IMPERO-18C Professional Serie
High power driver recommended for pro audio in vented enclosures. Suited for full-range three -way boxes, bass guitar boxes, and small subwoofers. 4 ohm.
SPECIFICATION
- Nominal Basket Diameter 18", 457.2 mm
- Nominal Impedance 4 ohms
- Power Rating Watts 1200 W / Music Program 2400 W
- Resonance 31.48 Hz
- Usable Frequency Range 36 Hz - 0.82 kHz
- Sensitivity 94.5 dB
- Magnet Weight 109 oz
- Gap Height 0.5", 12.7 mm
- Voice Coil Diameter 4", 101.6 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 31.48 Hz
- DC Resistance (Re) 3.13
- Coil Inductance (Le) 1.09 mH
- Mechanical Q (Qms) 10.13
- Electromagnetic Q (Qes) 0.35
- Total Q (Qts) 0.34
- Compliance Equivalent Volume (Vas) 317.02 liters / 11.19 cu.ft.
- Peak Diaphragm Displacement Volume 942.7 cc
- Mechanical Compliance of Suspension 0.17 mm/N
- BL Product (BL) 16.1 T-M
- Diaphragm Mass inc. Airload (Mms) 147.56 grams
- Efficiency Bandwidth Product (EBP) 89.48
- Maximum Linear Excursion (Xmax) 8.13 mm
- Surface Area of Cone (Sd) 1159 cm²
- Maximum Mechanical Limit (Xlim) 20.1 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed N/A
- Vented 118.9-399.8 liters/4.2-12 cu.ft.
- Overall Diameter 18", 457.2 mm
- Baffle Hole Diameter 16.56", 420.62 mm
- Front Sealing Gasket fitted as standard
- Rear Sealing Gasket fitted as standard
- Mounting Holes Diameter 0.29", 7.36 mm
- Mounting Holes B.C.D. 17.25", 438.1 mm
- Depth 8.31", 211.07 mm
MATERIALS of Construction
- Copper voice coil
- Fiberglass
- Ferrite magnet
- Bumped Vented Extebded core
- Die-cast aluminum basket
- Water Resistant Treated Paper Cone
- Treated Cloth cone edge
- Water Resistant Treated paper dust cap
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