INFINITY P12 1D 12
Service Manual

Kappa Perfect12.1d 12" Woofer �Technical Data
CAR AUDIO

VENTED BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS)

SEALED BANDPASS BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS)
Port
length = 10.70"

length = 12.33"

Port
fo = 32.0 Hz

fo = 40.0 Hz

Kappa Perfect12.1d
(side view)

Kappa Perfect12.1d
(side view) diam. = 4"

(all sides lined with 1-inch fiberglass or fiberfill)

VBOX = 1.75 ft3 (49.56 liters)

diameter = 4.0"

VREAR = 2.20 ft3 (62.30 liters)
(all sides lined with 1-inch fiberglass or fiberfill)

VFRONT = 1.25 ft3 (35.40 liters)
(all sides lined with 1-inch fiberglass or fiberfill)

VENTED FREQUENCY RESPONSE @ 2.83 V
105 dB In-Car 12 dB LP @ 90 Hz 105 100 100

SEALED BANDPASS FREQUENCY RESPONSE @ 2.83 V
dB In-Car 12 dB LP @ 90 Hz

95 Out-Of-Car 90

95

Out-Of-Car

90

85

85

80

80

75

75

70

70

65 20 Frequency 50 100 Hz 200 500 1k

C

65 20 Frequency 50 100 Hz 200 500 1k

C

2k

2k

VENTED TRANSDUCER EXCURSION @ 550 W
40 Xd mM 40 35 35

SEALED BANDPASS TRANSDUCER EXCURSION @ 475 W
Xd mM

30

30

25

25

20

20

15

15

10

10

5

5

0 20 Frequency 50 100 Hz 200 500 1k

C

0 20 Frequency 50 100 Hz 200 500 1k

C

2k

2k

Infinity Systems, Inc. � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.infinitysystems.com