275,00 €  
incl. 19 % vat - excl.

FEATURES:

SPECIFICATION
[ Nominal Basket Diameter 18"", 457.2mm
[ Nominal Impedance* 8 ohms
[ Power Rating: Watts 800, Music Program: 1600 W
[ Resonance: 25Hz
[ Usable Frequency Range: 40Hz-800Hz
[ Sensitivity: 97
[ Magnet Weight: 109 oz.
[ Gap Height 0.375"", 9.53mm
[ Voice Coil Diameter: 4"", 101.6mm

THIELE & SMALL PARAMETERS
[ Resonant Frequency (fs): 25Hz
[ DC Resistance (Re): 5.20
[ Coil Inductance (Le): 1.67mH
[ Mechanical Q (Qms): 8.18
[ Electromagnetic Q (Qes): 0.32
[ Total Q (Qts): 0.31
[ Compliance Equivalent Volume (Vas): 548.7 liters / 19.4 cu. ft.
[ Peak Diaphragm Displacement Volume (Vd): 556cc
[ Mechanical Compliance of Suspension (Cms): 0.29mm/N
[ BL Product (BL): 18.8 T-M
[ Diaphragm Mass inc. Airload (Mms): 138 grams
[ Efficiency Bandwidth Product (EBP): 79
[ Maximum Linear Excursion (Xmax) 4.8mm
[ Surface Area of Cone (Sd): 1159 cm²
[ Maximum Mechanical Limit (Xlim): 16mm

MOUNTING INFORMATION
[ Recommended Enclosure: Sealed: - /Vented: 96-198 liters/ 3.4-7 cu.ft.
[ Overall Diameter: 18"", 457.2mm
[ Baffle Hole Diameter: 16.56"", 420.5mm
[ Front Sealing Gasket: fitted as standard
[ Rear Sealing Gasket: fitted as standard
[ Mounting Holes Diameter: 0.28"", 7.1mm
[ Mounting Holes B.C. D.: 17.25"", 438.2mm
[ Depth: 8.15"", 207mm
[ Shipping Weight: 25.2 lbs., 11.4 kg
[ Shipping Weight 28.9 lbs., 13.1 kg

MATERIALS OF CONSTRUCTION
[ Coil Construction: Copper voice coil
[ Coil Former: Polyimide former
[ Magnet Composition: Ferrite magnet
[ Core Details: Vented and Extended core
[ Basket Materials: Die-cast aluminium basket
[ Cone Composition Paper Cone
[ Cone Edge Composition: Cloth cone edge
[ Dustcap Composition: Solid composition paper dust cap



";