Celestion NTR06-17X

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.1dB
• Frequency response 70 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 60.4Hz
• Mechanical quality factor QMS 7.25
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 69cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.28mH
• VC Diameter 44mm
• Winding height HVC 12mm
• Winding material Copper clad aluminium
• Former material Polyimide

Magnet

• Force factor Bl 10.4N/A
• Motor constant Bl/√RE 4.47N/√W
• Air gap height HAG 6mm
• Material Neodymium

Diaphragm

• Effective diameter 140mm
• Effective area SD 154cm²
• Moving mass MMS 17.7g
• Moving mass (without air load) MMD 16.2g
• Material Kevlar loaded paper (weather-resistant)

Suspensions

• Stiffness KMS 2.56N/mm
• Compliance CMS 390µm/N
• Equivalent volume to the compliance VAS 13.2L
• Mechanical resistance RMS 0.93N·s/m
• Surround material Elastomer

Dimensions

• Nominal diameter 6.5″
• 165mm
• Overall diameter 189mm
• Baffle cutout diameter 145mm
• Overall depth 73mm
• Volume occupied by the driver (estimated) 0.44L
• Net weight 1.2kg
• Frame material Cast aluminium