P.Audio 19NT-125XB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.6dB
• Frequency response 33 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33Hz
• Mechanical quality factor QMS 9.70
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 9.5mm
• Air volume displaced at xmax VD 1477cm³
• Power handling P 1800W
• Program power Pmax 3600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 1.26mH
• VC Diameter 126mm
• Winding height HVC 33mm
• Winding material Round Copper Wire
• Former material Glass Fiber

Magnet

• Flux density B 1.2T
• Force factor Bl 29.9N/A
• Motor constant Bl/√RE 12.2N/√W
• Air gap height HAG 14mm
• Material Neodymium

Diaphragm

• Effective diameter 445mm
• Effective area SD 1555cm²
• Moving mass MMS 317g
• Moving mass (without air load) MMD 275g
• Material Paper

Suspensions

• Stiffness KMS 14.5N/mm
• Compliance CMS 69µm/N
• Equivalent volume to the compliance VAS 218L
• Mechanical resistance RMS 6.78N·s/m
• Surround material Cloth
• Spider material Double Silicone

Dimensions

• Nominal diameter 19″
• 480mm
• Overall diameter 512mm
• Baffle cutout diameter 473mm
• Overall depth 255mm
• Flange thickness 24mm
• Mounting depth 231mm
• Volume occupied by the driver (estimated) 8.5L
• Net weight 12.5kg
• Frame material Aluminium