JBL GTO1204D Instruction manual

SPECIFICATIONS
DIAMETER:12" (305MM)
SENSITIVITY (2.83 V @ 1 M): 93 dB
POWER HANDLING:300 W1200 WPEAK
RMS
FREQUENCY RESPONSE: 23 ~ 400 HZ
NOMINAL IMPEDANCE:2or 8 OHMS
VOICE-COIL DIAMETER:2.0" (51.0 MM)
DIMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DCRESISTANCE:R
EVC (OHMS) . . . . . . 1.93
VOICE COIL INDUCTANCE @ 1 KHZ:L
EVC (MH) . . . . . . . 1.10
DRIVER RADIATING AREA:S
D(IN
2
) . . . . . . . . 82.46
SD(M
2
) . . . . . . . 532.00
MOTOR FORCE FACTOR:BL(TM) . . . . . . . 10.17
COMPLIANCE VOLUME:V
AS (FT
3
) . . . . . . . . 3.34
VAS (LITERS) . . . . . 94.47
SUSPENSION COMPLIANCE:C
MS (µM/N) . . . . 233.70
MOVING MASS, AIR LOAD:M
MS (GRAMS). . . . 181.00
MOVING MASS, DIAPHRAGM:M
MD (GRAMS) . . . 173.80
FREE-AIR RESONANCE:F
S(HZ) . . . . . . . . 24.50
MECHANICAL Q: QMS ...........6.97
ELECTRICAL Q: QES ...........0.52
TOTAL Q: QTS ............0.48
MAGNETIC-GAP HEIGHT:H
AG (IN) . . . . . . . . 3/8
HAG (MM) . . . . . . . . 9.00
VOICE-COIL HEIGHT:H
VC (IN) . . . . . . 1-5/16
HVC (MM) .. . . . . . . . . 34
MAXIMUM EXCURSION:X
MAX (IN) . . . . . . . . 1/2
XMAX (MM) . . . . . . 12.50
SEALED BOX VOLUME
(INCLUDES DRIVER DISPLACEMENT)
SEALEDENCLOSURE
FREQUENCYRESPONSE @ 2.83 V
SEALEDENCLOSURE CONE
EXCURSION @ 300 W
Harman Consumer Group •250 Crossways Park Drive •Woodbury, NY11797 • VOICE:516-674-4463 •www.infinitysystems.com
mounting depth
5-1/16" (129 mm)
cutout diameter
11-3/16" (284mm)
outer diameter
12-7/16" (316mm)
V
BOX
=1.00 ft
3
(28.32 liters)
JBLGTO 1204D
(side view)
20 Hz 30 40 50 60 70 80 90 100 200300
20 Hz 30 40 50 60 70 80 90 100 200300
dBSPL
55
60
65
70
75
80
85
90
95
100
105
M
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
GTO 1204D 12" Woofer – Technical Data

VENTED BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
VENTED ENCLOSURE
FREQUENCY RESPONSE @ 2.83 V
VENTED ENCLOSURE CONE
EXCURSION @ 300 W
BANDPASS BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
BANDPASS ENCLOSURE
FREQUENCY RESPONSE @ 2.83 V
BANDPASS ENCLOSURE CONE
EXCURSION @ 300 W
Harman Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 •VOICE: 516-674-4463 • www.infinitysystems.com
JBL GTO 1204D
(side view)
Port
fB=34.0 Hz
diameter = 4"
102mm
length = 10"
254mm
V
BOX
= 1.75 ft
3
(49.55 liters) V
REAR
= 1.00 ft
3
(28.32 liters) V
FRONT
=1.25 ft
3
(35.40 liters)
JBL GTO 1204D
(side view)
diam. = 4"
102mm
2 Ports
fB=62 Hz
length =
8"
204mm
20 Hz 30 40 50 60 70 80 90 100 200300
55
60
65
70
75
80
85
90
95
100
105
20 Hz 30 40 50 60 70 80 90 100 200300
55
60
65
70
75
80
85
90
95
100
105
dBSPL dBSPL
20 Hz 30 40 50 60 70 80 90 100 200300
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m M
20 Hz 30 40 50 60 70 80 90 100 200300
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m M
Out-Of-Car
Out-Of-Car
In-Car
12 dBLP @ 80 Hz In-Car
12 dBLP @ 80 Hz
GTO 1204D 12" Woofer – Technical Data