Radian 5312

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.2dB
• Frequency response 54 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 54Hz
• Mechanical quality factor QMS 2.61
• Electrical quality factor QES 0.42
• Total quality factor QTS 0.37

Large signal parameters

• Maximum linear excursion xmax 2.9mm
• Air volume displaced at xmax VD 236cm³
• Power handling P 615W
• Program power Pmax 1230W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz, estimated) LE 3.73mH
• VC Diameter 101.6mm
• Winding material Aluminum

Magnet

• Force factor Bl 26.8N/A
• Motor constant Bl/√RE 10.9N/√W
• Material Ferrite

Diaphragm

• Effective diameter 323mm
• Effective area SD 821cm²
• Moving mass MMS 150g
• Moving mass (without air load) MMD 137g
• Material Reinforced Paper

Suspensions

• Stiffness KMS 17.2N/mm
• Compliance CMS 58µm/N
• Equivalent volume to the compliance VAS 55.4L
• Mechanical resistance RMS 19.5N·s/m

Dimensions

• Nominal diameter 12″
• 308mm
• Overall diameter 308mm
• Baffle cutout diameter 279mm
• Overall depth 202mm
• Volume occupied by the driver (estimated) 5.6L
• Net weight 13.64kg
• Frame material Cast Aluminum