Celestion TN1020

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.2dB
• Frequency response 65 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 95Hz
• Mechanical quality factor QMS 3.16
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.40

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 69cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.6mH
• VC Diameter 50mm
• Winding height HVC 12mm
• Winding material Round copper
• Former material Polyimide

Magnet

• Force factor Bl 14.9N/A
• Motor constant Bl/√RE 6.29N/√W
• Air gap height HAG 8mm
• Material Neodymium

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 29.9g
• Moving mass (without air load) MMD 25.2g
• Material Kevlar loaded paper

Suspensions

• Stiffness KMS 11.1N/mm
• Compliance CMS 90µm/N
• Equivalent volume to the compliance VAS 16L
• Mechanical resistance RMS 5.63N·s/m
• Surround material Cloth-sealed

Dimensions

• Nominal diameter 10″
• 254mm
• Overall diameter 256mm
• Baffle cutout diameter 229mm
• Overall depth 110mm
• Volume occupied by the driver (estimated) 0.81L
• Net weight 1.5kg
• Frame material Pressed steel