SF-18X550PS
Chrome
18" Sub-Woofer (Bass), 2000 Watts
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18inch Low Frequency Transducer
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Exlusive Heavy-duty, well vented, Cast Aluminium Chassis for increased rigidity
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Premium choice for the most demanding of high performance, high power sub-bass applications
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Warm tonal sound
The SF-18X550PS Chrome sets new benchmarks and provides powerful and accurate bass frequencies with minimal distortion and power compression.
Ideal for: Scoop Bins, conventional reflex cabinets and horn loaded systems and in a wide variety of professional sub-woofer applications.
5.0 inch
Voice Coil
98.0 dB
Sensitivity
2000 Watts
Power
8 Ω
Impedance
Additional Info
General Specifications
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| Nominal Diameter | : 18.0 inches |
| Nominal Power Handling | : 2000 Watts |
| Continous Power Handling | : 4000 Watts |
| Voice Coil Size | : 5.0” / 127.5 mm |
| Winding Type | : Inside - Outside |
| Winding Material | : Copper |
| Chassis Material | : Diecast Aluminium |
| Cone Surround | : M Roll |
| Spider | : Double |
Technical Specifications
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| Nominal Impedance | : 8 Ω |
| Frequency | : 35 Hz ~ 2 kHz |
| Magnet Size | : 280 * 140 * 25 mm |
| Magnet Type | : Ferrite |
| Magnet Grade | : Y35 |
| Sensitivity | : 98.0 dB |
| Flux Density | : 1.18 T |
Thiele - Small Parameters
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| Resonance Frequency (Fs) | : 40.5 Hz |
| DC Resistance (Re) | : 5.3 Ω |
| Electrical Factor | : 0.24 Qes |
| Mechanical Factor | : 15.42 Qms |
| Total Factor | : 0.24 Qts |
| Equivalent Cas Air Loaded (Vas) | : 203.8 dm³ (7.19 ft³) |
| Effective Piston Area (Sd) | : 1164 cm² (180.4 in²) |
| Voice coil Inductance @ 1kHz (Le) | : 1.33 mH |
| Max. Linear Excursion (Xmax) | : ± 11.5 mm |
| Effective Moving Mass (Mms) | : 215.3 g |
| BI Factor (BI) | : 31.0 T x m |
| Efficiency Bandwidth Product (EBP) | : 138 Hz |
| Ref. Efficiency (Eff.) | : 2.88 % |
Dimensions & Mounting Information
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| Overall Diameter | : 474 mm (18.6 in) |
| Bolt Circle Diameter | : 459 mm (18.1 in) |
| Baffle Cut-Out Diameter | : 415 mm (16.3 in) |
| Depth | : 178 mm (7.0 in) |
| Flange Height | : 14.5 mm (0.57 in) |
| Net Weight | : 20.5 kg |
| Shipping Weight | : 22.6 kg |
