Rockford Fosgate T1D210

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 34.5Hz
• Mechanical quality factor QMS 6.00
• Electrical quality factor QES 0.59
• Total quality factor QTS 0.54

Large signal parameters

• Maximum linear excursion xmax 16mm
• Air volume displaced at xmax VD 552cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.3Ω
• Inductance (1kHz, in series) LE 1.8mH
• VC Diameter 76mm

Magnet

• Force factor (in series) Bl 16.7N/A
• Motor constant Bl/√RE 9.26N/√W
• Weight 2.83kg

Diaphragm

• Effective diameter 210mm
• Effective area SD 345cm²
• Moving mass MMS 234g
• Moving mass (without air load) MMD 229g

Suspensions

• Stiffness KMS 11N/mm
• Compliance CMS 91µm/N
• Equivalent volume to the compliance VAS 15.4L
• Mechanical resistance RMS 8.45N·s/m

Dimensions

• Nominal diameter 10″
• 254mm
• Baffle cutout diameter 230mm
• Mounting depth 162mm
• Volume occupied by the driver 2.21L