D.A.S. Audio 15SX

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.7dB
• Frequency response 35 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34.5Hz
• Mechanical quality factor QMS 12.71
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 718cm³
• Power handling P 800W
• Program power Pmax 1600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 2.05mH
• VC Diameter 102mm
• Winding material Copper

Magnet

• Force factor Bl 23.8N/A
• Motor constant Bl/√RE 9.64N/√W
• Material Ferrite

Diaphragm

• Effective diameter 338mm
• Effective area SD 897cm²
• Moving mass MMS 158g
• Moving mass (without air load) MMD 140g

Suspensions

• Stiffness KMS 7.41N/mm
• Compliance CMS 135µm/N
• Equivalent volume to the compliance VAS 154L
• Mechanical resistance RMS 2.69N·s/m

Dimensions

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