LF Cast Chassis / Ferrite

Celestion
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Preliminary Data

OEM

FTR12-3070F

FTR12-3070F
FTR12-3070F

Features


  • 12" ferrite woofer provides 900W continuous power handling and 98dB sensitivity
  • Celestion special-design cone for enhanced bass response
  • 3" high temperature voice coil wound on polyimide for increased reliability
  • Finite element analysis optimised magnet assembly prevents sensitivity loss due to thermal compression
  • “M-Roll” surround provides progressive excursion control, generating a smooth frequency response
  • Smart cast aluminium chassis design minimises reflections back onto the
    cone, significantly reducing distortion

Frequency Response and Impedance Curves

Product Graph

  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 2π 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.

General Specifications

Nominal diameter
305mm/12in
Power rating1
450Wrms
Continuous power rating2
900W
EIA power rating3
600W
Nominal impedance
Sensitivity4
98dB
Frequency range
40-4000Hz
Voice coil diameter
75mm/3in
Chassis type
Cast Aluminium
Magnet type
Ferrite
Magnet weight
2.6kg/73oz
Coil material
Edgewound copper clad aluminium
Former material
Polyimide
Cone material
Glass reinforced paper
Surround material
Cloth-sealed
Suspension
Single
Xmax5
6mm/0.24in
Gap depth
8mm/0.34in
Voice coil winding width
20mm/0.79in

Small Signal Parameters

D
0.26m/10.23in
Fs
52.5Hz
Mms
62.18g/2.19oz
Qms
5.01
Qes
0.32mH
Qts
0.3
Re
5.21Ω
Vas
58.87lt/2.1ft3
BI
18.33Tm
Cms
0.148mm/N
Rms
4.1kg/s
Le (at 1kHz)
1.1mH

Mounting Information

Overall diameter
313mm/12.3in
Overall depth
150mm/5.9in
Cut-out diameter
285mm/11.2in
Mounting slot dimensions
7mm x 10mm/0.27in x 0.38in
Number of mounting slots
8
Mounting PCD range
294-304mm/11.6 -12in
Unit weight
6.7kg/14.7lb

Packed Dimensions & Weight

Multi pack size W x D x H
H1210mm x 1050mm x 980mm
/47.6in x 41.3in x 38.6in
Multi pack weight
430kg/946lb