Coaxial/Twin Cone

Celestion
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FTX1530

FTX1530
FTX1530

  • 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
  • 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 Rating is defined as 3dB greater than the AES rating.
    3. Measured on axis at 1W, 1m in 2Π anechoic environment.
    4. Xmax derived from: (voice coil winding width-gap depth)/2.
    5. 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.
    6. Continuous Power Handling is defined as 3dB greater than the AES rating.

    General Specifications

    Size
    381mm/15in
    Power rating1
    400Wrms
    Continuous power rating2
    800W
    Nominal impedance
    Sensitivity3
    97dB
    Frequency range
    40-4,000Hz
    Voice coil diameter
    75mm/3in
    Chassis type
    Cast Aluminium
    Magnet type
    Ferrite
    Magnet weight
    2.3kg/81oz
    Coil material
    Edgewound copper clad aluminium
    Former material
    Glass fibre
    Cone material
    Kevlar loaded paper
    Surround material
    Cloth-sealed
    Suspension
    Single
    Xmax4
    4mm/0.16in
    Gap depth
    8mm/0.31in
    Voice coil winding width
    16mm/0.63in

    Small Signal Parameters

    D
    0.33m/12.99in
    Fs
    42.5Hz
    Mms
    84.29g/2.97oz
    Qms
    3.809
    Qes
    0.297
    Qts
    0.28
    Re
    5.36Ω
    Vas
    172.0716.08ft3
    BI
    20.16Tm
    Cms
    0.17mm/N
    Rms
    5.91kg/s
    Le (at 1kHz)
    0.82mH

    General Specifications: HF

    Power rating5
    75Wrms
    Continuous power rating6
    150W
    Nominal impedance
    Sensitivity
    106.5dB
    Frequency range
    800-18,000Hz
    Recommended min. crossover (12dB/oct)
    1,000Hz
    Voice coil diameter
    75mm/3in
    Magnet type
    Dual ferrite magnet motor
    Diaphragm and surround material
    Titanium/Polyimide

    Mounting Information

    Diameter
    387mm/15.24in
    Overall depth
    176mm/6.93in
    Cut-out diameter
    351mm/13.82in
    Mounting slot dimensions
    10 x 7mm/0.39 x 0.27in
    Number of mounting slots
    8
    Mounting PCD range
    365-375mm/14.37-14.76in
    Unit weight
    6.5kg/14.3lb

    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
    7.5kg/16.5lb