Dayton UM12-22 User Manual

UM12-22

50

45

40

35

30

25

20

15

10

5

0

180°

90°

0 deg

-90°

-180°

125102050100 200500 1kHz 2k 5k 10k 20k

70

80

90

dBSPL Ohm

60

50

40

30

20

10

0

-10

-20

10 Hz 20 50 100 200 500 1K 2K 5K 10K

200

100

50

20

10

5

2

1

20K

Dual 2 ohm, 2-layer voice coils

One-piece Nomex honeycomb covered
with woven glass-fiber cone

UM12-22

Tall-boy rubber surround for extra-long
linear excursion

Dual linear stiffness spiders limit distortion
and rocking modes

Large copper sleeve and cap reduce
distortion due to inductance variations

Black anodized aluminum former and
black pole improves heat dissipation

Large vented pole piece and under-spider
venting

12" Ultimax DVC Subwoofer 2 ohm Per Coil

(2+2)

3.3

@ 1 kHz

1.22

24.9

3.45

0.71

0.59

193.2

0.21

490.9

12" Ultimax DVC Subwoofer 2 ohm Per Coil

Note: All parameters are derived with voice coils
wired in series.

932.7

11.8

71.6
19

63.5

84.0

600
20 -

1,000

4

Note: All dimensions in mm.

Last Revised: 12/7/2012