Speaker - Celestion, 15", FTR15-3070E, 400W, 8Ω

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Speaker - Celestion, 15", FTR15-3070E, 400W, 8Ω

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

Special Order Item

Ferrite magnet cast aluminium chassis driver

  • 15" ferrite woofer provides 400Wrms power handling (AES Standard) and 97dB sensitivity
  • 3" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
  • Flexirol TM surround for greater excursion control
  • Low frequency response, down to 40Hz
  • Smart chassis design minimises acoustic distortion
  • Specially treated weather-resistant cone
Item ID:
CelestionCelestion Pro Audio
Magnet Type:
RoHS Compliant
Product Measurements by Type
Chassis TypeCast aluminium
Coil MaterialRound copper
Cone MaterialGlass-loaded paper with weather-resistant impregnation
Cut-out Diameter351 mm
D330 mm
Diaphragm/Coil Mass (Mmd)74.54 g
Electrical Q Factor (Qes)0.46
Equivalent Acoustic Volume (VAS)143.85 liters
Force Factor (BxL)17.24 Wb/m
Former MaterialGlass fibre
Frequency Range40 Hz - 4,000 Hz
Gap Depth9 mm
Magnet TypeFerrite
Magnet Weight81 oz.
Maximum Linear Displacement (XMAX)5.5 mm
Mechanical Compliance (CMS)0.14 mm/N
Mechanical Moving Mass (MMS)88.69 g
Mechanical Q Factor (QMS)3.07
Mechanical Resistance of Driver (Rms)8.22 kg/s
Mounting Hole Bolt Circle Diameter365 mm - 375 mm
Mounting Hole Length10 mm
Mounting Hole Width7 mm
Mounting Slots8
Nominal Diameter15 in.
Nominal Impedance8 Ω
Overall Depth161 mm
Overall Diameter387 mm
Power Rating400 Wrms
Resonance Frequency (ƒS)45.3 Hz
Sensitivity97 dB
Surround MaterialCloth-sealed
Total Q Factor (QTS)0.40
Voice Coil DC Resistance (Re)5.36Ω
Voice Coil Diameter3 in.
Voice Coil Inductance @ 1 kHZ (LE)1.3 mH
Voice Coil Winding Width20 mm
Packaging Information
Packaging Dimensions17 in. × 17 in. × 8 in.
Weight (Packaging)25 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet161.26 KB

Questions and Answers

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Asked by Anonymous on May 17th, 2018.
Matt H
May 18th, 2018
Specs can be found in the spec sheet.

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