MASTER AUDIO LSN18/4 – 18″ professional ferrite subwoofer 4Ω 800Wrms 97dB

	MASTER AUDIO LSN18/4 - 18" professional ferrite subwoofer 4Ω 800Wrms 97dB remove	EMINENCE EDP18A Delta Pro 18 18'' 500 W 8 Ohm SPEAKER - Alu Basket remove	CELESTION T5460AWD WOOFER 18'' FTR18-4080FD PRO AUDIO 1000W remove	SICA Z008392 18 F 4 CP 4Ω 1400W PROFESSIONAL SPEAKER NEODYMIUM 18'' remove	BMS speaker 18" Neodymium 18N830 1100W 8Ohm remove	Faital Pro FP18HP1020A Speaker High Performance Series - 18" 8 Ohm 1000W remove
Name	MASTER AUDIO LSN18/4 - 18" professional ferrite subwoofer 4Ω 800Wrms 97dB remove	EMINENCE EDP18A Delta Pro 18 18'' 500 W 8 Ohm SPEAKER - Alu Basket remove	CELESTION T5460AWD WOOFER 18'' FTR18-4080FD PRO AUDIO 1000W remove	SICA Z008392 18 F 4 CP 4Ω 1400W PROFESSIONAL SPEAKER NEODYMIUM 18'' remove	BMS speaker 18" Neodymium 18N830 1100W 8Ohm remove	Faital Pro FP18HP1020A Speaker High Performance Series - 18" 8 Ohm 1000W remove
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SKU	LSN18/4	EDP18A	T5460	Z008392	BMS18N830LV2	FP18HP1020A
Rating
Price	€260.39 €207.50 incl. GR VAT	€395.56 €242.72 incl. GR VAT	€395.18 €343.48 incl. GR VAT	€339.97 €281.69 incl. GR VAT	€783.07 €665.62 incl. GR VAT	€654.45 €401.60 incl. GR VAT
Stock	Only 2 left in stock (can be backordered)	Only 1 left in stock	Available on backorder	Available on backorder	Available on backorder	Available on backorder
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Description
Content	Professional subwoofer 460 mm., cloth edge, paper cone. - RMS power output: 800 watt - Impedance: 4 Ohm - Sensitivity: 97 dB - Frequency response: 35-2000 Hz - Magnet weight: 3.5kg - Voice coil diameter: 100 mm - Recessed diameter: 420 mm - Mounting depth: 195 mm PARAMETERS - Fs: 37 Hz - Qes: 0.39 - Qms: 4.10 - Qts: 0.36	DELTA PRO Serie 400W Recommended for professional audio in both sealed and vented enclosures. Ideal for full-range, mid/hi, and monitor wedges. SPECIFICATION Nominal Basket Diameter 18“, 457 mm Nominal Impedance 8 ohms Power Rating Watts 500 W / Music Program 1000 W Resonance 28 Hz Usable Frequency Range 37 Hz - 250 Hz Sensitivity 96 Magnet Weight 67 oz. Gap Height 0.38“, 9.53 mm Voice Coil Diameter 2.5“, 63.5 mm THIELE & Small Parameters Resonant Frequency (fs) 28 Hz DC Resistance (Re) 5.3 Coil Inductance (Le) 3.43 mH Mechanical Q (Qms) 10.38 Electromagnetic Q (Qes) 0.33 Total Q (Qts) 0.32 Compliance Equivalent Volume (Vas) 493.19 liters / 17.41 cu. ft. Peak Diaphragm Displacement Volume (Vd) 796.00 cc Mechanical Compliance of Suspension (Cms) 0.25 mm/N BL Product (BL) 18.9 T-M Diaphragm Mass inc. Airload (Mms) 128.1 grams Efficiency Bandwidth Product (EBP) 84 Maximum Linear Excursion (Xmax) 6.7 mm Surface Area of Cone (Sd) 1188.0 cm² Maximum Mechanical Limit (Xlim) 15.0 mm MOUNTING Information Recommended Enclosure Volume Sealed N/A Vented 85-297 liters/3.0-10.5 cu. ft. Overall Diameter 18.00“, 457.20 mm Baffle Hole Diameter 16.57“, 420.88 mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.28“, 7.11 mm Mounting Holes B.C.D. 17.25“, 438.15 mm Depth 8.13“, 206.50 mm MATERIALS of Construction Copper voice coil Polyimide former Ferrite magnet Vented and extended core Die-cast aluminum basket Paper Cone Cloth cone edge Solid composition paper dust cap	1000Wrms continuous power handling (AES Standard) Flexirol™ technology for greater excursion control Double suspension for exceptional linearity at the highest excursions Saturated gap technology for lower harmonic distortion Extremely low frequency response, down to 30Hz Smart chassis design minimises acoustic distortion
Nominal diameter (mm/in)	457/18
Power Rating (AES, W rms)	1000
Nominal impedance (Ω)	8
Voice coil diameter (mm/in)	100/4
Magnet type	Ferrite
Magnet weight (kg/oz)	3.1/110
Chassis type	Cast aluminium
Sensitivity (dB)	97
Frequency range (Hz)	30-2500
Coil material	Round copper
Former material	Glass fibre
Cone material	Glass loaded paper with weather resistant impregnation
Surround material	Cloth-sealed
Suspension	Double
Xmax (mm/in)	6.0/0.24
Gap depth (mm/in)	10.0/0.39
Voice coil winding width (mm/in)	22.0/0.87

