Rockford Fosgate R2D2-10

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.3dB

Thiele & Small parameters

• Resonance frequency (free air) fS 34.6Hz
• Mechanical quality factor QMS 6.93
• Electrical quality factor QES 0.50
• Total quality factor QTS 0.47

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Air volume displaced at xmax VD 221cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.8Ω
• Inductance (1kHz, in series) LE 3.9mH
• VC Diameter 51mm

Magnet

• Force factor (in series) Bl 12.2N/A
• Motor constant Bl/√RE 6.23N/√W
• Weight 1.22kg

Diaphragm

• Effective diameter 208mm
• Effective area SD 340cm²
• Moving mass MMS 88.9g
• Moving mass (without air load) MMD 84.4g

Suspensions

• Stiffness KMS 4.2N/mm
• Compliance CMS 238µm/N
• Equivalent volume to the compliance VAS 39L
• Mechanical resistance RMS 2.79N·s/m

Dimensions

• Nominal diameter 10″
• 254mm
• Baffle cutout diameter 232mm
• Mounting depth 109mm
• Volume occupied by the driver 1.1L