NTR10-2520D (Legacy)
Vented cast aluminium heatsink
Compact high flux Dual Magnet Motor design
Specifications
254mm/10in
Nominal Diameter
250W
Nominal Power Rating
8Ω
Rated Impedance
96dB
Sensitivity
Nominal Diameter
254mm/10in
Nominal Power Rating
250W
Continuous Power Rating
500W
Sensitivity
96dB
Rated Impedance
8Ω
Frequency Range
55Hz-3500Hz
Voice coil diameter (mm)
64mm
Voice coil diameter (in)
2.5in
Chassis Type
Cast aluminium
Magnet Type
Neodymium
Voice coil material
Copper clad aluminium
Former Material
Glass fibre
Cone material
Kevlar loaded paper
Surround Material
Cloth sealed
Suspension
Single
Xmax
4mm/0.16in
Gap Depth
8mm/0.32in
Voice coil winding width
16mm/0.63in
Small Signal Parameters
Sd
346.36cm2/53.69in2
Fs
57.20Hz
Mms
37.93g/1.34oz
Qms
2.824
Qes
0.322
Qts
0.289
Re
5.92Ω
Vas
34.69I/1.23ft3
BI
15.83Tm
Cms
0.20mm/N
Rms
4.82kg/s
Le (at 1kHz)
0.49mH
Mounting Information
Mounting slot dimensions
7.5mm x 6.5mm/0.3in x 0.26in Ø
Mounting slot PCD
244mm-247mm/9.6in-9.7in
Number of mounting slots
4
Overall Depth
113mm/4.45in
Overall Diameter (mm)
260mm
Overall Diameter (in)
10.24in
Cut-out diameter
232mm/9.13in
Unit Weight
2.2kg/4.89lb
Packed Dimensions & Weight
Single pack size W x D x H
305mm x 305mm x 150mm/12.0in x 12.0in x 5.9in
Single pack weight
2.5kg/5.5lb
Multi Pack Qty
96
Multi pack size W x D x H
1080mm x 880mm x 840mm/42.5in x 34.6in x 33.1in
Multi pack weight
235kg/518lb
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.