Replacement Speaker For Mackie SWA-1801, SWA-1801Z Sub-Woofer 18" Speaker 4 Ohms

Description

Brand
NEW
Aftermarket
18"Woofer Speaker with 4"Voice Coil at 4 Ohms.
For
Mackie SWA1801 & SWA 1801Z
(Speaker Only)
P/N 0012184, LC 18/4003-4.
Highlights :
High BL Low Frequency driver with deep, punchy bass.
4" Diameter inside/outside copper voice coil on fiberglass Former.
2,000 watt continuous program power Handling.
Forced air ventilation and 15 mm top plate for minimum power compression
Dual spider design with silicon-base damping control
Triple roll surround and corugated straight cone geometry.
Good sensitivity,low distortion,extraordinary definition.
Specification :
Nominal Diameter : 18"
Impedance : 4 ohm.
Power Handling (rms) :1000 watts.
Power Handling (max) :2000 watts.
Frequency Response : 25hz - 1000hz.
Sensitivity : 95.5db 2.83v/1m.
Voice Coil Diameter : 4"
Voice Coil Material : Copper
Voice Coil Winding Depth : 1"(25mm)
Number of layers : 2
Top Plate thickness : 0.6"(15mm).
Cone material : No Pressed pulp
Cone Design : Straight.
Surround Material : Poly Cotton.
Surround Design : Triple Roll.
Thiele/Small Parameters:
Resonance Frequency : 29Hz.
Mechanical Factor : 7.6
Electrical Factor : 0.29
Total Factor : 0.28
BL Factor : 24.6T.M
Effective Moving Mass : 200g
Equivalent Cas air Load : 340 liters
Effective Piston area : 0.122M2
Max.Linear Excursion(mathematical) 8.8m.
Voice Coil induction at 1KHz : 2,5mH.
Half space efficiency :2.63%
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