Eighteen Sound 18SDS 18 Sound Bass 18" .65 Ohm Neo Sub

This item is brand-new, factory sealed.

General specifications
* Nominal Diameter 460 mm (18 )
* Nominal Impedance 2 OHMS
* AES Power (1) 1800 W
* Program Power (2) 3600 W
* Sensitivity (3) 93 dB
* Frequency Range 29 to 4000 Hz
* Recomm. enclosure volume 80 to 150 L (2.83 to 5.30 cu.ft)
* Minimum Impedance 1.9 OHMS
* Max peak to peak excursion 33 mm (1.30 in)
* Voice coil diameter 135 mm (5.3 in)
* Voice coil winding material CCAW
* Voice coil
Magnetic gap height 45 mm
18 mm (1.77 in
0.71 in)
* Suspension Triple Roll, Polycotton
* Cone Ribbed, Water repellent, Treated Paper
* Thiele small parameters (4)
* Fs 29 Hz
* Re 1.3 O
* Sd 1225.4 sq.cm (189.9 sq.in)
* Qms 7.0
* Qes 0.18 Free air Impedance curve
* Qts 0.17
* Vas 136 L (4.79 cu.ft)
* Mms 444 g (0.98 lb)
* BL 24.4 Tm
* Xmax (5) +/-18 mm (+/-0.71 in)
* Xvar (6) +/-15 mm (+/-0.59 in)
* Le (1 kHz) 0.93 mH
* Ref. Efficiency (half space) 2.0 %
* Mounting informations
* Overall diameter 462 mm (18.2 in)
* N. of mounting holes 8
* Mounting holes diameter 8.5 mm (0.33 in)
* Bolt circle diameter 440 mm (17.3 in)
* Baffle cutout diameter 417 mm (16.4 in)
* Total depth 237 mm (9.3 in)
* Flange and gasket thickness 24 mm (0.9 in)
* Net weight 18 kg (39.7 lb)
* Shipping weight 18.5 kg (40.8 lb)
* DSS Double Silicon Spider, ISV Interleaved Sandwich Voice Coil