HARMAN KARDON BETAFIFTEENX
Service Manual

Beta FifteenX 15" Woofer � Technical Data
SEALED BANDPASS BOX VOLUME
(2) Ports
fo = 50 Hz length = 14.50"

NOTES

Beta FifteenX
(side view) diam. = 4"

VREAR = 2.50 ft3 (70.80 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)

SEALED BANDPASS FREQUENCY RESPONSE @ 2.83 V
105 dB In-Car 12 dB LP @ 60 Hz 100

95

Out-Of-Car

90

85

80

75

70

65 20 Frequency 50 100 Hz 200 500 1k

C

2k

SEALED BANDPASS EXCURSION/GROUP DELAY @ 700 W
20.0 Xd mM T mSec 40 17.5 30

15.0

20

12.5

Group Delay

10

10.0

0

7.5

-10

5.0 Transducer Excursion 2.5

-20

-30

0.0 20 Frequency 50 100 Hz 200 500 1k

C

-40

2k

8�52 . . Infinity Technical Data