View this product description in Norwegian.

Features:
 High output 15" bass and mid-range driver
 Efficient magnet assembly enables 99dB sensitivity and 400Wrms (AES standard)
power handling
 3" high temperature copper voice coil wound on polyimide for increased reliability
 Double roll surround for greater excursion control
 Superb price/performance ratio
General Specifications:

• Nominal diameter: 381mm/15in
• Power rating: 400Wrms
• Nominal impedance: 8 Ohm
• Sensitivity: 99dB
• Frequency range: 40-3000Hz
• Voice coil diameter: 75mm/3in
• Chassis type: Pressed steel
• Magnet type: Ferrite
• Magnet weight: 2.44kg/86oz
• Coil material: Round copper
• Former material: Polyimide
• Cone material: Kevlar loaded paper
• Surround material: Cloth-sealed
• Suspension: Single
• Xmax: 2mm/0.08in
• Gap depth: 8mm/0.31in
• Voice coil winding width: 12mm/0.47in

Small Signal Parameters:

• D: 0.33m/12.99in
• Fs: 45Hz
• Mms: 91.85g/3.24oz
• Mmd: 77.70g/2.74oz
• Qms: 4.20
• Qes: 0.42
• Qts: 0.38
• Re: 5.70 Ohm
• Vas: 141.2lt/4.99ft3
• Bl: 18.70Tm
• Cms: 0.14mm/N
• Rms: 6.13kg/s
• Le: (at 1kHz)  1.08mH

Mounting Information:

• Overall diameter: 385mm/15.16in
• Overall depth: 163mm/6.42in
• Cut-out diameter: 352mm/13.86in
• Mounting slot dimensions: 9.2mm x 6.2mm/0.36in x 0.24in
• Number of mounting slots: 8
• Mounting PCD range: 369mm/14.56in
• Unit weight: 6.1kg/13.4lb