12"- 140W Ceramic Guitar Loudspeaker 

C 12/70 EL - 16 

Ω 

Code ZJ06385

 

 

GENERAL CHARACTERISTICS

 

 

ELECTRICAL CHARACTERISTICS

 

Nominal Overall Diameter  .................

307 mm   Nominal 

Impedance...........................

16 

Ω 

Nominal Voice Coil Diameter ..............

50 mm   Musical 

Power .................................

140 

W 

Magnet Weight ...............................

1450 g  

Rated 

Power* ..................................

70 

W 

Flux Density...................................

1.15  T 

 

Sensitivity @ 1 W, 1 m .......................

98.1  dB 

Weight .........................................

4.50 Kg 

 

 

  

 

 

THIELE-SMALL PARAMETERS

 

Voice Coil DC Resistance ...........

R

E

 

11.94 

Ω

 

Resonance Frequency ...............

f

s

 

93.0 Hz 

Mechanical Q Factor.................

Q

MS

 

14.50  

Electrical Q Factor...................

Q

ES

 

0.93  

Total Q Factor........................

Q

TS

 

0.88  

Mechanical Moving Mass ............

M

MS

 

28.3 g 

Mechanical Compliance.............

C

MS

 

103 

µ

m/N 

Force Factor ..........................

B×l 

14.56 Wb/m 

Equivalent Acoustic Volume........

V

AS

 

35.3 lt. 

Maximum Linear Displacement ....

X

MAX

 

+/-1.0 mm 

Reference Efficiency ................

η

0

 

2.92 % 

Diaphragm Area ......................

S

D

 

490.9 cm

2

 

Losses Electrical Resistance........

R

ES

 

185.7 

Ω

 

Voice Coil Inductance @ 1kHz .....

L

E

 

0.80 mH

 

 

 

CONSTRUCTIVE CHARACTERISTICS

 

Magnet.................................

Ferrite 

Voice Coil Winding...................

Aluminium 

Voice Coil Former....................

Kapton 

Cone ...................................

Paper 

Surround...............................

Paper - Integrated 

 

Dust Dome ............................

Non Treated Cloth 

Basket ................................. Pressed Sheet Steel 

 

 

 
 
 

Frequency Response on IEC Baffle (DIN 45575) @ 1 W, 1 m – Free Air Impedance 

                      Due to continuing product improvement, the features and the design are subject to change without notice.

     

15/07/11

 

 

SICA Altoparlanti s.r.l. - ITALY – website: www.sica.it - E-mail: lab@sica.it - Tel. +39-071-7958072 - Fax +39-071-7959006 

 

307.0

n° 8 holes Ø 6.5

at 45° on Ø 293.5

277.0

4.3

12

6

.0

91.0

8.0

2.7

35.0

Ø 155.0

 

 

3  

5 0 0  

5  

1 0  

2 0  

5 0  

1 0 0  

2 0 0  

Ω  

+ 6 0  

+ 1 1 0  

+ 6 5  

+ 7 0  

+ 7 5  

+ 8 0  

+ 8 5  

+ 9 0  

+ 9 5  

+ 1 0 0  

+ 1 0 5  

d  

B  

   

S  

P  

L  

2 0  

2 0 k  

5 0   1 0 0  2 0 0  

5 0 0   1 k   2 k  

5 k   1 0 k  

H z  

 

*rated power measured with 2 hours test with pink noise signal, 6 dB crest factor, loudspeaker mounted on enclosure 

Thiele-Small parameters measured with LASER system