Celestion – TF1830 500W 4ohm – LF Pressed Steel Chassis Loudspeaker – Ferrite
Altoparlante da 18′ con chassis in acciaio stampato, magnete in ferrite, bobina da 3′, potenza 500Watt, impedenza 4ohm
Caratteristiche
– Balanced Airflow Venting provides enhanced cooling
– Multi-layer voice coil
– Compact, high flux, Dual Magnet Motor design
Specifiche Generali
Nominal diameter: 457mm/18in
Power rating(1): 500Wrms
Continuous power rating(2): 1000W
EIA power rating(3): 650W
Nominal impedance: 4ohm
Sensitivity(4): 96dB
Frequency range: 35-1,000Hz
Voice coil diameter: 75mm/3in
Chassis type: Pressed Steel
Magnet type: Ferrite
Magnet weight: 1.8kg/65oz
Coil material: Round copper
Former material: Glass fibre
Cone material: Glass loaded paper with weather resistant impregnation
Surround material: Cloth sealed
Suspension: Single
Xmax(5): 4.5mm/0.18in
Gap depth: 8mm/0.31in
Voice coil winding width: 17mm/0.67in
Parametri di Thiele-Small
D: 379.5mm/14.9in
Fs: 35.7Hz
Mms: 179.11g/6.32oz
Qms: 4.213
Qes: 0.434
Qts: 0.393
Re: 2.58ohm
Vas: 202.4l/7.15ft3
BI: 15.46Tm
Cms: 0.11mm/N
Rms: 9.63kg/s
Le (at 1kHz): 1.28mH
Informazioni di Montaggio
Overall diameter: 460mm/18.1in
Overall depth: 209mm/8.22in
Cut-out diameter: 421mm/16.57in
Mounting slot dimensions: Ø8.3mm/0.32in
Number of mounting slots: 8
Mounting PCD range: 443.4mm/17.46in
Unit weight: 7.5kg/16.5lb
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 Rating 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.
