SICA Z008402 18 K 4 PL 8Ω 2000W PROFESSIONAL SPEAKER NEODYMIUM 18”

• 4'' sandwich voice coil fiberglass former
• Double progressive wave Konex spider
• Cloth suround with DAR technology
• Autoclave waterproof cone treatment
• Balanced neodymium magnet circuit
• Cooling radiator and ventilated voice
• coil to reduce power compression
• 98.1 dB sensitivity

Manual/Εγχειρίδιο 

• Product type Cone driver
• Brand Sica
• Frequency coverage type Sub, Low
• Dimensional category 18 inch
• Front chape Cylindrical
• Magnet type Ferrite
• Basket masterial Aluminium
• Nominal impedance 8 ohm
• Nominal power handling 400 W
• Max power handling 800 W
• Sensitivity 96.9 dB
• Frequency response 30-700 Hz
• Voice coil diameter 3 inch
• Winding depth 20 mm
• Gap height 10 mm
• Flux density 1.08 T
• External diametre 462 mm
• Mounting diametre 415 mm
• Depth 196.5 mm
• Depth after front 181.5 mm
• Front thickness 15 mm
• Diamètre aimant (mm) 180 mm
• Weight 9 kg
• Fs 30.8 Hz
• Re 5.1 ohm
• Qes 0.52
• Qms 3.05
• Qts 0.45
• Vas 340 L
• Sd 1164.2 cm²
• Cms 177 µm/N
• Efficiency 1.84 %
• Xmax 6.5 mm
• Xvar 10.5 mm
• Mms 155 gr
• BL 16.9 T.m
• Le 1.41 mH
• EBP 59
• Dome material Paper
• Cone material Paper
• Surround material Cloth
• Shipping weight 9 kg

• 1400 W continuous program power capacity
• 100 mm (4 in) copper voice coil
• 40 - 2000 Hz response
• 97 dB sensitivity
• Double silicone spider with optimized compliance

• Specifications
  • Nominal diameter460 mm (18.0 in)
  • Nominal impedance8 Ω
  • Minimum impedance6.5 Ω
  • Nominal power handling *700 W
  • Continuous power handling *1400 W
  • Sensitivity (1W/1m) *97.0 dB
  • Frequency range40 - 2000 Hz
  • Voice coil diameter100 mm (4.0 in)
  • Winding materialCopper
  • Former materialGlass Fibre
  • Winding depth21 mm (0.83 in)
  • Magnetic gap depth8 mm (0.31 in)
  • Flux density1.15 T
• Design
  • Surround shapeDouble Roll
  • Cone shapeExponential
  • Magnet materialFerrite
  • SpiderDouble Silicone
  • Pole designStraight Pole
  • Woofer cone treatmentTWP Waterproof Both Sides
  • Recommended enclosure160.0 dm3 (5.65 ft3)
  • Recommended tuning39 Hz
• Parameters *
  • Fs30 Hz
  • Re5.3 Ω
  • Qes0.25
  • Qms8.8
  • Qts0.24
  • Vas297.0 dm3 (10.5 ft3)
  • Sd1134.0 cm2 (175.8 in2)
  • η₀3.1 %
  • Xmax8.0 mm
  • Xvar8.0 mm
  • Mms170 g
  • Bl26.0 Txm
  • Le2.1 mH
  • EBP120 Hz
• Mounting And Shipping Info
  • Overall diameter480 mm (18.0 in)
  • Bolt circle diameter440 mm (17.3 in)
  • Baffle cutout diameter422.0 mm (16.6 in)
  • Depth202 mm (7.95 in)
  • Flange and gasket thickness16 mm (0.62 in)
  • Air volume occupied by driver9.5 dm3 (0.33 ft3)
  • Net weight12.1 kg (26.6 lb)
  • Shipping units1
  • Shipping weight14.0 kg (30.8 lb)
  • Shipping box520x520x240 mm (20.5x20.5x9.4 in)

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 7.65“, 194.3 mm
    Flange and Gasket Thickness 0.55“, 13.9 mm


Electrical Specifications

    Minimum Impedance 6.3 Ohm
    Nominal Impedance 8 Ohm
    Nominal Power Handling*** 1200 W
    Maximum Power Handling**** 2400 W
    Sensitivity (1W/1m) 98 dB
    Frequency Range 35 - 1600 Hz
    Voice Coil Diameter 4“, 100 mm
    Winding Material Kupfer
    Former Material Glass Fiber
    Winding Depth 1.14“, 28.9 mm
    Magnetic Gap Depth 0.47“, 12 mm
    Flux Density 1.22 T


THIELE & SMALL Parameters

    Resonant Frequency (fs) 35 Hz
    DC Resistance (Re) 5 Ohm
    BL Product (BL) 24.8 N/A
    Diaphragm Mass inc. Airload (Mms) 211.8 grams
    Mechanical Compliance of Suspension (Cms) 0.098 mm/N
    Rms 4.19 Kg/s
    Electromagnetic Q (Qes) 0.38
    Mechanical Q (Qms) 11.1
    Total Q (Qts) 0.37
    Compliance Equivalent Volume (Vas) 6.74 ft³, 190.8 dm³
    Surface Area of Cone (Sd) 181.97“², 1174 cm²
    Maximum Linear Excursion (Xmax)* 12.45 mm
    Xdamage** 21 mm
    Coil Inductance (Le) 1.26 mH
    Diaphragm mass (Mmd) 189.1 g
    Eta Zero 2.1 %

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