Celestion TF1230 350W 8OHM LF FERRITE
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Celestion - TF1230 350W 8ohm - LF Pressed Steel Chassis Loudspeaker - Ferrite


- 12" Bass and mid-range driver providing 94dB sensitivity and 350Wrms (AES standard) power handling

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

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

- Double roll surround for greater excursion control

- For use in 2-way or compact 3-way systems

General Specifications

Nominal diameter: 305mm/12in

Power rating(1): 350Wrms

Continuous power rating(2): 700W

EIA power rating(3): 500W

Nominal impedance: 8ohm

Sensitivity(4): 94dB

Frequency range: 45-3000Hz

Voice coil diameter: 75mm/3in

Chassis type: Pressed steel

Magnet type: Ferrite

Magnet weight: 1.4kg/48oz

Coil material: Round copper

Former material: Polyimide

Cone material: Kevlar loaded paper

Surround material: Cloth-sealed

Suspension: Single

Xmax(5): 5mm/0.19in

Gap depth: 8mm/0.24in

Voice coil winding width: 17.5mm/0.69in

Small Signal Parameters

D: 0.26m/0.24in

Fs: 56.9Hz

Mms: 58.59g/2.07oz

Qms: 2.411

Qes: 0.615

Mmd: 51.68g/1.82oz

Qts: 0.490

Re: 5.18ohm

Vas: 53.3lt/1.88ft3

BI: 13.29Tm

Cms: 0.133mm/N

Rms: 8.69kg/s

Le (at 1kHz): 1.20mH

Mounting Information

Overall diameter: 309mm/12.17in

Overall depth: 140mm/5.5in

Cut-out diameter: 283mm/11.14in

Mounting slot dimensions: Ø 7.9/0.31

Number of mounting slots: 4

Mounting PCD range: 297mm/11.69in

Unit weight: 4.3kg/9.46lb


(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)Continuous Power Handling is defined as 3dB greater than the AES rating.

(3)Tested as per the EIA-426-A standard

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

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

(6)Small signal parameters measured after unit subjected to pre-conditioning signal.

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