SF-18X505

18" Extended Sub-Woofer, 2200 Watts

  • 18 inch Extended Low Frequency speaker with minimum power compression and incredible power handling

  • Best choice for Ground-shaking Heavy Bass applications. (280*30mm Magnet)

  • Dual Spider designed with Silicon based damping control

  • 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

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