Celestion – FTR18-4080HDX 1000W 8ohm – LF Die Cast Chassis Loudspeaker – Ferrite
Altoparlante da 18′ con chassis in fusione d’alluminio, magnete in ferrite, bobina da 4′, potenza 1000Watt, impedenza 8ohm
Caratteristiche
– 18′ ferrite subwoofer provides 1000Wrms (AES standard) power handling and a frequency response of 30Hz-2500Hz
– 4′ high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
– Double suspension and a ‘multi-roll’ surround provide exceptional linearity at extremes of cone excursion
– Intelligent heat management in both chassis and magnet assembly design further minimizes distortion
– Less than 10kg – very low weight for this product class
Specifiche Generali
Nominal diameter: 457mm/18in
Power rating(1): 1000Wrms
Continuous power rating(2): 2000W
Nominal impedance: 8ohm
Sensitivity(3): 95dB
Frequency range: 30-2500Hz
Voice coil diameter: 100mm/4in
Chassis type: Cast aluminium
Magnet type: Ferrite
Magnet weight: 3.1kg/110oz
Coil material: Round copper
Former material: Glass Fibre
Cone material: Glass loaded paper with weather-resistant impregnation
Surround material: Cloth-sealed
Suspension: Double
Xmax(4): 8mm/0.33in
Gap depth: 9.5mm/0.37in
Voice coil winding width: 25mm/0.99in
Parametri di Thiele-Small
D: 0.38m/14.96in
Fs: 35.5Hz
Mms: 199.02g/7.025oz
Qms: 5.74
Qes: 0.46
Mmd: 177.41g/6.26oz
Qts: 0.42
Re: 5.01ohm
Vas: 184.24lt/6.5ft3
BI: 22.11Tm
Cms: 0.10mm/N
Rms: 7.72kg/s
Le (at 1kHz): 1.81mH
Informazioni di Montaggio
Overall diameter: 452mm/17.8in
Overall depth: 205mm/8.07in
Cut-out diameter: 416mm/16.38in
Mounting slot dimensions: 10mm x 7mm/0.4in x 0.27in
Number of mounting slots: 8
Mounting PCD range: 429-440mm/16.89-17.32in
Unit weight: 9.8kg/21.6lb
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)Continuous Power Handling is defined as 3dB greater than the AES rating.
(3)Measured on axis at 1W, 1m in 2pi anechoic environment.
(4)Xmax derived from: (voice coil winding width-gap depth)/2.
(5)Small signal parameters measured after unit subjected to pre-conditioning signal.
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