SICA Z008402 18 K 4 PL 8Ω 2000W ΜΕΓΑΦΩΝΟ ΜΕ ΜΑΓΝΗΤΗ ΝΕΟΔΥΜΙΟΥ 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

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 38 - 2500 Hz
    Voice Coil Diameter 4“, 100 mm
    Winding Material Aluminium
    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) 38 Hz
    DC Resistance (Re) 5.5 Ohm
    BL Product (BL) 24.5 N/A
    Diaphragm Mass inc. Airload (Mms) 163 grams
    Mechanical Compliance of Suspension (Cms) 0.11 mm/N
    Rms 4.42 Kg/s
    Electromagnetic Q (Qes) 0.35
    Mechanical Q (Qms) 8.75
    Total Q (Qts) 0.34
    Compliance Equivalent Volume (Vas) 7.37 ft³, 208.8 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) 1.36 mH
    Diaphragm mass (Mmd) 141 g
    Eta Zero 3.14 %

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

• 95 dB Sensitivity 1 W / 1 m
• 1500 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 Subwoofers