MTX Audio FPR10-04

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.3dB
• Frequency response 28 - 150Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 5.47
• Electrical quality factor QES 0.89
• Total quality factor QTS 0.77

Large signal parameters

• Maximum linear excursion xmax 13mm
• Air volume displaced at xmax VD 490cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz, estimated) LE 2.58mH

Magnet

• Force factor Bl 13.1N/A
• Motor constant Bl/√RE 7.19N/√W

Diaphragm

• Effective diameter 219mm
• Effective area SD 377cm²
• Moving mass MMS 210g
• Moving mass (without air load) MMD 205g

Suspensions

• Stiffness KMS 10.1N/mm
• Compliance CMS 99µm/N
• Equivalent volume to the compliance VAS 20L
• Mechanical resistance RMS 8.44N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Volume occupied by the driver (estimated) 1.5L