MTX Audio RFL12

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.7dB
• Frequency response 26 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 7.61
• Electrical quality factor QES 0.37
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 15mm
• Air volume displaced at xmax VD 747cm³
• Power handling P 3000W
• Program power Pmax 9000W

Voice Coil

• Nominal impedance Z 2Ω
• DC resistance RE 2.0Ω
• Inductance (1kHz, estimated) LE 2.76mH

Magnet

• Force factor Bl 25N/A
• Motor constant Bl/√RE 17.7N/√W

Diaphragm

• Effective diameter 252mm
• Effective area SD 498cm²
• Moving mass MMS 496g
• Moving mass (without air load) MMD 488g

Suspensions

• Stiffness KMS 23.8N/mm
• Compliance CMS 42µm/N
• Equivalent volume to the compliance VAS 14.6L
• Mechanical resistance RMS 14.3N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Volume occupied by the driver (estimated) 2.3L