Celestion TF1018

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.3dB
• Frequency response 70 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 70.1Hz
• Mechanical quality factor QMS 2.43
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.41

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 69cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 44mm
• Winding height HVC 10mm
• Winding material Round copper
• Former material Polyimide

Magnet

• Force factor Bl 11.6N/A
• Motor constant Bl/√RE 4.81N/√W
• Air gap height HAG 6mm
• Weight 0.88kg
• Material Ferrite

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 25.9g
• Moving mass (without air load) MMD 21.3g
• Material Kevlar loaded paper

Suspensions

• Stiffness KMS 5N/mm
• Compliance CMS 200µm/N
• Equivalent volume to the compliance VAS 33.8L
• Mechanical resistance RMS 4.7N·s/m
• Surround material Cloth-sealed

Dimensions

• Nominal diameter 10″
• 254mm
• Overall diameter 256mm
• Baffle cutout diameter 229mm
• Overall depth 102mm
• Volume occupied by the driver (estimated) 1L
• Net weight 2.4kg
• Frame material Pressed steel