JBL P 1220 User Manual
|
|
|
P1220 12" Woofer – Technical Data |
SPECIFICATIONS |
|
|
SEALED BOX VOLUME |
DIAMETER: |
12" (304.8 |
MM) |
(INCLUDES DRIVER DISPLACEMENT) |
|
|||
SENSITIVITY (2.83 V @ 1 M): |
91 dB |
|
|
POWER HANDLING: |
400 WRMS (1,600 WPEAK) |
||
FREQUENCY RESPONSE: |
20 ~ 450 HZ |
|
|
NOMINAL IMPEDANCE: |
2 OHMS |
|
P1220 |
VOICE-COIL DIAMETER: |
3.0" (76.2 |
MM) |
(side view) |
|
|||
DIMENSIONS: |
|
|
|
mounting depth |
|
|
VBOX = 1.00 ft3 (28.32 liters) |
6.75" (172.00 mm) |
|
|
(stuffed with loosely-packed fiberfill) |
cutout diameter 11.00" (280.00 mm)
outer diameter 12.31" (313.00 mm)
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE: |
REVC (OHMS) . . . . |
. . 1.95 |
VOICE COIL INDUCTANCE @ 1 KHZ: |
LEVC (MH) . . . . . . |
. 0.99 |
DRIVER RADIATING AREA: |
SD (IN2) . . . . . . . . |
74.71 |
|
SD (CM2) . . . . . . |
482.00 |
MOTOR FORCE FACTOR: |
BL (TM) . . . . . . . . |
12.50 |
COMPLIANCE VOLUME: |
VAS (FT3) . . . . . . . |
. 1.67 |
|
VAS (LITERS) . . . . . |
47.40 |
SUSPENSION COMPLIANCE: |
CMS (µM/N) . . . . |
143.68 |
MOVING MASS, AIR LOAD: |
MMS (GRAMS). . . . |
214.80 |
MOVING MASS, DIAPHRAGM: |
MMD (GRAMS) . . . |
208.72 |
FREE-AIR RESONANCE: |
FS (HZ) . . . . . . . . |
28.65 |
MECHANICAL Q: |
QMS . . . . . . . . . . |
. 6.71 |
ELECTRICAL Q: |
QES . . . . . . . . . . . |
. 0.48 |
TOTAL Q: |
QTS . . . . . . . . . . . |
. 0.45 |
MAGNETIC-GAP HEIGHT: |
HAG (IN) . . . . . . . . |
. 0.47 |
|
HAG (MM) . . . . . . . |
12.00 |
VOICE-COIL HEIGHT: |
HVC (IN) . . . . . . . . |
. 1.72 |
|
HVC (MM) . . . . . . . |
43.80 |
MAXIMUM EXCURSION: |
XMAX (IN) . . . . . . . |
. 0.63 |
|
XMAX (MM) . . . . . . |
15.90 |
SEALED
FREQUENCY RESPONSE @ 2.83 V
100 |
dB |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
In-Car |
|
|
|
|
|
|
95 |
|
12 dB LP @ 80 Hz |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
90 |
|
|
|
|
|
|
|
|
|
|
Out-Of-Car |
|
|
|
|
|
|
85 |
|
|
|
|
|
|
|
|
80 |
|
|
|
|
|
|
|
|
75 |
|
|
|
|
|
|
|
|
70 |
|
|
|
|
|
|
|
|
65 |
|
|
|
|
|
|
|
|
60 |
|
|
|
|
|
|
|
|
|
20 |
Frequency |
50 |
100 Hz |
200 |
500 |
1k |
2 k |
SEALED
TRANSDUCER EXCURSION @ 450 W
20.0 Xd mM
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
20 |
Frequency |
50 |
100 Hz |
200 |
500 |
1k |
2 k |
JBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.com
P1220 12" Woofer – Technical Data
VENTED BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
length = 12.58" |
Port |
P1220 |
fo = 28.0 Hz |
|
|
(side view) |
|
VBOX = 2.25 ft3 (63.72 liters) |
diameter = 4" |
(stuffed with loosely-packed fiberfill) |
|
SEALED BANDPASS BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS)
|
Port |
length = |
|
fo= 44.9 Hz |
10.50" |
P1220 |
|
|
(side view) |
diam. = 6" |
|
|
|
|
|
VFRONT = 2.00 ft3 |
|
VREAR = 1.50 ft3 (42.48 liters) |
(56.64 liters) |
|
(stuffed with loosely-packed |
||
(stuffed with loosely-packed fiberfill) |
fiberfill) |
|
VENTED |
|
SEALED BANDPASS |
FREQUENCY RESPONSE @ 2.83 V |
|
FREQUENCY RESPONSE @ 2.83 V |
110 |
dB |
|
|
|
In-Car |
|
|
||
|
|
|
||
|
|
12 dB |
LP @ 80 Hz |
|
105 |
|
|
|
|
|
|
|
100 |
|
|
|
|
|
|
|
95 |
Out-Of-Car |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
90 |
|
|
|
|
|
|
|
85 |
|
|
|
|
|
|
|
80 |
|
|
|
|
|
|
|
75 |
|
|
|
|
|
|
|
70 |
|
|
|
|
|
|
|
20 |
Frequency |
50 |
100 Hz |
200 |
500 |
1k |
2 k |
110 dB
In-Car
12 dB LP @ 80 Hz
105
100
Out-Of-Car
95
90
85
80
75
70
20 |
Frequency |
50 |
100 Hz |
200 |
500 |
1k |
2 k |
VENTED
TRANSDUCER EXCURSION @ 500 W
40 |
Xd mM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
35 |
|
|
|
|
|
|
|
|
30 |
|
|
|
|
|
|
|
|
25 |
|
|
|
|
|
|
|
|
20 |
|
|
|
|
|
|
|
|
15 |
|
|
|
|
|
|
|
|
10 |
|
|
|
|
|
|
|
|
5 |
|
|
|
|
|
|
|
|
0 |
|
|
|
|
|
|
|
|
|
20 |
Frequency |
50 |
100 Hz |
200 |
500 |
1k |
2 k |
SEALED BANDPASS
TRANSDUCER EXCURSION @ 400 W
20.0 Xd mM
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
20 |
Frequency |
50 |
100 Hz |
200 |
500 |
1k |
2 k |
JBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.com
Loading...