FTX1530
15-inch cast aluminium chassis, ferrite magnet coaxial driver
- Ferrite magnet assembly acts as common motor for both LF and HF
- Titanium HF diaphragm
- Demodulation ring
- 90° nominal HF coverage
- HF repair kit available
Specifications
800W
Continuous power rating
97dB
Sensitivity
3in
Voice coil diameter LF
3in
Voice coil diameter HF
Nominal diameter
381mm / 15in
Power rating
400W
Continuous power rating
800W
Rated impedance
8Ω
Sensitivity
97dB
Frequency range
40-4000Hz
Chassis type
Cast aluminium
Magnet type
Ferrite
Magnet weight
2.3kg / 81oz
Voice coil diameter
75mm / 3in
Voice coil material
Edgewound copper clad aluminium
Former material
Glass fibre
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Gap height (Hg)
8mm / 0.31in
VC winding height (Hvc)
16mm / 0.63in
Parameters
Sd
855.30cm2 / 132.57in2
Fs
42.50Hz
Mms
84.29g / 2.97oz
Qms
3.809
Qes
0.297
Qts
0.276
Re
5.36Ω
Vas
172.07I / 6.08ft3
BI
20.16Tm
Cms
0.17mm/N
Rms
5.91kg/s
Le (at 1kHz)
0.82mH
Xmax
6mm / 0.24in
Mounting Information
Overall diameter
387mm / 15.24in
Overall depth
176mm / 6.93in
Cut-out diameter
351mm / 13.82in
Mounting hole dimensions
10x7mm / 0.39x0.27in
Number of mounting holes
8
Mounting hole PCD
365-375mm / 14.37-14.76in
Unit weight
9.1kg / 20lb
Packed Dimensions & Weight
Single pack size W x D x H
428mm x 428mm x 228mm / 16.8in x 16.8in x 8.9in
Single pack weight
11kg / 24.2lb
Multi pack qty
36
Multi pack size W x D x H
1050mm x 1200mm x 950mm / 41.3in x 47.2in x 37.4in
Multi pack weight
360kg / 794lb
Additional HF Specifications
Power rating
75W
Continuous power rating
150W
Rated impedance
8Ω
Sensitivity
106.5dB
Frequency range
800-18,000Hz
Recommended min. crossover 12dB/oct
1000Hz
Voice coil diameter
75mm / 3in
Magnet type
Dual-ferrite magnet motor
Diaphragm material
Titanium
Surround material
Polyimide
Frequency Response and Impedance Curves
Black: LF response curve | Red: HF response curve
Power rating: 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.
HF power rating: Tested for two hours on plane wave tube using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance.
Continuous power rating: Defined as 3dB greater than the AES rating.
Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.
Xmax: 0.5*(Hvc-Hg) + 0.25*Hg
Suggested crossover design available online at celestion.com/speakerworld
Watch
FTX Series Features
