Transcript
15"- 700W
Professional Woofer 15 K3 - 8 Ω Code Z008331
GENERAL CHARACTERISTICS Nominal Overall Diameter ................. 388 mm Nominal Voice Coil Diameter .............. 75 mm Magnet Weight ............................... 560 g Flux Density................................... 1.42 T Weight ......................................... 4.00 Kg
Ω Hz
Ω W W dB
n° 8 holes 6x9 on Ø371
Ø388.0
Ø353.0
g µm/N Wb/m lt. mm % cm2 Ω mH 8.5
THIELE-SMALL PARAMETERS Voice Coil DC Resistance ........... RE 5.34 Resonance Frequency ............... fs 42.6 Mechanical Q Factor................. QMS 9.94 Electrical Q Factor................... QES 0.30 Total Q Factor........................ QTS 0.29 Mechanical Moving Mass ............ MMS 96.2 Mechanical Compliance ............. CMS 150 Force Factor .......................... B×l 21.44 Equivalent Acoustic Volume........ VAS 150.4 Maximum Linear Displacement .... XMAX +/-5.0 3.73 Reference Efficiency ................ η0 Diaphragm Area ...................... SD 855.3 Losses Electrical Resistance........ RES 177.5 Voice Coil Inductance @ 1kHz ..... LE 0.60
ELECTRICAL CHARACTERISTICS Nominal Impedance........................... 8 Musical Power ................................. 700 Rated Power* .................................. 350 Sensitivity @ 1 W, 1 m ....................... 99.7
52.0
156.5
104.5
4.0
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
127
*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 on IEC Baffle (DIN 45575) @ 1 W, 1 m - Impedance +110
500
+105 200
+100
+95
d
100
+90 50
B S
+85
Ω
P L
+80
20
+75 10 +70 5 +65 3 +60 20
50
100
200
500
Hz
1k
2k
5k
10k
Due to continuing product improvement, the features and the design are subject to change without notice. SICA Altoparlanti s.r.l. - ITALY – website: www.sica.it - E-mail:
[email protected] - Tel. +39-071-7958072 - Fax +39-071-7959006
20k
27/03/06
15K3
GRAPHICS AND MEASUREMENTS
15” speaker – 3”voice coil
Force factor Bl (X) Bl [N/A] -Xprot < X < Xprot
22.5
Xp- < X < Xp+
+110
Bl (-X)
KLIPPEL
+105
20.0
+100
17.5
d B
15.0 12.5
S P L
10.0 7.5
+95 +90 +85 +80 +75 +70
5.0
+65 2.5
+60 20
0.0 -7.5 << Coil in
-5.0
-2.5
0.0 X [mm]
2.5
5.0
7.5 coil out >>
50
100
200
500
1k
2k
5k
10k 20k
Hz
Frequency Response: enclosure volume 80l, port tuning 58Hz (thick curve on axis, thin curve 30° off axis)
Bl(X): force factor variation with voice coil displacement
Electrical inductance Le (X) Increase of voice coil temperature Delta Tv(t) and electrical input power(t)
Le [mH] Xp- < X < Xp+
Nominal Power
KLIPPEL
Voice coil temperature
1000
0.6
300
900 800
Nominal Power [W]
0.5
0.4
0.3
0.2
250
700 200
600 500
150
400 100
300 200
50
100 0.1
0
0 0
11
23
35
47
59
0.0 -7.5
-5.0
-2.5
<< Coil in
0.0
2.5
5.0
X [mm]
Le: electrical inductance variation with voice coil displacement
83
95
107
Power test done with intermittent excitation, ON interval 2min, duty cycle 50%, pink noise signal 6dB crest factor with frequency range 50-2000Hz.
Mechanical compliance Cms (X)
Stiffness of suspension Kms (X) ms [N/mm]
Cms [mm/N]
-Xprot < X < Xprot
Xp- < X < Xp+
-Xprot < X < Xprot
Kms (-X)
KLIPPEL
8 7
Xp- < X < Xp+
Cms (-X)
KLIPPEL
0.175 0.150
6
0.125
5 0.100 4 0.075 3 0.050
2
0.025
1
0.000
0 -7.5 << Coil in
-5.0
-2.5
0.0 X [mm]
2.5
5.0
7.5 coil out >>
Kms: stiffness of suspension variation with voice coil displacement
119
t [min]
7.5 coil out >>
71
-7.5 << Coil in
-5.0
-2.5
0.0 2.5 X [mm]
5.0
7.5 coil out
Cms: mechanical compliance variation with voice coil displacement
Voice Coil Temperature [°C]
-Xprot < X < Xprot
0.7
