Celestion - TF1525e 300W 8ohm - LF Pressed Steel Chassis Loudspeaker - Ferrite

Features

- 15 driver provides extended low frequency range

- 2.5" edgewound voice coil enables 97dB efficiency and 300Wrms (AES standard) power handling

- Vented magnet assembly for enhanced cooling

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

- Suitable for use in 2-way and 3-way systems

General Specifications

Nominal diameter: 381mm/15in

Power rating(1): 300Wrms

Nominal impedance: 4ohm or 8ohm

Sensitivity(2): 97dB

Frequency range: 45-3500Hz

Voice coil diameter: 64mm/2.5in

Chassis type: Pressed steel

Magnet type: Ferrite

Magnet weight: 1.4kg/50oz

Coil material: Edgewound copper

Former material: Glass fibre

Cone material: Kevlar loaded paper

Surround material: Cloth-sealed

Suspension: Single

Xmax(3): 3.5mm/0.14in

Gap depth: 8mm/0.31in

Voice coil winding width: 14.5mm/0.57in

Small Signal Parameters

D: 0.33m/12.99in

Fs: 49.8Hz

Mms: 82.41g/2.91oz

Qms: 7.12

Qes: 0.53

Mmd: 68.26g/2.41oz

Qts: 0.50

Re: 6.48ohm

Vas: 128.19lt/4.53ft3

BI: 17.69Tm

Cms: 0.12mm/N

Rms: 3.62kg/s

Le (at 1kHz): 1.32mH

Mounting Information

Overall diameter: 385mm/15.16in

Overall depth: 163mm/6.42in

Cut-out diameter: 352mm/13.86in

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: 4.8kg/10.6lb

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.