Recommended for professional audio as a mid-bass or floor monitor in a sealed enclosure. Also suitable as a woofer in vented, bass guitar or PA enclosures.
SPECIFICATION Nominal Basket Diameter 15", 381 mm Nominal Impedance 4 ohms Power Rating Watts 500 W / Music Program 1000 W Resonance 38.7 Hz Usable Frequency Range 42 Hz - 3.2 kHz Sensitivity 96 Magnet Weight 56 oz. Gap Height 0.375", 9.53 mm Voice Coil Diameter 2.5", 63.5 mm
THIELE & Small Parameters Resonant Frequency (fs) 38.7 Hz DC Resistance (Re) 3.27 Coil Inductance (Le) 1.09 mH Mechanical Q (Qms) 7.74 Electromagnetic Q (Qes) 0.50 Total Q (Qts) 0.47 Compliance Equivalent Volume (Vas) 221.6 liters / 7.8 cu. ft. Peak Diaphragm Displacement Volume 411cc Mechanical Compliance of Suspension 0.215 mm/N BL Product (BL) 11.22 T-M Diaphragm Mass inc. Airload (Mms) 78.6 grams Efficiency Bandwidth Product (EBP) 77.9 Maximum Linear Excursion (Xmax) 4.80 mm Surface Area of Cone (Sd) 856.3 cm² Maximum Mechanical Limit (Xlim) 16.5 mm
MOUNTING Information Recommended Enclosure Volume Sealed 36.8-42.5 liters/1.3-1.5 cu.ft. Vented 85-167 liters/3-5.9 cu.ft. Overall Diameter 15.15", 384.8 mm Baffle Hole Diameter 13.77", 349.6 mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.25", 6.4 mm Mounting Holes B.C.D. 14.56", 369.9 mm Depth 6.3", 160 mm
MATERIALS of Construction Copper voice coil Polyimide former Ferrite magnet Vented and extended core Pressed steel basket Paper Cone Cloth cone edge Solid composition paper dust cap
Very good for the price.
Sound is clear and deep.
They are louder than what the rating may suggest. I have pushed a pair of these harder than i should and they love it. I have them installed in a set of bins for a small venue.
The bass is very punchy but i would like the hertz rating a little lower, say 35hz for something present as a bass driver but most would not notice. I like to give the kick a peak at around 45 hz and these react extremely well.