SF-18X505
18" Extended Sub-Woofer, 2200 Watts
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18 inch Extended Low Frequency speaker with minimum power compression and incredible power handling
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Best choice for Ground-shaking Heavy Bass applications. (280*30mm Magnet)
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Dual Spider designed with Silicon based damping control
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Delivers deep, powerful bass in compact bass reflex as well as horn loaded sub-woofer design
The SF-18X505 features a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround; this combination provides remarkable strength and an incredibly linear frequency response characteristic
Ideal for: Scoop Bins, conventional reflex cabinets, horn loaded systems and in a wide variety of professional sub-woofer applications
5.0 inch
Voice Coil
97.0 dB
Sensitivity
2200 Watts
Power
8 Ω
Impedance
Additional Info
General Specifications
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Nominal Diameter | : 18.0 inches |
Nominal Power Handling | : 2200 Watts |
Continous Power Handling | : 4400 Watts |
Voice Coil Size | : 5.0” / 127.5 mm |
Winding Type | : Outside |
Winding Material | : Copper |
Chassis Material | : Diecast Aluminium |
Cone Surround | : Triple Roll |
Spider | : Dual Silicon Spider |
Technical Specifications
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Nominal Impedance | : 8 Ω |
Minimum Impedance | : 6.7 Ω |
Frequency | : 30 Hz ~ 1100 Hz |
Magnet Size | : 280 * 140 * 30 mm |
Magnet Type | : Ferrite |
Magnet Grade | : Y35 |
Sensitivity | : 97.0 dB |
Thiele - Small Parameters
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Resonance Frequency (Fs) | : 28 Hz |
DC Resistance (Re) | : 5.4 Ω |
Electrical Factor | : 0.39 Qes |
Mechanical Factor | : 6.90 Qms |
Total Factor | : 0.37 Qts |
Equivalent Cas Air Loaded (Vas) | : 385 dm³ (13.59 ft³) |
Effective Piston Area (Sd) | : 1700 cm² (263.5 in²) |
Voice coil Inductance @ 1kHz (Le) | : 2.90 mH |
Max. Linear Excursion (Xmax) | : ± 14.0 mm |
Effective Moving Mass (Mms) | : 355.0 g |
BI Factor (BI) | : 30.50 T x m |
Dimensions & Mounting Information
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Overall Diameter | : 465 mm (18.3 in) |
Bolt Circle Diameter | : 445 mm (17.5 in) |
Baffle Cut-Out Diameter | : 424 mm (16.7 in) |
Depth | : 212 mm (8.35 in) |
Volume Occupied | : 6.5 litres (0.26 ft³ ) |
Net Weight | : 21.5 kg |
Shipping Weight | : 23.7 kg |