SF-18X550PS

Chrome

18" Sub-Woofer (Bass), 2000 Watts

  • 18inch Low Frequency Transducer

  • Exlusive Heavy-duty, well vented, Cast Aluminium Chassis for increased rigidity

  • Premium choice for the most demanding of high performance, high power sub-bass applications

  • 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

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