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NTi15-4015B
• 15" neodymium woofer offers 400Wrms continuous power
handling and 98dB sensitivity
• Innovative approach to heat management utilises front mounted
(inverted) neodymium magnet assembly
• High-flux motor assembly enables greater sensitivity and higher
damping for dynamic bass/low-mid applications
• 4" high temperature Inside/Outside voice coil efficiently dissipates
heat, preventing sensitivity loss through thermal compression
Frequency Response and Impedance Curves
110
90
70
Celestion International Ltd, Claydon Business Park, Great Blakenham, Ipswich IP6 ONL, UK
+44 (0)1473 835300 [email protected] www.celestionprofessional.com
Celestion adopts a progressive policy and reserve the right to alter drive unit specifications and/or appearance without prior notice 08/05
70
50
30
Measured - 1W @ 1m, 2π
General Specifications
Nominal diameter (mm/in) .......................................381/15
Power Rating (AES, W rms)...........................................400
Nominal impedance ( Ω ) ...................................................8
Voice coil diameter (mm/in) .................................101.6/4.0
Magnet type.....................................................Neodymium
Chassis type ...............................................Cast aluminium
Sensitivity (dB) ...............................................................98
Frequency range (Hz) ............................................40-3000
Coil material ....................................Copper clad aluminium
Cone material.......................................Kevlar loaded paper
Surround material............................................Cloth-sealed
Suspension...............................................................Single
Xmax (mm/in) .......................................................2.0/0.08
Gap depth (mm/in)..............................................12.0/0.47
Voice coil winding width (mm/in)..........................16.0/0.63
Small Signal Parameters
D (m/in)..............................................................0.33/8.38
F
(Hz) ........................................................................48.3
s
M
(g/oz)........................................................57.37/2.03
md
M
(g/oz).....................................................14.149/0.499
air
Q
............................................................................2.76
ms
Q
.............................................................................0.24
es
Q
.............................................................................0.22
ts
R
( Ω ) ........................................................................5.91
e
V
(lt/ft
3
) ........................................................156.85/5.54
as
BI (Tm) .....................................................................23.17
C
(mm/N) ................................................................0.15
ms
R
(kg/s) ...................................................................7.88
ms
L
(mH).......................................................................0.43
e
Mounting Information
Overall diameter (mm/in) ....................................395/15.55
Overall depth (mm/in).............................................132/5.2
Cut-out diameter (mm/in) ...................................350/13.78
Mounting slot dimensions (mm/in)............7 x 9/0.28 x 0.35
Number of mounting slots ................................................8
Mounting slot PCD range (mm/in) .....376-378/14.80-14.88
Unit weight (kg/lb).................................................5.8/12.8
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