winding Material
copper


Suspension
M-roll, Polycotton


Cone
Curvilinear, Paper



 



THIELE SMALL PARAMETERS  (6)


Fs
37 Hz


Re
5,8 Ohm


Sd
0,1134 sq.mt. (175,7 sq.in.)


Qms
7,29


Qes
0,26


Qts
0,25


Vas
230 lt. (8,12 cuft)


Mms
143 gr. (0,32 lb)


BL
27,1 Tm


Linear Mathematical Xmax (7)
± 7 mm (±0,28 in)


Le (1kHz)
1,90 mH


Ref. Efficiency 1W@1m (half space)
98,6 dB



 



MOUNTING INFORMATIONS


Overall diameter
462 mm (18,18 in)


N. of mounting holes
8


Mounting holes diameter
8,5 mm (0,33 in)


Bolt circle diameter
438-440 mm (17,24-17,32 in)


Front mount baffle cutout ø
416 mm (16,38 in)


Rear mount baffle cutout ø
412 mm (16,22 in)


Total depth
205,9 mm (8,1 in)


Flange and gasket thickness
19 mm (0,75 in)


Net weight
11,5 kg (26,35 lb)


Shipping weight
13 kg (28,66 lb)


CardBoard Packaging dimensions
482 x 482 x 257 mm (19 x 19 x 10,1 in)



 
FREQUENCY RESPONSE CURVE OF 18W2000 MADE ON 180 LIT. ENCLOSURE TUNED 35HZ IN FREE FIELD (4PI) ENVIRONMENT. ENCLOSURE CLOSES THE REAR OF THE DRIVER. THE THIN LINE REPRESENTS 45 DEG. OFF AXIS FREQUENCY RESPONSEFREE AIR IMPEDANCE MAGNITUDE CURVE
 
Key features

  • 99 dB SPL 1W / 1m average sensitivity
  • 100 mm (4 in) Interleaved Sandwich ISV copper voice coil
  • 1200 W AES power handling
  • Double Silicon Spider (DSS) for improved excursion control and linearity
  • Improved heat dissipation via unique basket design and multi-cell air diffractor
  • Weather protected cone and plates for outdoor usage
  • Suitable for high SPL subwoofer designs
Downloads
 Data sheet
 Drawing
18W2000
 


Description
The 18W2000 is a low frequency woofer which sets a benchmark in 18" (460 mm) high output transducers. Showing 20% higher power handling and 10% lower weight, it represents a significative development of the acclaimed 18W1000 model.
The 18W2000 can be used as a low bass or subwoofer component in either a reflex, bandpass or horn loaded configuration. It provides clean, linear, undistorted low frequency reproduction at very high power levels.
The high excursion capabilities of the surround and suspension system, in conjunction with the Double Silicon Spider (DSS), enable the 18W2000 to achieve high levels of linear travel while maintaining full control of the moving mass.
The high quality curvilinear cone assures smooth response and exceptional strength with maximum reliability under high mechanical stress.
The 100mm diameter copper wire voice coil employs the Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a balanced coil with a uniform distribution of mass and motive energy. This results in an extremely linear motor assembly.
Maximum flux concentration and force factor in the gap is assured by the unique shape and design of the top and back plates, which have been researched and designed using our in-house magnetic flux FEA CAD resource.
18W2000 uses the voice coil ventilation technology developed for our flagship 9000 neodymium transducer series. A special low density multi-cell 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.
18W2000 is able to perform in adverse weather conditions or in areas of high humidity. This key feature has been achieved using an exclusive water repellent cone treatment and magnetic plate coating which resists against environmental corrosion.

GENERAL SPECIFICATIONS
Nominal Diameter 460 mm (18 in)
Rated Impedance 8 Ohm
AES Power 1200 W
Program Power (1) 2400 W
Peak Power (2) 7000 W
Sensitivity (3) 99 dB
Frequency Range (4) 37 - 3000 Hz
Power Compression @-10dB (5) 0,5 dB
Power Compression @-3dB 1,5 dB
Power Compression @Full Power 2,2 dB
Max Recomm. Frequency 500 Hz
Recomm. Enclosure Volume 120 ÷ 300 lt. (4,24 ÷ 10,60 cuft)
Minimum Impedance 7,3 Ohm at 25°C
Max Peak To Peak Excursion 36 mm (1,42 in)
Voice Coil Diameter 100 mm (4 in)
Voice Coil Winding Material copper
Suspension M-roll, Polycotton
Cone Curvilinear, Paper

 

THIELE SMALL PARAMETERS  (6)
Fs 37 Hz
Re 5,8 Ohm
Sd 0,1134 sq.mt. (175,7 sq.in.)
Qms 7,29
Qes 0,26
Qts 0,25
Vas 230 lt. (8,12 cuft)
Mms 143 gr. (0,32 lb)
BL 27,1 Tm
Linear Mathematical Xmax (7) ± 7 mm (±0,28 in)
Le (1kHz) 1,90 mH
Ref. Efficiency 1W@1m (half space) 98,6 dB

 

MOUNTING INFORMATIONS
Overall diameter 462 mm (18,18 in)
N. of mounting holes 8
Mounting holes diameter 8,5 mm (0,33 in)
Bolt circle diameter 438-440 mm (17,24-17,32 in)
Front mount baffle cutout ø 416 mm (16,38 in)
Rear mount baffle cutout ø 412 mm (16,22 in)
Total depth 205,9 mm (8,1 in)
Flange and gasket thickness 19 mm (0,75 in)
Net weight 11,5 kg (26,35 lb)
Shipping weight 13 kg (28,66 lb)
CardBoard Packaging dimensions 482 x 482 x 257 mm (19 x 19 x 10,1 in)

 

FREQUENCY RESPONSE CURVE OF 18W2000 MADE ON 180 LIT. ENCLOSURE TUNED 35HZ IN FREE FIELD (4PI) ENVIRONMENT. ENCLOSURE CLOSES THE REAR OF THE DRIVER. THE THIN LINE REPRESENTS 45 DEG. OFF AXIS FREQUENCY RESPONSE
FREQUENCY RESPONSE CURVE OF 18W2000 MADE ON 180 LIT. ENCLOSURE TUNED 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
FREE AIR IMPEDANCE MAGNITUDE CURVE

 

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