SF-18N452PS
18" Sub-Woofer (Neodymium), 1800 W
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18 inch Neodymium based high power handling transducer
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Dual Forced Air-Venting System guarantees a very efficient voice coil ventilation
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Best choice for LONG-THROW PUNCH
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Dual Spider designed with Silicon based damping control
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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 |
