Pride HP 12 D2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 29Hz
• Mechanical quality factor QMS 3.13
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 19mm
• Air volume displaced at xmax VD 912cm³
• Power handling P 1250W
• Program power Pmax 2500W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.2Ω
• Inductance (1kHz, in series, estimated) LE 3.35mH
• VC Diameter 76.2mm

Magnet

• Force factor (in series) Bl 22N/A
• Motor constant Bl/√RE 12.3N/√W
• Weight 4.2kg
• Material Ferrite

Diaphragm

• Effective diameter 247mm
• Effective area SD 480cm²
• Moving mass MMS 327g
• Moving mass (without air load) MMD 320g

Suspensions

• Stiffness KMS 10.9N/mm
• Compliance CMS 92µm/N
• Equivalent volume to the compliance VAS 30L
• Mechanical resistance RMS 19.1N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Baffle cutout diameter 280mm
• Overall depth 146mm
• Volume occupied by the driver (estimated) 2.5L
• Net weight 12.5kg
• Frame material Aluminium