Speaker - Celestion, 15", T.F. Series 1525, 250W, 8Ω

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Speaker - Celestion, 15", T.F. Series 1525, 250W, 8Ω

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This bass and mid range driver is suitable for use in 2-way systems, providing 98 dB of sensitivity.

Item ID:
Celestion Part Number:
CelestionCelestion T.F. Series
Magnet Type:
RoHS Compliant
Product Measurements by Type
Chassis TypePressed steel
Coil MaterialRound copper
Cone MaterialKevlar-loaded paper
Cut-out Diameter351 mm
D330 mm
Diameter15 in.
Diaphragm/Coil Mass (Mmd)64.1 g
Electrical Q Factor (Qes)0.66
Equivalent Acoustic Volume (VAS)152.5 liters
Force Factor (BxL)13.5 Wb/m
Former MaterialPolyimide
Frequency Range40 Hz - 3,000 Hz
Gap Depth8 mm
Magnet TypeFerrite
Magnet Weight42 oz.
Maximum Linear Displacement (XMAX)2.5 mm
Mechanical Compliance (CMS)0.149 mm/N
Mechanical Moving Mass (MMS)78.2 g
Mechanical Q Factor (QMS)5.9
Mechanical Resistance of Driver (Rms)3.94 kg/s
Mounting Hole Bolt Circle Diameter369 mm
Mounting Hole Length9.2 mm
Mounting Hole Width6.2 mm
Mounting Slots8
Nominal Diameter15 in.
Nominal Impedance8 Ω
Overall Depth153 mm
Overall Diameter385 mm
Power Rating250 Wrms
Resonance Frequency (ƒS)47 Hz
Sensitivity98 dB
Surround MaterialCloth-sealed
Total Q Factor (QTS)0.59
Voice Coil DC Resistance (Re)5.21Ω
Voice Coil Diameter2.5 in.
Voice Coil Inductance @ 1 kHZ (LE)0.82 mH
Voice Coil Winding Width13 mm
Packaging Information
Packaging Dimensions16 in. × 15.8 in. × 6.9 in.
Weight (Packaging)11.45 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet139.38 KB

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