Celestion TF1525 250W 8OHM LF FERRITE
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TF1525 250W 8OHM LF FERRITE

Celestion - TF1525 250W 8ohm - LF Pressed Steel Chassis Loudspeaker - Ferrite



Features



- 15" bass and mid-range driver providing 98dB sensitivity and 250Wrms (AES standard) power handling

- 2.5" high temperature copper voice coil wound on polyimide for increased reliability

- Ideal for 2-way and 3-way systems

- Kevlar-loaded cone with sealed surround and damping for reduced distortion

- Rigid chassis design for maximum energy transfer

- Vented magnet assembly for enhanced cooling



General Specifications



Nominal diameter: 381mm/15in

Power rating(1): 250Wrms

Nominal impedance: 8ohm

Sensitivity(2): 98dB

Frequency range: 40-3000Hz

Voice coil diameter: 64mm/2.5in

Chassis type: Pressed steel

Magnet type: Ferrite

Magnet weight: 1.2kg/42oz

Coil material: Round copper

Former material: Polyimide

Cone material: Kevlar loaded paper

Surround material: Cloth-sealed

Suspension: Single

Xmax(3): 2.5mm/0.1in

Gap depth: 8mm/0.31in

Voice coil winding width: 13mm/0.51in



Small Signal Parameters



D: 0.33m/12.99in

Fs: 47Hz

Mms: 78.2g/2.76oz

Qms: 5.9

Qes: 0.66

Mmd: 64.1g/2.26oz

Qts: 0.59

Re: 5.21ohm

Vas: 152.5lt/5.38ft3

BI: 13.5Tm

Cms: 0.149mm/N

Rms: 3.94kg/s

Le (at 1kHz): 0.82mH



Mounting Information



Overall diameter: 385mm/15.16in

Overall depth: 153mm/6.02in

Cut-out diameter: 351mm/13.82in

Mounting slot dimensions: 9.2mm x 6.2mm/0.36in x 0.24in

Number of mounting slots: 8

Mounting PCD range: 369mm/14.56in

Unit weight: 5.2kg/11.5lb



Note



(1)Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.

(2)Measured on axis at 1W, 1m in 2pi anechoic environment.

(3)Xmax derived from: (voice coil winding width-gap depth)/2.

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