[. . . ] [. . . ] 4. 19
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 @ 50 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
-5. 0
2. 5 Transducer Excursion 0. 0 20 Frequency 50 100 Hz 200 500 1k
-7. 5
-10. 0 2k
C
JBL Technical Data . 7·41
P1500 15" Woofer Technical Data
SEALED BOX VOLUME VENTED BOX VOLUME
length = 5. 55"
Port
fo = 30 Hz
P1500
(side view)
P1500
(side view)
VBOX = 2. 25 ft (63. 72 liters) (all sides lined with 1-inch fiberglass or fiberfill)
3
VBOX = 3. 50 ft (99. 12 liters) (all sides lined with 1-inch fiberglass or fiberfill)
3
diameter = 4. 0"
SEALED FREQUENCY RESPONSE @ 2. 83 V
100 dB In-Car 12 dB LP @ 65 Hz 105 95 Out-Of-Car 100
VENTED FREQUENCY RESPONSE @ 2. 83 V
dB In-Car 12 dB LP @ 80 Hz
90
95
Out-Of-Car
85
90
80
85
75
80
70
75
65
70
60 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 @ 200 W
8. 0 Xd mM T mSec 10. 0 20. 0 7. 0 7. 5 17. 5
VENTED EXCURSION/GROUP DELAY @ 250 W
Xd mM T mSec 20 15
6. 0
5. 0
15. 0
10
5. 0 Group Delay 4. 0
2. 5
12. 5 Group Delay
5
0. 0
10. 0
0
3. 0
-2. 5
7. 5
-5
2. 0
-5. 0
5. 0
-10
1. 0
Transducer Excursion
C
-7. 5
2. 5
Transducer Excursion
C
-15
0. 0 Frequency 50 100 Hz 200 500 1k 2k
-10. 0
0 20 Frequency 50 100 Hz 200 500 1k
-20
2k
7·42 . JBL Technical Data
P1500 15" Woofer Technical Data
SEALED BANDPASS BOX VOLUME
(2) Ports
fo = 60 Hz length = 7. 69"
NOTES
P1500
(side view) diam. = 4"
VREAR = 2. 25 ft3 (63. 72 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
VFRONT = 1. 40 ft3 (39. 65 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
SEALED BANDPASS FREQUENCY RESPONSE @ 2. 83 V
105 dB In-Car 12 dB LP @ 90 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 @ 175 W
8. 0 Xd mM T mSec 20 7. 0 15
6. 0
Group Delay
10
5. 0
5
4. 0
0
3. 0 Transducer Excursion 2. 0
-5
-10
1. 0
-15
0. 0 20 Frequency 50 100 Hz 200 500 1k
C
-20
2k
JBL Technical Data . [. . . ] [. . . ]