D.A.S. Audio 15P

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97dB
• Frequency response 30 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 40Hz
• Mechanical quality factor QMS 6.85
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 11mm
• Air volume displaced at xmax VD 516cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.4Ω
• Inductance (1kHz, estimated) LE 2.4mH
• VC Diameter 77mm
• Winding height HVC 15mm
• Winding material Copper
• Former material Glass Fibre Reinforced Polymer

Magnet

• Force factor Bl 15.9N/A
• Motor constant Bl/√RE 6.29N/√W
• Air gap height HAG 7mm
• Material Ferrite

Diaphragm

• Effective diameter 331mm
• Effective area SD 860cm²
• Moving mass MMS 70g
• Moving mass (without air load) MMD 52.8g

Suspensions

• Stiffness KMS 4.51N/mm
• Compliance CMS 222µm/N
• Equivalent volume to the compliance VAS 233L
• Mechanical resistance RMS 2.57N·s/m
• Surround material Polycotton
• Spider material Polycotton

Dimensions

• Nominal diameter 15″
• 381mm
• Baffle cutout diameter 359mm
• Volume occupied by the driver (estimated) 4.3L
• Frame material Injected Aluminum