LF Cast Chassis / Neo

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NTR21-5010JD

NTR21-5010JD
NTR21-5010JD

Features

  • Rigid, lightweight carbon fibre loaded cone
  • Vented magnet assembly for more efficient cooling
  • Compact, high flux, Dual Magnet Motor design
  • Optimised double suspension

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
530mm/21in
Power rating1
1600Wrms
Continuous power rating2
3200W
Nominal impedance
Sensitivity3
98dB
Frequency range
30-3000Hz
Voice coil diameter
125mm/5in
Chassis type
Cast aluminium
Magnet type
Neodymium
Coil material
Round copper
Former material
Glass fibre
Cone material
Carbon fibre loaded paper
Surround material
Cloth-sealed
Suspension
Double
Xmax4
9mm/0.35in
Gap depth
12mm/0.47in
Voice coil winding width
30mm/1.18in

Small Signal Parameters4

D
0.46m/18.11in
Fs
32.2Hz
Mms
344.1g/12.14oz
Qms
5.819
Qes
0.339
Mmd
280.52g/9.9oz
Qts
0.32
Re
5.57Ω
Vas
276.7lt/9.97ft3
BI
33.85Tm
Cms
0.07mm/N
Rms
11.98Kg/s
Le (at 1kHz)
2.25mH

Mounting Information

Overall diameter
550mm/21.65in
Overall depth
254mm/10in
Cut-out diameter
492mm/19.37in
Mounting slot dimensions
12.5mm x 8.5mm/0.49in x 0.33in
Number of mounting slots
8
Mounting slot PCD range
520-528mm/20.5-20.8in
Unit weight
12.8kg/28.2lb

Packed Dimensions & Weight

Single pack size W x D x H
575mm x 575mm x 280mm
/22.6in x 22.6in x11.0in
Single pack weight
13.2kg/29lb