• Shape Cylindrical
• Product type Cone driver
• Brand Sica
• Frequency coverage type Sub
• Dimensional category 18 inch
• Front chape Cylindrical
• Magnet type Ferrite
• Basket masterial Aluminium
• Nominal impedance 4 ohm
• Nominal power handling 700 W
• Max power handling 1400 W
• Sensitivity 97.9 dB
• Voice coil diameter 4 inch
• Flux density 1.12 T
• External diametre 462 mm
• Mounting diametre 415 mm
• Depth 203.5 mm
• Depth after front 188.5 mm
• Front thickness 15 mm
• Diamètre aimant (mm) 220 mm
• Weight 13.9 kg
• Fs 36.9 Hz
• Re 3.25 ohm
• Qes 0.29
• Qms 9.03
• Qts 0.28
• Vas 181.9 L
• Sd 1164.2 cm²
• Cms 95 µm/N
• Efficiency 3.02 %
• Xmax 6 mm
• Mms 196.2 gr
• BL 22.55 T.m
• Le 1.03 mH
• EBP 127
• Dome material Paper
• Cone material Paper
• Surround material Cloth
• Shipping weight 13.9 kg

• 96 dB Sensitivity 1 W / 1 m
• 1.100 W Power Handling
• 4" Copper Sandwich Voice Coil for low Power Compression
• Neodymium Magnet System
• Double treated Cone for Water Protection
• Triple Aluminum demodulating Rings for ultra low Distortion
• Optimal for high Output Suwoofers

Nominal Specifications

    Nominal Diameter 18“, 460 mm
    Overall Diameter 18.11“, 460 mm
    Bolt Circle Diameter 17.32“, 440 mm
    Baffle Cutout Diameter 16.61“, 422 mm
    Depth 7.95“, 202 mm
    Flange and Gasket Thickness 0.55“, 13.9 mm


Electrical Specifications

    Minimum Impedance 6.6 Ohm
    Nominal Impedance 8 Ohm
    Nominal Power Handling*** 1,000 W
    Maximum Power Handling**** 2,000 W
    Sensitivity (1W/1m) 99 dB
    Frequency Range 35 - 1600 Hz
    Voice Coil Diameter 4“, 100 mm
    Winding Material Copper
    Former Material Glass Fiber
    Winding Depth 0.9“, 23 mm
    Magnetic Gap Depth 0.47“, 12 mm
    Flux Density 1.3 T


THIELE & SMALL Parameters

    Resonant Frequency (fs) 35 Hz
    DC Resistance (Re) 5.4 Ohm
    BL Product (BL) 27.2 N/A
    Diaphragm Mass inc. Airload (Mms) 182 grams
    Mechanical Compliance of Suspension (Cms) 0.11 mm/N
    Rms 4.1 Kg/s
    Electromagnetic Q (Qes) 0.29
    Mechanical Q (Qms) 9.74
    Total Q (Qts) 0.28
    Compliance Equivalent Volume (Vas) 7.74 ft³, 219.2 dm³
    Surface Area of Cone (Sd) 180.7“², 1,166 cm²
    Maximum Linear Excursion (Xmax)* 9.5 mm
    Xdamage** 17.5 mm
    Coil Inductance (Le) 1.7 mH
    Diaphragm mass (Mmd) 159.5 g
    Eta Zero 3.1 %

Notes

    *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
    **Maximum excursion before permanent damage
    ***2 Hours Test According to AES 2-1984 Rev. 2003
    ****Maximum power is defined as 3dB greater than nominal power