High efficiency 18" woofer that excels in both vented and horn-loaded bass enclosures. Designed to work in small vented enclosures (3.5 to 6.5 cu. ft.) with surprising bass extension and very high output.
Features
- Field-replaceable basket
- Kevlar® reinforced cones for increased strength
- Polyimide-impregnated fiberglass former for higher sensitivity and frequency response
- Die-cast aluminum frame
- High power handling
- 4" diameter edge-wound copper ribbon wire voice coil
- Solderless diffusion welded OFHC copper leads
Specifications
- Power Handling (RMS): 500 Watts
- Power Handling (max): 2,000 Watts
- Impedance: 8 ohms
- Frequency Response: 35 to 1,000 Hz
- Sensitivity: 97.7 dB 1W/1m
- Voice Coil Diameter: 4"
THIELE-SMALL PARAMETERS
- Resonant Frequency (Fs): 35.1 Hz
- DC Resistance (Re): 5.93 ohms
- Voice Coil Inductance (Le): 0.66 mH
- Mechanical Q (Qms): 9.93
- Electromagnetic Q (Qes): 0.35
- Total Q (Qts): 0.34
- Compliance Equivalent Volume (Vas): 11.04 ft.³
- Mechanical Compliance of Suspension (Cms): 0.14 mm/N
- BL Product (BL): 23.12 Tm
- Diaphragm Mass Inc. Airload (Mms): 143.2g
- Maximum Linear Excursion (Xmax): 4.6 mm
- Surface Area of Cone (Sd): 1240 cm²