View this product description in Norwegian.

Features:
 15" driver provides extended low frequency range
 2.5" edgewound voice coil enables 97dB efficiency and 300Wrms (AES standard)
power handling
 Vented magnet assembly for enhanced cooling
 Kevlar-loaded cone with sealed surround and damping for reduced distortion
 Suitable for use in 2-way and 3-way systems
General Specifications:

• Nominal diameter: 381mm/15in
• Power rating: 300Wrms
• Nominal impedance: 8 Ohm
• Sensitivity: 97dB
• Frequency range: 45-3500Hz
• Voice coil diameter: 64mm/2.5in
• Chassis type: Pressed steel
• Magnet type: Ferrite
• Magnet weight: 1.4kg/50oz
• Coil material: Edgewound copper
• Former material: Glass fibre
• Cone material: Kevlar loaded paper
• Surround material: Cloth-sealed
• Suspension: Single
• Xmax: 3.5mm/0.14in
• Gap depth: 8mm/0.31in
• Voice coil winding width: 14.5mm/0.57in

Small Signal Parameters:

• D: 0.33m/12.99in
• Fs: 49.8Hz
• Mms: 82.41g/2.91oz
• Mmd: 68.26g/2.41oz
• Qms: 7.12
• Qes: 0.53
• Qts: 0.50
• Re: 6.48 Ohm
• Vas: 128.19lt/4.53ft3
• Bl: 17.69Tm
• Cms: 0.12mm/N
• Rms: 3.62kg/s
• Le: (at 1kHz)  1.32mH

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: 4.8kg/10.6lb