MTX Audio TX612

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.6dB
• Frequency response 20 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 27Hz
• Mechanical quality factor QMS 6.17
• Electrical quality factor QES 0.42
• Total quality factor QTS 0.39

Large signal parameters

• Maximum linear excursion xmax 14mm
• Air volume displaced at xmax VD 701cm³
• Power handling P 800W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 2Ω
• DC resistance RE 2.0Ω
• Inductance (1kHz, estimated) LE 1.88mH

Magnet

• Force factor Bl 16N/A
• Motor constant Bl/√RE 11.3N/√W

Diaphragm

• Effective diameter 252mm
• Effective area SD 501cm²
• Moving mass MMS 279g
• Moving mass (without air load) MMD 271g

Suspensions

• Stiffness KMS 8.33N/mm
• Compliance CMS 120µm/N
• Equivalent volume to the compliance VAS 42.7L
• Mechanical resistance RMS 7.67N·s/m

Dimensions

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