Celestion cdx1-1415 Brochure

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NTR
• Lightweight, high-performance drivers designed for high-end sound reinforcement applications.
• BL and stiffness (K) symmetry contribute to low distortion.
• Intelligent heat management reduces thermal compression, further minimising distortion.
• High temperature, copper, ‘Inside/Outside’ voice coils wound in-house. 
• Rigid cast aluminium chassis for maximum mechanical integrity.
• Compact chassis design for space-efficient mounting in arrays.
• Extremely light weight design results in exceptional power-to-weight ratio.
Drawing on expertise gained in pioneering
the application of Neodymium magnet
structures to high-performance PA drivers,
the Celestion R&D team has created a new
range of high-end cast aluminium chassis
Neodymium drivers for professional sound
reinforcement applications – NTR.
With 6.5", 8", 10" and 12" models available
first in a range that will grow to include 15"
and 18" drivers, the new NTRs make
extensive use of Celestion’s advanced FEA
modelling techniques to achieve a number
of important performance advantages. 
With particular focus on linear excursion via
optimised suspension geometry and magnet
topology, NTR provides application-specific
control delivering more low frequency
output, reduced distortion and increased
longevity.
In addition to BL and stiffness (K)
symmetry, NTR also achieves low thermal
compression and distortion through
intelligent heat management. Smart chassis
design combines with vented magnet
assemblies to dissipate heat quickly.
NTR also provides system builders with a
particularly high power-to-weight ratio, and
compact chassis designs well suited to
close mounting in arrays.
NTR 
Cast Chassis, Neo Magnet Drivers
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
0.0
2.5
5.0
7.5
-2.5
-5.0
-7.5
0.0
2.5
5.0
7.5
-2.5
-5.0
-7.5
6
5
4
3
2
1
7
8
0
90
80
70
60
50
40
20
200
2k
20k
100
Typical NTR BL Symmetry
Typical NTR Stiffness (K) Symmetry
Typical NTR 2nd and 3rd harmonic distortion
2nd harmonic distortion                    3rd harmonic distortion
SPL (dB)
Frequency Response
Frequency (Hz)
Stiffness of suspension Kms (X)
Force factor BL (X)