Professional Loudspeakers
Your Global Driver Solutions Partner
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
NTR08-2011D
General Specifications
Nominal diameter (mm/in) .........................................203/8
Power Rating (AES, W rms) ..........................................200
Nominal impedance (
Ω
) ...................................................8
Voice coil diameter (mm/in) ...................................50.8/2.0
Magnet type.....................................................Neodymium
Chassis type ...............................................Cast aluminium
Sensitivity (dB) ...............................................................92
Frequency range (Hz) ............................................70-6000
Coil material..................................................Round copper
Cone material.......................................Kevlar loaded paper
Surround material............................................Cloth-sealed
Suspension...............................................................Single
Xmax (mm/in) .......................................................4.0/0.16
Gap depth (mm/in)................................................8.0/0.32
Voice coil winding width (mm/in)..........................15.0/0.63
Small Signal Parameters
D (m/in)..............................................................0.17/6.69
F
s
(Hz) ........................................................................80.3
M
md
(g/oz)......................................................23.39/0.826
M
air
(g/oz) .........................................................1.94/0.068
Q
ms
............................................................................1.33
Q
es
.............................................................................0.59
Q
ts
.............................................................................0.41
R
e
(
Ω
) ........................................................................5.85
V
as
(lt/ft
3
) ..........................................................11.3/0.399
BI (Tm) .....................................................................11.22
C
ms
(mm/N) ................................................................0.16
R
ms
(kg/s) .....................................................................9.6
L
e
(mH).......................................................................0.59
Mounting Information
Overall diameter (mm/in) ........................................225/8.8
Overall depth (mm/in)...........................................100/4.16
Cut-out diameter (mm/in) .......................................187/7.4
Mounting slot dimensions (mm/in) .........................6.5/0.26
Number of mounting slots ................................................8
Mounting slot PCD/ width accross flats ...................210/8.3
Unit weight (kg/lb)...............................................1.52/3.34
Packed Dimensions & Weight
Multipack (120) size W x D x H (mm/in) .....1500x1000x980
................................................................/59.1x39.4x38.7
Multipack (120) weight (kg/lb) ...............................210/462
Unit conditioned prior to measurement.
• 8" neodymium magnet driver with 2" voice coil, providing
200Wrms (AES) continuous power handling
• Suitable for line array applications, utilizing a space-efficient
octagonal chassis profile
• Optimized flux distribution in the magnet assembly provides low
harmonic distortion
• M-roll surround provides progressive excursion control,
generating a smooth frequency response
• Intelligent heat management in both chassis and magnet
assembly design offers reduced thermal compression
70
90
110
30
50
70
Frequency Response and Impedance Curves
Measured - 1W @ 1m, 2
π
