[. . . ] [. . . ] 5. 46
95
Out-Of-Car
90
85
80
75
70
65 20 Frequency 50 100 Hz 200 500 1k
C
2k
INFINITE BAFFLE EXCURSION/GROUP DELAY @ 150 W
20. 0 Xd mM T mSec 10. 0 17. 5 7. 5
15. 0
5. 0
12. 5 Group Delay 10. 0
2. 5
0. 0
7. 5
-2. 5
5. 0 Transducer Excursion
-5. 0
2. 5
-7. 5
0. 0 20 Frequency 50 100 Hz 200 500 1k
-10. 0 2k
C
JBL Technical Data . 7·53
1500GTi 15" Woofer Technical Data
SEALED BOX VOLUME VENTED BOX VOLUME
length = 9. 46"
(2) Ports
fo = 39 Hz
GTi1500
(side view)
GTi1500
(side view)
VBOX = 1. 85 ft (52. 39 liters) (all sides lined with 1-inch fiberglass or fiberfill)
3
VBOX = 2. 86 ft (81. 00 liters) (all sides lined with 1-inch fiberglass or fiberfill)
3
diameter = 4. 0"
SEALED FREQUENCY RESPONSE @ 2. 83 V
105 dB 105 In-Car 12 dB LP @ 70 Hz 100 100
VENTED FREQUENCY RESPONSE @ 2. 83 V
dB In-Car 12 dB LP @ 70 Hz
95 Out-Of-Car
95
90
90
85
85
Out-Of-Car
80
80
75
75
70
70
65 20 Frequency 50 100 Hz 200 500 1k
C
65 20 Frequency 50 100 Hz 200 500 1k
C
2k
2k
SEALED EXCURSION/GROUP DELAY @ 500 W
20. 0 Xd mM T mSec 10. 0 40 17. 5 7. 5 35
VENTED EXCURSION/GROUP DELAY @ 600 W
Xd mM T mSec 20 15
15. 0
5. 0
30
10
12. 5 Group Delay 10. 0
2. 5
25 Group Delay
5
0. 0
20
0
7. 5
-2. 5
15
-5
5. 0 Transducer Excursion
-5. 0
10 Transducer Excursion
-10
2. 5
-7. 5
5
-15
0 20 Frequency 50 100 Hz 200 500 1k
-10. 0 2k
C
0 20 Frequency 50 100 Hz 200 500 1k
C
-20
2k
7·54 . JBL Technical Data
1500GTi 15" Woofer Technical Data
SEALED BANDPASS BOX VOLUME NOTES
(2) Ports
fo = 75 Hz
length = 8. 53"
GTi1500
(side view) diam. = 4"
VREAR =
1. 85 ft3 (52. 39 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
VFRONT = 1. 00 ft3 (28. 32 liters)
SEALED BANDPASS FREQUENCY RESPONSE @ 2. 83 V
105 dB In-Car 12 dB LP @ 80 Hz 100
95
Out-Of-Car
90
85
80
75
70
65 20 Frequency 50 100 Hz 200 500 1k
C
2k
SEALED BANDPASS EXCURSION/GROUP DELAY @ 500 W
20. 0 Xd mM T mSec 40 17. 5 30
15. 0
20
12. 5
Group Delay
10
10. 0
0
7. 5
-10
5. 0 Transducer Excursion 2. 5
-20
-30
0. 0 20 Frequency 50 100 Hz 200 500 1k
C
-40
2k
JBL Technical Data . [. . . ] [. . . ]