Key Features
- Nominal Diameter: 18"
- Nominal Impedance: 8 ohms
- Power Handling (RMS): 1200 Watts
- Power Handling (Max): 2400 Watts
- Copper Voice Coil
- Polyimide Former
- Ferrite Magnet
- Die-Cast Aluminum Basket
Description
18" Cast Frame Speaker Driver, 8 Ohm, 1200 Watt
Recommended for professional audio and bass as a low distortion sub-woofer in single or multi-driver designs.
Features:
- Copper voice coil with Polyimide former
- Ferrite magnet
- Undercut pole piece with copper shorting ring and Core Periphery Ventilation
- Die-cast aluminum basket
- Acrylic wetlook paper cone and dust cap
- Cloth cone edge
Specifications:
- SPECIFICATION
- Nominal Basket Diameter: 18", 457 mm
- Nominal Impedance*: 8 ohms
- Power Rating**
- Watts: 1200 W
- Music Program: 2400 W
- Resonance: 30 Hz
- Usable Frequency Range: 31 Hz - 0.2 kHz
- Sensitivity***: 94.9 dB
- Magnet Weight: 109 oz.
- Gap Height: 0.375", 9.5 mm
- Voice Coil Diameter: 4", 102 mm
- THIELE & SMALL PARAMETERS
- Resonant Frequency (fs): 30 Hz
- DC Resistance (Re): 6.1 ohms
- Coil Inductance (Le): 4.54m H
- Mechanical Q (Qms): 11.95
- Electromagnetic Q (Qes): 0.35
- Total Q (Qts): 0.34
- Compliance Equivalent Volume (Vas): 254.71 liters / 9 cu.ft.
- Peak Diaphragm Displacement Volume (Vd): 1018.1 cc
- Mechanical Compliance of Suspension (Cms): 0.13 mm/N
- BL Product (BL): 26.75 T-M
- Diaphragm Mass Inc. Airload (MMs): 217 grams
- Efficiency Bandwidth Product (EBP): 86
- Maximum Linear Excursion (Xmax): 8.57 mm
- Surface Area of Cone (Sd): 1188 cm2
- Maximum Mechanical Limit (Xlim): 15.9 mm
- MOUNTING INFORMATION
- Recommended Enclosure Volume
- Sealed: N/a
- Vented: 99.11-226.54 liters / 3.50-8.00 cu.ft.
- Driver Volume Displaced: 0.234 cu.ft. / 6.62 liters
- Overall Diameter: 18", 457.2 mm
- Baffle Hole Diameter: 16.56", 420.6 mm
- Front Sealing Gasket: Yes
- Rear Sealing Gasket: Yes
- Mounting Holes Diameter: 0.28", 7.1mm
- Mounting Holes B.C.D.: 17.25", 438.2mm
- Depth: 8.13", 206.5 mm
- Net Weight: 24 lbs, 10.89 kg
- Shipping Weight: 26 lbs, 11.79 kgs
- MATERIALS OF CONSTRUCTION
- Coil Construction: Copper voice coil
- Coil Former: Polyimide former
- Magnet Composition: Ferrite magnet
- Core Details: Undercut with aluminum shorting ring and Core Periphery Ventilation
- Basket Materials: Die-cast aluminum basket
- Cone Composition: Water resistant paper cone
- Cone Edge Composition: Cloth cone edge
- Dust Cap Composition: Water resistant treated paper dust cap