LF Cast Chassis / Neo

Celestion
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NTR08-2009D

NTR08-2009D
NTR08-2009D

  • Coated Kevlar-loaded cone for enhanced weather resistance
  • Vented magnet assembly for more efficient cooling

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. Small signal parameters measured after unit subjected to pre-conditioning signal.

General Specifications

Nominal diameter
203mm/8in
Power rating1
200Wrms
Continuous power rating2
400W
Nominal impedance
Sensitivity2
94.5dB
Frequency range
70-5,000Hz
Voice coil diameter
50mm/2in
Chassis type
Cast aluminium
Magnet type
Neodymium
Coil material
Edgewound copper
Former material
Glass fibre
Cone material
Kevlar loaded paper with weather-resistant coating
Surround material
Cloth-sealed
Suspension
Single
Xmax4
4mm/016in
Gap depth
10mm/0.39in
Voice coil winding width
18mm/0.67in

Small Signal Parameters4

D
0.17m/6.69in
Fs
71.4Hz
Mms
31.06g/1.1oz
Qms
2.035
Qes
0.236
Mmd
30.27g/1.07oz
Qts
0.211
Re
5.5Ω
Vas
11.65lt/0.41ft3
BI
18.03Tm
Cms
0.16mm/N
Rms
6.85kg/s
Le (at 1kHz)
0.48mH

Mounting Information

Overall diameter
225mm/8.8in(octagonal profile)
Overall depth
100mm/4.16in
Cut-out diameter
187mm/7.4in
Mounting slot dimensions
ࡶ.5mm/0.26in
Number of mounting slots
8
Mounting slot PCD range
210mm/8.3in
Unit weight
2.8kg/6.16lb

Packed Dimensions & Weight

Multi pack size W x D x H
450mmx380mmx260mm
/17.7in x 15.0in x 10.2in
Multi pack weight
24kg/52.8lb