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18HP1042 { 18" - 1000 W - 98 dB - 8 Ohm }
Available Impedance: 8 Ohm
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Nominal Specifications
Nominal Diameter 460 mm (18 in)
Overall Diameter 460 mm (18.11 in)
Bolt Circle Diameter 440 mm (17.32 in)
Baffle Cutout Diameter 422 mm (16.61 in)
Depth 202 mm (7.95 in)
Flange and Gasket Thickness 14 mm (0.55 in)
Net Weight 6.7 kg (14.8 lb)
Shipping Box
(Single Carton Box)		 503 x 500 x 258 mm
(19.8 x 19.7 x 10.2 in)
Shipping Weight 7.8 kg (17.2 lb)


Technical Parameters
Nominal Impedance 8 Ohm
Minimum Impedance 6.6 Ohm
AES Power Handling (1) 1000 W
Maximum Power Handling (2) 2000 W
Sensitivity (1W/1m) 98 dB
Frequency Range 38÷2500 Hz
Voice Coil Diameter 100 mm (4 in)
Winding Material Al
Former Material Glass Fiber
Winding Depth 22 mm (0.87 in)
Magnetic Gap Depth 12 mm (0.47 in)
Flux Density 1.3 T
Magnet Neodymium Slug
Basket Material Aluminum
Demodulation No
Cone Surround (3) Triple Roll
NET Air Volume filled by Loudspeaker 5.8 dm^3 (0.205 ft^3)
Spider Profile 2x non-adjacent symmetrical constant height waves
Thiele and small parameters
Fs 38 Hz
Re 5.5 Ohm
Qes 0.43
Qms 10.3
Qts 0.41
Vas 191.9 dm^3 (6.78 ft^3)
Sd 1212 cm^2 (187.86 in^2)
Xmax (4) 9.00 mm
Xdamage (5) 17.5 mm
Mms 187.5 g
Bl 24.5 N/A
Le 1.26 mH
Mmd 139.8 g
Cms 0.08 mm/N
Rms 4.58 kg/s
Eta Zero 2.49 %
EBP 88 Hz


PART NUMBER (P/N)
Push Terminals - 8 Ohm Version 04604200



Notes:
(1) 2 Hours Test According to AES 2-1984 Rev. 2003
(2) Maximum power is defined as 3dB greater than nominal power.
(3) Treated Polycotton
(4) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
(5) Maximum excursion before permanent damage
Quick acoustic specs
Nominal Impedance 8 Ohm
Minimum Impedance 6.6 Ohm
AES Power Handling (1) 1000 W
Sensitivity (1W/1m) 98 dB
Frequency Range 38÷2500 Hz
Flux Density 1.3 T
Magnet Neodymium Slug
Demodulation No
Cone Surround (2) Triple Roll
Fs 38 Hz
Re 5.5 Ohm
Qes 0.43
Qms 10.3
Qts 0.41
Vas 191.9 dm^3 (6.78 ft^3)
Sd 1212 cm^2 (187.86 in^2)
Xmax (3) 9.00 mm
Xdamage (4) 17.5 mm
Mms 187.5 g
Bl 24.5 N/A
Le 1.26 mH
Mmd 139.8 g
Cms 0.08 mm/N
Rms 4.58 kg/s
Eta Zero 2.49 %
EBP 88 Hz



Note:
(1) 2 Hours Test According to AES 2-1984 Rev. 2003
(2) Treated Polycotton
(3) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
(4) Maximum excursion before permanent damage
Quick mechanical specs
Nominal Diameter 460 mm (18 in)
Overall Diameter 460 mm (18.11 in)
Bolt Circle Diameter 440 mm (17.32 in)
Baffle Cutout Diameter 422 mm (16.61 in)
Depth 202 mm (7.95 in)
Flange and Gasket Thickness 14 mm (0.55 in)
Net Weight 6.7 kg (14.8 lb)
Shipping Box
(Single Carton Box)		 503 x 500 x 258 mm
(19.8 x 19.7 x 10.2 in)
Shipping Weight 7.8 kg (17.2 lb)