Professional Loudspeakers
Your Global Driver Solutions Partner
Celestion International Ltd, Claydon Business Park, Great Blakenham, Ipswich IP6 ONL, UK
Celestion adopts a progressive policy and reserve the right to alter drive unit specifications and/or appearance without prior notice 08/05
TN1525
General Specifications
Nominal diameter (mm/in) ........................................381/15
Power rating (AES, W rms) ...........................................250
Nominal impedance (
Ω
) ...................................................8
Voice coil diameter (mm/in) ...................................63.5/2.5
Magnet type.....................................................Neodymium
Chassis type....................................................Pressed steel
Sensitivity (dB)...............................................................100
Frequency range (Hz) ............................................45-3000
Coil material..................................................Round copper
Former material ...................................................Polyimide
Cone material.......................................Kevlar loaded paper
Surround material............................................Cloth-sealed
Suspension...............................................................Single
Xmax (mm/in) .....................................................2.5/0.092
Gap depth (mm/in)................................................8.0/0.32
Voice coil winding width (mm/in)..........................13.0/0.51
Small Signal Parameters
D (m/in) .......................................................... 0.33/12.99
Fs(Hz) ........................................................................47.1
Mmd (g/oz)........................................................60.45/2.12
Mair (g/oz).........................................................14.15/0.49
Qms ..............................................................................6.5
Qes.............................................................................0.43
Qts ...............................................................................0.4
Re(
Ω
) ........................................................................5.36
Vas (lt/ft
3
) ..........................................................158.2/5.54
BI (Tm) .....................................................................16.37
Cms (mm/N) ................................................................0.15
Rms (kg/s) .....................................................................3.4
Mounting Information
Overall diameter (mm/in) .................................. 385/15.16
Overall depth (mm/in).......................................... 155/6.10
Cut-out diameter (mm/in).................................. 352/13.86
Mounting slot dimensions (mm/in)..... 9.2 x 6.2/0.36 x 0.24
Number of mounting slots ............................................... 8
Mounting PCD range (mm/in) ............................ 369/14.53
Unit weight (kg/lb).................................................. 2.4/5.2
Packed Dimensions & Weight
Single pack size W x D x H (mm/in)...........410 x 410 x 180
............................................................ /16.1 x 16.1 x 7.1
Single pack weight (kg/lb) ..................................... 2.5/5.5
Multi pack (45) size W x D x H (mm/in) .... 1200 x 1000 x 980
.......................................................... /47.2 x 39.4 x 38.6
Multi pack (45) weight (kg/lb) .............................. 115/254
• 12" bass/mid range driver offers 250Wrms (AES) continuous
power handling and 100dB sensitivity
• Features compact and lightweight neodymium magnet assembly
• Smart use of venting and specially designed heatsink for reduced
thermal compression
• Effective flux management enables increased sensitivity
Frequency Response and Impedance Curves
