JBL W12GTI Manuel d'instructions
SPECIFICATIONS
DIAMETER: 12" (304.8 MM)
SENSITIVITY (2.83V @ 1M): 91 dB
POWER HANDLING: 700 WRMS, 4,000 WPK
FREQUENCY RESPONSE: 18 HZ~ 1 KHZ
NOMINAL IMPEDANCE:6OHMS (PER COIL)
VOICE-COIL DIAMETER: 3.0" (76.2 MM)
BASKET DISPLACEMENT: 0.12 FT3 (3.40 LITERS)
DIMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DCRESISTANCE:R
EVC (OHMS)*. . . . . 3.20
VOICE COIL INDUCTANCE @ 1 KHZ:L
EVC (MH)* . . . . . . 0.75
DRIVER RADIATING AREA:S
D(FT2). . . . . . . . 0.516
SD(M2) . . . . . . . . 0.048
MOTOR FORCE FACTOR: BL (TM)*. . . . . . . 14.64
COMPLIANCE VOLUME:V
AS (FT3) . . . . . . . . 1.58
VAS (LITERS) . . . . . 44.75
SUSPENSION COMPLIANCE:C
MS (µM/N) . . . . 135.28
MOVING MASS, AIR LOAD:M
MS (GRAMS). . . . 184.80
MOVING MASS, DIAPHRAGM:M
MD (GRAMS) . . . 178.72
FREE-AIR RESONANCE:F
S(HZ) . . . . . . . . 31.83
MECHANICAL Q: QMS . . . . . . . . . . . 6.68
ELECTRICAL Q: QES. . . . . . . . . . . . 0.55
TOTAL Q: QTS. . . . . . . . . . . . 0.51
MAGNETIC-GAP HEIGHT:H
AG (IN). . . . . . . . . 1.00
HAG (MM) . . . . . . . 25.40
VOICE-COIL HEIGHT:H
VC (IN). . . . . . . . . 2.60
HVC (MM) . . . . . . . 66.04
MAXIMUM EXCURSION:X
MAX (IN) . . . . . . . .0.80
(ONE-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"(312.67mm)
VBOX = 1.00 ft3 (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 100Hz 200 500 1k 2k
Out-Of-Car
In-Car
12 dB LP@ 80Hz
C
Xd mM
40
35
30
25
20
15
10
5
0
20 Frequency 50 100 Hz 200 500 1k 2k
VENTED BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
VENTED
FREQUENCY RESPONSE @ 2.83 V
VENTED
TRANSDUCER EXCURSION @ 3000 W
SEALED BANDPASS BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
SEALED BANDPASS
FREQUENCY RESPONSE @ 2.83 V
SEALED BANDPASS
TRANSDUCER EXCURSION @ 2100 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
W12GTi
(side view)
Port
fo= 30.0 Hz
diameter = 4.0"
length = 13.31"
VBOX = 2.25 ft3 (63.72 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
C
dB
105
100
95
90
85
80
75
70
65 20 Frequency 50 100Hz 200 500 1k 2k
Out-Of-Car
In-Car
12 dB LP@ 80Hz
C
Xd mM
80
70
60
50
40
30
20
10
0
20 Frequency 50 100 Hz 200 500 1k 2k
VREAR = 1.50 ft3 (42.48 liters)
(all sides lined with 1-inch fiberglass or fiberfill) VFRONT = 2.00 ft3
(56.64 liters)
W12GTi
(side view)
diam. = 6.0"
Port
fo= 45.0 Hz length =
10.57"
C
dB
105
100
95
90
85
80
75
70
65 20 Frequency 50 100Hz 200 500 1k 2k
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 2k
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