MTX Audio RT15-04

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.3dB
• Frequency response 20 - 200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 20Hz
• Mechanical quality factor QMS 6.07
• Electrical quality factor QES 0.52
• Total quality factor QTS 0.48

Large signal parameters

• Maximum linear excursion xmax 16mm
• Air volume displaced at xmax VD 1326cm³
• Power handling P 300W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz, estimated) LE 3.26mH

Magnet

• Force factor Bl 15.2N/A
• Motor constant Bl/√RE 8.01N/√W

Diaphragm

• Effective diameter 325mm
• Effective area SD 829cm²
• Moving mass MMS 263g
• Moving mass (without air load) MMD 246g

Suspensions

• Stiffness KMS 4.33N/mm
• Compliance CMS 231µm/N
• Equivalent volume to the compliance VAS 223L
• Mechanical resistance RMS 5.44N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Volume occupied by the driver (estimated) 4.3L