VENTED BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
VENTED ENCLOSURE
FREQUENCY RESPONSE @ 2.83 V
VENTED ENCLOSURE CONE
EXCURSION @ 300 W
BANDPASS BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
BANDPASS ENCLOSURE
FREQUENCY RESPONSE @ 2.83 V
BANDPASS ENCLOSURE CONE
EXCURSION @ 300 W
Harman Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-674-4463 • www.infinitysystems.com
Reference 1240w 12" Woofer – Technical Data
CAR AUDIO
Reference 1240w
(side view)
Port
fB = 30.0 Hz
diameter = 4"
102mm
length = 12-1/4"
312mm
V
BOX
= 2 ft
3
(56.63 liters)
V
REAR
= 1.25 ft
3
(35.40 liters)
V
FRONT
=1.25 ft
3
(35.40 liters)
Reference 1240w
(side view)
diam. = 4"
102mm
2 Ports
fB= 63 Hz
length =
8"
204mm
20 Hz
30
40
50
60
70 80 90 100
200300
55
60
65
70
75
80
85
90
95
100
105
20 Hz
30
40
50
60
70 80 90 100
200300
55
60
65
70
75
80
85
90
95
100
105
dBSPL
dBSPL
20 Hz
30
40
50
60
70 80 90 100
200300
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m M
20 Hz
30
40
50
60
70 80 90 100
200300
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m M
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
