SF-18N452PS

18" Sub-Woofer (Neodymium), 1800 W

  • 18 inch Neodymium based high power handling transducer

  • Dual Forced Air-Venting 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-18N452 is a Neodymium based very high power handling and efficiency transducer specially designed to provide powerful and accurate sub-bass frequencies with low distortion and low power compression.

The SF-18N452 uses a fibre loaded cone assembly along a large triple roll surround, this combination provides remarkable strength and control. Double silicon spider sysetm ensures excellent control during large excursions. The Dual-forced air venting system provides a very efficient voice coil ventilation to minimize the power compression.

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

97.5 dB

Sensitivity

1800 Watts

Power

8 Ω

Impedance
Additional Info

General Specifications

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Nominal Diameter :   18.0 inches
Nominal Power Handling :   1800 Watts
Continous Power Handling :   3600 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

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Nominal Impedance :   8 Ω
Minimum Impedance :   6.3 Ω
Frequency :   35 Hz ~ 1.5 kHz
Magnet Size :   105 * 50 * 15 mm
Magnet Type :   Neodymium
Magnet Grade :   N40
Sensitivity :   97.5 dB

Thiele - Small Parameters

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Resonance Frequency (Fs) :        31 Hz
DC Resistance (Re) :        5.2 Ω
Electrical Factor :        0.25 Qes
Mechanical Factor :        6.0 Qms
Total Factor :        0.24 Qts
Equivalent Cas Air Loaded (Vas) :       245.0 dm³ (8.65 ft³)
Effective Piston Area (Sd) :       1200.0 cm² (186.0 in²)
Voice coil Inductance @ 1kHz (Le) :       2.60 mH
Max. Linear Excursion (Xmax) :      ± 9.0 mm
Effective Moving Mass (Mms) :       235.0 g
BI Factor (BI) :       30.20 T x m
Half-space Efficiency (Eff.) :       2.54 %

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 :   223 mm (8.78 in)
Volume Occupied :   5.5 litres (0.22 ft³ )
Net Weight :   10.9 kg
Shipping Weight :   12.0 kg
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