NTR15-3018E (Legacy)
Legacy Product
Features
Coated glass-loaded cone for enhanced weather resistance
Vented magnet assembly for more efficient cooling
Compact high flux Dual Magnet Motor design
Specifications
381mm/15in
Nominal Diameter
450Wrms
Nominal Power Rating
8Ω
Rated Impedance
98dB
Sensitivity
Nominal Diameter
381mm/15in
Nominal Power Rating
450Wrms
Continuous Power Rating
900W
Sensitivity
98dB
Rated Impedance
8Ω
Frequency Range
30Hz-3000Hz
Voice coil diameter (mm)
75mm
Voice coil diameter (in)
3in
Chassis Type
Cast aluminium
Magnet Type
Neodymium
Voice coil material
Edgewound copper
Former Material
Glass fibre
Cone material
Glass loaded paper (weather-resistant)
Surround Material
Cloth-sealed
Suspension
Single
Xmax
5mm/0.2in
Gap Depth
10mm/0.39in
Voice coil winding width
20mm/0.79in
Small Signal Parameters
Sd
855.30cm2/132.57in2
Fs
34.90Hz
Mms
104.12g/3.67oz
Qms
4.863
Qes
0.301
Re
5.85Ω
Vas
207.27I/7.32ft3
BI
21.07Tm
Cms
0.20mm/N
Rms
4.69kg/s
Le (at 1kHz)
1.18mH
Mounting Information
Mounting slot dimensions
10mm x 7mm/0.4in x 0.27in Ø
Mounting slot PCD
367mm-373mm/14.4in-14.7in
Number of mounting slots
8
Overall Depth
162mm/6.38in
Overall Diameter (mm)
386mm
Overall Diameter (in)
15.2in
Cut-out diameter
351mm/13.8in
Unit Weight
4kg/8.8lb
Packed Dimensions & Weight
Single pack size W x D x H
435mm x 435mm x 200mm/17.1in x 17.1in x 7.9in
Single pack weight
5.0kg/11lb
Multi Pack Qty
36
Multi pack size W x D x H
1200mm x 1000mm x 980mm/47.2in x 39.4in x 38.6in
Multi pack weight
166kg/365lb
Frequency Response and Impedance Curves
Power Rating: 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.
Continuous Power Rating is defined as 3dB greater than the AES rating.
Sensitivity measured on axis at 1W, 1m in 2Π anechoic environment.
Xmax is derived from: (voice coil winding width-gap depth)/2.
Small Signal Parameters are measured after unit subjected to pre-conditioning signal.