JBL P-1500 Technical Data - Sealed Bandpass
SEALED BANDPASS
BOX VOLUME
SEALED BANDPASS
FREQUENCY RESPONSE @ 2.83 V
SEALED BANDPASS
EXCURSION/GROUP DELAY @ 175 W
NOTES
V
REAR
=
2.25 ft
3
(63.72 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
P1500
(side view)
V
FRONT
=
1.40 ft
3
(39.65 liters)
(all sides lined with 1-inch
fiberglass or fiberfill)
diam. = 4"
(2) Ports
fo= 60 Hz
length =
7.69"
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 @ 90 Hz
C
Xd mM
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
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
P1500 15" Woofer – Technical Data
JBL Technical Data . . . . . 7•43