MTX Audio T612S-22

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.4dB
• Frequency response 33 - 200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33.6Hz
• Mechanical quality factor QMS 8.18
• Electrical quality factor QES 0.65
• Total quality factor QTS 0.60

Large signal parameters

• Maximum linear excursion xmax 15mm
• Air volume displaced at xmax VD 1053cm³
• Power handling P 600W
• Program power Pmax 1800W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.3Ω
• Inductance (1kHz, in series, estimated) LE 2.99mH

Magnet

• Force factor (in series) Bl 16.8N/A
• Motor constant Bl/√RE 9.23N/√W

Diaphragm

• Effective diameter 299mm
• Effective area SD 702cm²
• Moving mass MMS 264g
• Moving mass (without air load) MMD 253g

Suspensions

• Stiffness KMS 11.8N/mm
• Compliance CMS 85µm/N
• Equivalent volume to the compliance VAS 58.9L
• Mechanical resistance RMS 6.8N·s/m

Dimensions

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