Speaker - Celestion, 10", NTR10-2520D, 250W, 8Ω

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Speaker - Celestion, 10", NTR10-2520D, 250W, 8Ω

Note: special order items require additional lead time. See our page on special order items.

Special Order Item

Celestion, NTR10-2520D, 10", 8Ω.


  • 10" neodymium mid/bass unit offers 250Wrms (AES standard) power handling and 96dB sensitivity
  • 2.5" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
  • “M-roll” surround provides progressive excursion control, yielding a smooth response even at extremes of frequency range
  • Extremely lightweight design combined with a highly efficient magnet assembly results in exceptional power-to-weight ratio
  • Intelligent heat management in both chassis and magnet assembly design further minimises distortion
RoHS Compliant
Item ID:
CelestionCelestion Bass
Product Measurements
Chassis TypeCast aluminium
Coil MaterialCopper-clad aluminium
Cone MaterialKevlar-loaded paper
Cut-out Diameter234 mm
D210 mm
Diaphragm/Coil Mass (Mmd)33.82 g
Electrical Q Factor (Qes)0.362
Equivalent Acoustic Volume (VAS)36.8 liters
Force Factor (BxL)14.94 Wb/m
Former MaterialGlass fibre
Frequency Range55 Hz - 3,500 Hz
Gap Depth8 mm
Magnet TypeNeodymium
Maximum Linear Displacement (XMAX)4 mm
Mechanical Compliance (CMS)0.217 mm/N
Mechanical Moving Mass (MMS)37.46 g
Mechanical Q Factor (QMS)2.568
Mechanical Resistance of Driver (Rms)5.12 kg/s
Mounting Hole Bolt Circle Diameter244 mm - 247 mm
Mounting Hole Length7.5 mm
Mounting Hole Width6.5 mm
Mounting Slots4
Nominal Diameter10 in.
Nominal Impedance8 Ω
Overall Depth113 mm
Overall Diameter260 mm
Power Rating250 Wrms
Resonance Frequency (ƒS)65.0 Hz
Sensitivity96 dB
Surround MaterialCloth-sealed
Total Q Factor (QTS)0.317
Voice Coil DC Resistance (Re)5.88Ω
Voice Coil Diameter2.5 in.
Voice Coil Inductance @ 1 kHZ (LE)0.56 mH
Voice Coil Winding Width16 mm
Packaging Information
Packaging Dimensions12 in. × 11 in. × 6 in.
Weight (Packaging)13 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet168.33 KB

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