SF-18X451

18" Sub-Woofer (Bass), 1500 Watts

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

  • Dual Forced Hyperventing System guarantees a very efficient voice coil ventilation

  • Best choice for LONG-THROW PUNCH

  • 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-18X451 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

 

4.5 inch

Voice Coil

97.0 dB

Sensitivity

1500 Watts

Power

8 Ω

Impedance
Additional Info

General Specifications

Your Subtitle Goes Here
3
Nominal Diameter :   18.0 inches
Nominal Power Handling :   1500 Watts
Continous Power Handling :   3000 Watts
Voice Coil Size :   4.5” / 114.3 mm
Winding Type :   Inside - Outside
Winding Material :   Copper
Chassis Material :   Diecast Aluminium
Cone Surround :   Triple Roll
Spider :   Dual spider

Technical Specifications

Your Subtitle Goes Here
Nominal Impedance :   8 Ω
Minimum Impedance :   6.8 Ω
Frequency :   30 Hz ~ 1 kHz
Magnet Size :   253 * 140 * 30 mm
Magnet Type :   Ferrite
Magnet Grade :   Y35
Sensitivity :   97.0 dB
Flux Density :   1.12 T

Thiele - Small Parameters

Your Subtitle Goes Here
3
Resonance Frequency (Fs) :        30 Hz
DC Resistance (Re) :        5.4 Ω
Electrical Factor :        0.29 Qes
Mechanical Factor :        6.7 Qms
Total Factor :        0.28 Qts
Equivalent Cas Air Loaded (Vas) :       220.0 dm³ (7.77 ft³)
Effective Piston Area (Sd) :       1200.0 cm² (186.0 in²)
Voice coil Inductance @ 1kHz (Le) :       1.38 mH
Max. Linear Excursion (Xmax) :      ± 14.0 mm
Usable Escues (Xvar) :      ± 15.5 mm
Effective Moving Mass (Mms) :       260.0 g
BI Factor (BI) :       30.5 T x m

Dimensions & Mounting Information

Your Subtitle Goes Here
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 :   16.9 kg
Shipping Weight :   19.5 kg

Related Products