DB Drive P5W 12

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 54.8Hz
• Mechanical quality factor QMS 7.01
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.44

Large signal parameters

• Power handling P 500W
• Program power Pmax 1500W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.4Ω
• Inductance (1kHz, in series) LE 2.4mH

Magnet

• Force factor (in series) Bl 20.8N/A
• Motor constant Bl/√RE 8.22N/√W

Diaphragm

• Effective diameter 253mm
• Effective area SD 502cm²
• Moving mass MMS 87.4g
• Moving mass (without air load) MMD 79.4g

Suspensions

• Stiffness KMS 10N/mm
• Compliance CMS 100µm/N
• Equivalent volume to the compliance VAS 35.8L
• Mechanical resistance RMS 4.29N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Volume occupied by the driver (estimated) 2.4L