Alt.Neodymium Sica 15 500W 8R Fs 48,1 Hz - Manual Sonigate
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Transcript of Alt.Neodymium Sica 15 500W 8R Fs 48,1 Hz - Manual Sonigate
15”- 500W Professional Woofer 15 N2,5 - 8 Ω Code Z008221
GENERAL CHARACTERISTICS ELECTRICAL CHARACTERISTICS
Nominal Overall Diameter ................. 388 mm Nominal Impedance........................... 8 Ω Nominal Voice Coil Diameter .............. 65 mm Musical Power ................................. 500 W Magnet Weight ............................... 220 g Rated Power* .................................. 250 W Flux Density................................... 1.22 T Sensitivity @ 1 W, 1 m ....................... 98.7 dB Weight ......................................... 3.10 Kg
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance ........... RE 5.80 Ω Resonance Frequency ............... fs 47.7 Hz Mechanical Q Factor................. QMS 11.45 Electrical Q Factor................... QES 0.49 Total Q Factor........................ QTS 0.47 Mechanical Moving Mass ............ MMS 74.7 g Mechanical Compliance............. CMS 150 µm/N Force Factor .......................... B×l 16.28 Wb/m Equivalent Acoustic Volume........ VAS 154.2 lt. Maximum Linear Displacement .... XMAX +/-3.0 mm Reference Efficiency ................ η0 3.29 % Diaphragm Area ...................... SD 855.3 cm2 Losses Electrical Resistance........ RES 135.6 Ω Voice Coil Inductance @ 1kHz ..... LE 0.8 mH
CONSTRUCTIVE CHARACTERISTICS
Magnet................................. Neodymium Voice Coil Winding................... Copper Voice Coil Former.................... Kapton Cone ................................... Paper Surround............................... Treated Cloth Dust Dome ............................ Solid Paper Basket ................................. Aluminium Die-Cast
Frequency Response on IEC Baffle (DIN 45575) @ 1 W, 1 m - Impedance
Due to continuing product improvement, the features and the design are subject to change without notice. 13/03/07
SICA Altoparlanti s.r.l. - ITALY – website: www.sica.it - E-mail: [email protected] - Tel. +39-071-7958072 - Fax +39-071-7959006
4.0
104.
58.
5
n° 8 holes 6x9on Ø371.0
Ø388.0
Ø35
3.0
98.0
40.0
144.
5
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
Frequency Response: enclosure volume 80l, port tuning 58Hz (thick curve on axis, thin curve 30° off axis)
Le: electrical inductance variation with voice coil displacement
Kms: stiffness of suspension variation with voice coil displacement
Cms: mechanical compliance variation with voice coil displacement
Bl(X): force factor variation with voice coil displacement
Power test done with intermittent excitation, ON interval 2min, duty cycle 50%, pink noise signal 6dB crest factor with frequency range 50-2000Hz.
0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
-5.0 -2.5 0.0 2.5 5.0
Force factor Bl (X) Bl [N/A]
<< Coil in X [mm] coil out >>
-Xprot < X < Xprot Xp- < X < Xp+ Bl (-X)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
-5.0 -2.5 0.0 2.5 5.0
Electrical inductance Le (X) Le [mH]
<< Coil in X [mm] coil out >>
-Xprot < X < Xprot Xp- < X < Xp+
0
1
2
3
4
5
6
7
8
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Stiffness of suspension Kms (X) Kms [N/mm]
<< Coil in X [mm] coil out >>
-Xprot < X < Xprot Xp- < X < Xp+ Kms (-X)
0.000
0.025
0.050
0.075
0.100
0.125
0.150
0.175
0.200
0.225
-5.0 -2.5 0.0 2.5 5.0
Mechanical compliance Cms (X) Cms [mm/N]
<< Coil in X [mm] coil out
-Xprot < X < Xprot Xp- < X < Xp+ Cms (-X)
15N2,5 GRAPHICS AND MEASUREMENTS 15” speaker – 2,5”voice coil
KLIPPEL
KLIPPEL
KLIPPEL KLIPPEL
Increase of voice coil temperature Delta Tv(t) and electrical input power(t)
0
100
200
300
400
500
0 12 25 39 52 65 79 92 105 119
t [sec]
Nom
inal
Pow
er [W
]
0
50
100
150
200
250
300
350
Voic
ec C
oil T
empe
ratu
re [°
C]
Nominal Power Voice coil temperature
+60
+110
+65
+70
+75
+80
+85
+90
+95
+100
+105
dB
SPL
20 20k50 100 200 500 1k 2k 5k 10k
Hz