LF Cast Chassis / Ferrite

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CF1830E

CF1830E
CF1830E

Features

  • 18" ferrite magnet, cast aluminium chassis LF driver delivering 700Wrms (AES Standard) power handling and 94dB sensitivity
  • 3" high temperature, multi- layer voice coil for greater motor force
  • FEA optimized magnet assembly delivers highly symmetrical cone - movement, leading to exceptionally low harmonic distortion
  • Balanced Airflow Venting (BAV) on the front-plate increases airflow to provide enhanced cooling
  • Dual Magnet Motor (DMM) incorporates a secondary magnet used to increase overal motor force (Bl) without the need for any additional increase in magnet size
  • "Multi-roll" surround provides exceptional linearity at extremes of cone excursion

8Ω Frequency Response

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. Measured on axis at 1W, 1m in 2π anechoic environment.
  3. Xmax derived from: (voice coil winding width-gap depth)/2.

General Specifications

Nominal diameter
457mm/18in
Power rating1
700Wrms
Nominal impedance
8Ω
Sensitivity2
94dB
Frequency range
30-2500Hz
Voice coil diameter
75mm/3in
Chassis type
Cast Aluminium
Magnet type
Ferrite
Coil material
Round Copper
Former material
Glass Fibre
Cone material
Glass-Reinforced Paper
Surround material
Cloth-sealed
Suspension
Single
Xmax3
5mm/0.79in
Gap depth
8mm/0.31in
Voice coil winding width
18mm/0.71in

Small Signal Parameters

D
0.38m/14.96in
Fs
40.5Hz
Mms
167.47g/5.91oz
Mmd
145.86g/5.15oz
Qms
4.367
Qes
0.371
Qts
0.343
Re
5.27Ω
Vas
167.92lt/5.93ft3
BI
24.6Tm
Cms
0.092mm/N
Rms
9.33kg/s
Le (at 1kHz)
3.24mH

Mounting Information

Diameter
460mm/18.11in
Overall depth
211.3mm/8.31in
Cut-out diameter
414mm/16.29in
Mounting slot dimensions
9.25x7mm/0.36x0.28in
Number of mounting slots
8
Mounting slot PCD
432-441mm/17.0-17.36in