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FTR12-3070C
• 12" ferrite mid/bass driver offers 350Wrms (AES) continuous
power handling
• 3" high temperature Inside/Outside voice coil efficiently dissipates
heat, preventing sensitivity loss due to thermal compression
• Low frequency response, down to 40Hz
• Intelligent heat management in both chassis and magnet assembly
design further minimizes distortion
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
Preliminary Data
General Specifications
Nominal diameter (mm/in) .......................................305/12
Power Rating (AES, W rms) ..........................................350
Nominal impedance ( Ω ) ...................................................8
Voice coil diameter (mm/in) ...................................76.2/3.0
Magnet type .............................................................Ferrite
Chassis type ...............................................Cast aluminium
Sensitivity (dB) ...............................................................96
Frequency range (Hz) ............................................40-4000
Coil material..................................................Round copper
Former material..................................................Glass fibre
Cone material.................................Glass loaded paper with
...........................................weather resistant impregnation
Surround material............................................Cloth-sealed
Suspension...............................................................Single
Xmax (mm/in) .......................................................3.0/0.12
Gap depth (mm/in)..............................................10.0/0.40
Voice coil winding width (mm/in)..........................16.0/0.63
Small Signal Parameters
D (m/in)............................................................0.26/10.24
F
(Hz) ........................................................................48.1
s
M
(g/oz)........................................................50.65/1.78
md
M
(g/oz)...........................................................6.92/0.24
air
Q
............................................................................3.10
ms
Q
.............................................................................0.34
es
Q
.............................................................................0.30
ts
R
( Ω ) ........................................................................5.56
e
V
(lt/ft
) ..........................................................75.82/2.67
3
as
BI (Tm) .....................................................................17.00
C
(mm/N) ................................................................0.19
ms
R
(kg/s) ...................................................................5.61
ms
L
(mH).......................................................................1.25
e
Mounting Information
Overall diameter (mm/in) ......................................313/12.3
Overall depth (mm/in)...........................................102/4.02
Cut-out diameter (mm/in) .....................................232/9.13
Mounting slot dimensions (mm/in) ..........6.5/0.26 x 7.5/0.3
Number of mounting slots ................................................8
Mounting slot PCD range (mm/in) .............244-247/9.6-9.7
Unit weight (kg/lb).................................................6.3/13.9
Packed Dimensions and Weight
Single pack size W x D x H (mm/in) ...........350 x 350 x 180
............................................................./13.8 x 13.8 x 7.1
Single pack weight (kg/lb) .....................................8.1/17.8
Multipack (60) size W x D x H (mm/in) ..........1210 x 1050 x
.....................................................980/47.6 x 41.3 x 35.4
Multipack (60) weight (kg/lb) .................................400/880
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