Read JBL GT 1500 Service Tips online
V
BOX
=
2.50 ft
3
(70.80 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
GT1500
(side view)
C
dB
100
95
90
85
80
75
70
65
60
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 65 Hz
12 dB LP @ 65 Hz
C
Xd mM
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
T mSec
20
15
10
5
0
-5
-10
-15
-20
20 Frequency 50 100 Hz 200 500 1k 2 k
Transducer Excursion
Group Delay
GT1500
(side view)
(2) Ports
fo = 30 Hz
diameter = 4.0"
length = 10.86"
V
BOX
=
4.00 ft
3
(113.28 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
C
dB
105
100
95
90
85
80
75
70
65
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
12 dB LP @ 80 Hz
C
Xd mM
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
T mSec
20
15
10
5
0
-5
-10
-15
-20
20 Frequency 50 100 Hz 200 500 1k 2 k
Transducer Excursion
Group Delay
SEALED
BOX VOLUME
BOX VOLUME
SEALED
FREQUENCY RESPONSE @ 2.83 V
FREQUENCY RESPONSE @ 2.83 V
SEALED
EXCURSION/GROUP DELAY @ 200 W
EXCURSION/GROUP DELAY @ 200 W
VENTED
BOX VOLUME
BOX VOLUME
VENTED
FREQUENCY RESPONSE @ 2.83 V
FREQUENCY RESPONSE @ 2.83 V
VENTED
EXCURSION/GROUP DELAY @ 250 W
EXCURSION/GROUP DELAY @ 250 W
GT1500 15" Woofer – Technical Data
JBL Technical Data . . . . . 7•27
Click on the first or last page to see other GT 1500 service manuals if exist.