HARMAN KARDON REFERENCE1211W
Service Manual

Reference 1211w 12" Woofer � Technical Data
SEALED BOX VOLUME VENTED BOX VOLUME

length = 8.11"

Port
fo = 35 Hz

Reference 1211w
(side view)

Reference 1211w
(side view)

VBOX = 1.50 ft3 (42.48 liters)
(all sides lined with 1-inch fiberglass or fiberfill)

VBOX = 2.00 ft3 (56.64 liters)
(all sides lined with 1-inch fiberglass or fiberfill)

diameter = 4.0"

SEALED FREQUENCY RESPONSE @ 2.83 V
100 dB 100 In-Car 12 dB LP @ 70 Hz 95 95

VENTED FREQUENCY RESPONSE @ 2.83 V
dB In-Car 12 dB LP @ 80 Hz

90 Out-Of-Car 85

90 Out-Of-Car 85

80

80

75

75

70

70

65

65

60 20 Frequency 50 100 Hz 200 500 1k

C

60 20 Frequency 50 100 Hz 200 500 1k

C

2k

2k

SEALED EXCURSION/GROUP DELAY @ 250 W
20.0 Xd mM T mSec 20 40 17.5 15 35

VENTED EXCURSION/GROUP DELAY @ 300 W
Xd mM T mSec 40 30 Group Delay

15.0 Group Delay 12.5

10

30

20

5

25

10

10.0

0

20

0

7.5 Transducer Excursion 5.0

-5

15 Transducer Excursion

-10

-10

10

-20

2.5

-15

5

-30

0.0 20 Frequency 50 100 Hz 200 500 1k

C

-20

0 20 Frequency 50 100 Hz 200 500 1k

C

-40

2k

2k

Ininfity Technical Data . . . 8�9