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NTR08-2009D

NTR08-2009D
NTR08-2009D

Features

  • 8" neodymium magnet driver providing 200Wrms (AES standard) power handling and 4.5dB sensitivity
  • 2" edgewound copper voice coil
  • Suitable for line array applications, utilizing a space-efficient octagonal chassis profile
  • Copper sleeved pole reduces inductive rise for improved HF performance
  • "M-roll" surround provides progressive excursion control, generating a smooth frequency response
  • Intelligent heat management in both chassis and magnet assembly design offers reduced thermal compression

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

General Specifications

Nominal diameter
203mm/8in
Power rating1
200Wrms
Nominal impedance
Sensitivity2
94.5dB
Frequency range
70-5000Hz
Voice coil diameter
50mm/2in
Chassis type
Cast aluminium
Magnet type
Neodymium
Coil material
Flat copper
Former material
Glass fibre
Cone material
Kevlar loaded paper with weather-resistant coating
Surround material
Cloth-sealed
Suspension
Single
Xmax3
4mm/0.16in
Gap depth
10mm/0.39in
Voice coil winding width
18mm/0.67in

Small Signal Parameters4

D
0.17m/6.69in
Fs
64.3Hz
Mms
32.21g/1.14oz
Mmd
30.27g/1.07oz
Qms
2.063
Qes
0.219
Qts
0.198
Re
5.83Ω
Vas
13.87lt/0.49ft3
BI
18.56Tm
Cms
0.19mm/N
Rms
6.3kg/s
Le (at 1kHz)
0.51mH

Mounting Information

Diameter
225mm/8.8in
Overall depth
100mm/4.16in
Cut-out diameter
187mm/7.4in
Mounting slot dimensions
ø6.5mm/0.26in
Number of mounting slots
8
Mounting slot PCD
210/8.3
Unit weight
2.8kg/6.16lb

Packed Dimensions & Weight

Multi pack (8) size W x D x H
450mmx380mmx260mm
/17.7in x 15.0in x 10.2in
Multi pack (8) weight
24kg/52.8lb