JBL P1222 User Manual

SPECIFICATIONS
D IAMETER : 12" (305 MM )
S
E
NSITIVITY
(2.83 V @ 1 M ): 97 dB
P
OWER H ANDLING : 400 W 1600 W
PEAK
R
MS
F REQUENCY R ESPONSE : 23 ~ 450 H Z
N OMINAL I MPEDANCE :2 OHMS (PER COIL)
V OICE -C OIL D IAMETER : 3.0" (76.2 MM )
D
IMENSIONS :
THIELE-SMALL PARAMETERS
V OICE C OIL D C R ESISTANCE :R
EVC
( OHMS ) . . . . . . 1.00
V
OICE C OIL I NDUCTANCE @ 1 K H Z : L
EVC
( M H) . . . . . . . 1.10
D
RIVER R ADIATING A REA :S
D
( IN
2
) . . . . . . . . 87.11
S
D
. . . . . . 562.00
M
OTOR F ORCE F ACTOR :B L (T M ) . . . . . . . . 10.00
C
OMPLIANCE V OLUME :V
AS
( FT
3
) . . . . . . . . 1.53
V
AS
( LITERS ) . . . . . 43.30
S
USPENSION C OMPLIANCE :C
MS
(µ M /N) . . . . 96.00
M
OVING M ASS , A IR L OAD :M
MS
( GRAMS ). . . . 323.00
M
OVING M ASS , D IAPHRAGM :M
MD
( GRAMS ) . . . 315.80
F
REE -A IR R ESONANCE :F
S
(H Z ) . . . . . . . . 28.60
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . 9.04
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . . 0.58
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.55
M
AGNETIC -G AP H EIGHT :H
AG
( IN ) . . . . . . . . 0.48
H
AG
( MM ) . . . . . . . 12.00
V
OICE -C OIL H EIGHT :H
VC
( IN ). . . . . . . . . 1.58
H
VC
( MM ). . . . . . . 40.00
M
*VOICE COIL CONNECTED IN PARALLEL
AXIMUM E XCURSION :X
MAX
( IN ) . . . . . . . . .56
X
MAX
( MM ) . . . . . . 14.00
SEALED ENCLUSURE VOLUME
(INCLUDES DRIVER DISPLACEMENT)
SEALED ENCLOSURE
FREQUENCY RESPONSE @ 2.83 V
SEALED ENCLOSURE TRANSDUCER
EXCURSION @ 400 W
JBL Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.com
P1222 12" Woofer – Technical Data
mounting depth
6-3/4" (171 mm)
cutout diameter
11-1/16" (281mm)
outer diameter
14-5/8" (371mm)
V
B
OX
= 1.00 ft
3
(28.32 liters)
P1222
(
side view)
20 Hz
30 40 50 60 70 80 90
100
200 300
20 Hz
30 40 50 60 70 80 90
100
200 300
dBSPL
M
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m
In-Car
1
2 dB LP @ 80 Hz
Out-Of-Car
®
(stuffed with loose-packed fiberfill)
65
70
75
80
85
90
95
100
105
110
115
( CM
2
)

JBL P1222 Specifications

General

Type	Car Subwoofer
Size	12 inches
Power Handling (RMS)	400 watts
Power Handling (Peak)	1200 watts
Impedance	2 Ohms
Sensitivity	93 dB
Voice Coil Diameter	2.5 inches
Cone Material	Polypropylene

Summary

Woofer Specifications

General Specifications

Details on diameter, sensitivity, power handling, frequency response, impedance, and voice coil diameter.

Dimensions

Physical measurements including mounting depth, cutout diameter, and outer diameter.

Thiele-Small Parameters

Sealed Enclosure Performance

Sealed Enclosure Volume

Recommended enclosure volume for optimal driver performance, including displacement.

Sealed Enclosure Frequency Response

Frequency response curve for the woofer in a sealed enclosure at 2.83V.

Sealed Enclosure Transducer Excursion

Woofer excursion graph in a sealed enclosure at 400W power handling.

Enclosure Design Options

Vented Enclosure Volume

Volume and port dimensions for a vented enclosure, including driver displacement.

Vented Enclosure Frequency Response

Frequency response for the woofer in a vented enclosure at 2.83V.

Vented Enclosure Transducer Excursion

Woofer excursion graph in a vented enclosure at 400W power handling.

Bandpass Enclosure Volume

Volume and port dimensions for a bandpass enclosure, including driver displacement.

Bandpass Enclosure Frequency Response

Frequency response for the woofer in a bandpass enclosure at 2.83V.

Bandpass Enclosure Transducer Excursion

Woofer excursion graph in a bandpass enclosure at 400W power handling.