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VENTED BOX VOLUME (INCLUDES
(INCLUDES DRIVER/PORT DISPLACEMENTS)
GT1241D
(side view)
3
V
= 2.00 ft
(56.64 liters)
BOX
(all sides lined with 1-inch fiberglass or fiberfill)
VENTED
FREQUENCY RESPONSE @ 2.83 V
dB
105
In-Car
12 dB LP @ 80 Hz
100
95
Out-Of-Car
90
85
80
75
70
65
20
Frequency
50
100 Hz
VENTED
EXCURSION/GROUP DELAY @ 300 W
Xd mM
40
35
30
25
Group Delay
20
15
10
5
Transducer Excursion
0
20
Frequency
50
100 Hz
Harman Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.com
GT1241D 12" Woofer – Technical Data
Port
length = 8.00"
f o = 35.0 Hz
diameter = 4"
200
500
1k
T mSec
200
500
1k
SEALED BANDPASS BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
GT1241D
(side view)
3
V
= 2.50 ft
(70.80 liters)
REAR
(all sides lined with 1-inch fiberglass or fiberfill)
SEALED BANDPASS
FREQUENCY RESPONSE @ 2.83 V
In-Car
dB
105
12 dB LP @ 60 Hz
100
95
Out-Of-Car
90
85
80
75
70
C
65
2 k
20
Frequency
50
SEALED BANDPASS
EXCURSION/GROUP DELAY @ 300 W
Xd mM
20
40
15
35
Group Delay
10
30
5
25
0
20
-5
15
-10
10
Transducer Excursion
-15
5
-20
0
C
2 k
20
Frequency
50
(2) Ports
f o = 55.0 Hz
diam. = 4"
V
= 1.25 ft
FRONT
(35.40 liters)
100 Hz
200
500
100 Hz
200
500
length =
11.00"
3
C
1k
2 k
T mSec
20
15
10
5
0
-5
-10
-15
-20
C
1k
2 k
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