JBL W12GTI User Manual

SPECIFICATIONS
DIAMETER: 12" (304.8 MM)
S
ENSITIVITY (2.83V @ 1M): 91 dB
P
OWER HANDLING: 700 W
RMS
, 4,000 W
PK
FREQUENCY RESPONSE: 18 HZ ~ 1 KHZ
NOMINAL IMPEDANCE:6 OHMS (PER COIL)
V
OICE-COIL DIAMETER: 3.0" (76.2 MM)
B
ASKET DISPLACEMENT: 0.12 FT
3
(3.40 LITERS)
D
IMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE:R
EVC
(OHMS)*. . . . . 3.20
V
OICE COIL INDUCTANCE @ 1 KHZ:L
EVC
(MH)* . . . . . . 0.75
D
RIVER RADIATING AREA:S
D
(FT
2
). . . . . . . . 0.516
S
D
(M
2
) . . . . . . . . 0.048
M
OTOR FORCE FACTOR: BL (TM)*. . . . . . . 14.64
C
OMPLIANCE VOLUME:V
AS
(FT
3
) . . . . . . . . 1.58
V
AS
(LITERS) . . . . . 44.75
S
USPENSION COMPLIANCE:C
MS
(µM/N) . . . . 135.28
M
OVING MASS, AIR LOAD:M
MS
(GRAMS). . . . 184.80
MOVING MASS, DIAPHRAGM:M
MD
(GRAMS) . . . 178.72
F
REE-AIR RESONANCE:F
S
(HZ) . . . . . . . . 31.83
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . 6.68
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . . 0.55
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.51
M
AGNETIC-GAP HEIGHT:H
AG
(IN). . . . . . . . . 1.00
H
AG
(MM) . . . . . . . 25.40
V
OICE-COIL HEIGHT:H
VC
(IN). . . . . . . . . 2.60
H
VC
(MM) . . . . . . . 66.04
M
AXIMUM EXCURSION:X
MAX
(IN) . . . . . . . .0.80
(O
NE-WAY LINEAR)X
MAX
(MM) . . . . . . 20.32
*
VOICE COILS CONNECTED IN PARALLEL
SEALED BOX VOLUME
(
INCLUDES DRIVER DISPLACEMENT
)
SEALED
FREQUENCY RESPONSE @ 2.83 V
SEALED
TRANSDUCER EXCURSION @ 2600 W
JBL, Incorporated • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.com
W12GTi 12" Woofer – Technical Data
mounting depth
10.25" (260.35 mm)
cutout diameter
11.00" (279.40 mm)
outer diameter
12.31" (312.67 mm)
V
BOX
= 1.00 ft
3
(28.32 liters)
(stuffed with loosely-packed fiberfill)
W12GTi
(side view)
C
dB
95
90
85
80
75
70
65
60
55
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
C
Xd mM
40
35
30
25
20
15
10
5
0
20 Frequency 50 100 Hz 200 500 1k 2 k

JBL W12GTI Specifications

General

Brand	JBL
Model	W12GTI
Category	Subwoofer
Language	English

Summary

Speaker Specifications

Driver Dimensions

Physical dimensions of the woofer, including mounting depth, cutout diameter, and outer diameter.

Thiele-Small Parameters

Key electro-acoustic parameters for enclosure design, such as DC resistance, compliance, and resonance frequency.

Sealed Enclosure Performance

Recommended Sealed Box Volume

Optimal sealed enclosure volume for the woofer, including driver displacement, with fiberfill.

Sealed Frequency Response

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

Sealed Transducer Excursion

Woofer excursion limits in a sealed enclosure at 2600W power input.

Vented Enclosure Data

Vented Box Volume

Recommended vented enclosure volume and port tuning frequency with fiberfill.

Vented Frequency Response

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

Vented Transducer Excursion

Woofer excursion limits in a vented enclosure at 3000W power input.

Sealed Bandpass Enclosure Data

Sealed Bandpass Box Volume

Recommended sealed bandpass enclosure volume and port tuning frequency with fiberfill.

Sealed Bandpass Frequency Response

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

Sealed Bandpass Transducer Excursion

Woofer excursion limits in a sealed bandpass enclosure at 2100W power input.