Rockford Fosgate T0D410

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 31Hz
• Mechanical quality factor QMS 5.50
• Electrical quality factor QES 0.60
• Total quality factor QTS 0.54

Large signal parameters

• Maximum linear excursion xmax 14.8mm
• Air volume displaced at xmax VD 474cm³
• Power handling P 550W
• Program power Pmax 1100W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.2Ω
• Inductance (1kHz, in series) LE 8.5mH
• VC Diameter 76mm

Magnet

• Force factor (in series) Bl 21.3N/A
• Motor constant Bl/√RE 8.55N/√W
• Weight 2.64kg

Diaphragm

• Effective diameter 202mm
• Effective area SD 320cm²
• Moving mass MMS 225g
• Moving mass (without air load) MMD 221g

Suspensions

• Stiffness KMS 8.55N/mm
• Compliance CMS 117µm/N
• Equivalent volume to the compliance VAS 17L
• Mechanical resistance RMS 7.98N·s/m

Dimensions

• Nominal diameter 10″
• 254mm
• Baffle cutout diameter 232mm
• Mounting depth 17mm
• Volume occupied by the driver 2.21L