JBL GTO1220D User Manual

SPECIFICATIONS
DIAMETER: 12" (304.8 MM)
S
ENSITIVITY (2.83 V @ 1 M): 94 dB
P
OWER HANDLING: 300 W
RMS
(1,200 W
PEAK
)
F
REQUENCY RESPONSE: 20 ~ 450 HZ
NOMINAL IMPEDANCE:2 OHMS (PER COIL)
V
OICE-COIL DIAMETER: 3.0" (76.2 MM)
D
IMENSIONS:
THIELE-SMALL PARAMETERS*
VOICE COIL DC RESISTANCE:R
EVC
(OHMS) . . . . . 1.000
V
OICE COIL INDUCTANCE @ 1 KHZ:L
EVC
(MH) . . . . . . 0.193
D
RIVER RADIATING AREA:S
D
(IN
2
) . . . . . . . . 74.71
S
D
(CM
2
) . . . . . . 482.00
M
OTOR FORCE FACTOR:BL (TM) . . . . . . . . . 8.68
C
OMPLIANCE VOLUME:V
AS
(FT
3
) . . . . . . . . 1.96
V
AS
(LITERS) . . . . . 55.46
S
USPENSION COMPLIANCE:C
MS
(µM/N) . . . . 168.09
M
OVING MASS, AIR LOAD:M
MS
(GRAMS). . . . 212.93
MOVING MASS, DIAPHRAGM:M
MD
(GRAMS) . . . 206.84
F
REE-AIR RESONANCE:F
S
(HZ) . . . . . . . . 26.60
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . 6.69
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . . 0.47
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.44
M
AGNETIC-GAP HEIGHT:H
AG
(
IN) . . . . . . . . . 0.47
H
AG
(MM) . . . . . . . 12.00
V
OICE-COIL HEIGHT:H
VC
(
IN) . . . . . . . . . 1.28
H
VC
(MM) . . . . . . . 32.50
M
AXIMUM EXCURSION:X
MAX
(IN) . . . . . . . .0.40
X
MAX
(MM) . . . . . . 10.25
*
VOICE COILS CONNECTED IN PARALLEL
SEALED BOX VOLUME
(INCLUDES DRIVER DISPLACEMENT)
SEALED
FREQUENCY RESPONSE @ 2.83 V
SEALED
TRANSDUCER EXCURSION @ 400 W
JBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.com
GTO1220D 12" Woofer – Technical Data
mounting depth
6.81" (174.00 mm)
cutout diameter
10.88" (277.00 mm)
outer diameter
12.31" (313.00 mm)
V
BOX
= 1.00 ft
3
(28.32 liters)
(stuffed with loosely-packed fiberfill)
GTO1220D
(side view)
C
dB
100
95
90
85
80
75
70
65
60
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
C
Xd mM
20.0
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 GTO1220D Specifications

General

Brand	JBL
Model	GTO1220D
Category	Subwoofer
Language	English

Summary

Speaker Specifications

Dimensions

Provides key physical measurements including diameter, mounting depth, and cutout diameter.

Sealed Box Volume

Thiele-Small Parameters

Sealed Enclosure Frequency Response

Sealed Enclosure Transducer Excursion

Vented Box Volume

Vented Enclosure Frequency Response

Vented Enclosure Transducer Excursion

Sealed Bandpass Box Volume

Sealed Bandpass Frequency Response

Sealed Bandpass Transducer Excursion