PRV Audio 6MB250-NDY

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.6dB
• Frequency response 115 - 6500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 114Hz
• Mechanical quality factor QMS 11.65
• Electrical quality factor QES 0.76
• Total quality factor QTS 0.71

Large signal parameters

• Maximum linear excursion xmax 4.3mm
• Air volume displaced at xmax VD 65cm³
• Power handling P 125W
• Program power Pmax 250W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.4Ω
• Inductance (1kHz) LE 0.54mH
• VC Diameter 38.1mm
• Winding height HVC 11mm
• Winding material Copper
• Former material Kapton

Magnet

• Force factor Bl 9.45N/A
• Motor constant Bl/√RE 3.47N/√W
• Air gap height HAG 5.5mm
• Material Neodymium

Diaphragm

• Effective diameter 139mm
• Effective area SD 152cm²
• Moving mass MMS 12.9g
• Moving mass (without air load) MMD 11.5g

Suspensions

• Stiffness KMS 6.58N/mm
• Compliance CMS 152µm/N
• Equivalent volume to the compliance VAS 4.9L
• Mechanical resistance RMS 0.79N·s/m

Dimensions

• Nominal diameter 6″
• 167mm
• Overall diameter 167mm
• Baffle cutout diameter 143mm
• Overall depth 114mm
• Flange thickness 49mm
• Mounting depth 65mm
• Volume occupied by the driver (estimated) 0.33L
• Net weight 0.55kg
• Frame material Stamped Steel