Frequency Response @ 2.83 V; Sealed Bandpass Box Volume - JBL P-1200 Technical Data

SEALED BANDPASS
BOX VOLUME
P1200
(side view)
3
V = 1.50 ft (42.48 liters)
REAR
(all sides lined with 1-inch fiberglass or fiberfill)
SEALED BANDPASS

FREQUENCY RESPONSE @ 2.83 V

dB
100
In-Car
12 dB LP @ 90 Hz
95
Out-Of-Car
90
85
80
75
70
65
60
20 Frequency 50 100 Hz
SEALED BANDPASS
EXCURSION/GROUP DELAY @ 200 W
Xd mM
20.0
17.5
15.0
12.5 Group Delay
10.0
7.5
5.0
Transducer Excursion
2.5
0.0
20 Frequency 50 100 Hz
7•40 . . . . . JBL Technical Data
P1200 12" Woofer – Technical Data
Port
length =
5.27"
f o = 65 Hz
diam. = 4"
3
V = 0.77 ft
FRONT
(21.81 liters)
(all sides lined with 1-inch
fiberglass or fiberfill)
200 500 1k
T mSec
200 500 1k
NOTES
C
2 k
40
30
20
10
0
-10
-20
-30
-40
C
2 k