Mackie PA261 Car Speaker User Manual


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Compact Two-Way Speaker System
PA261
oF 6 PAGES
5
O F 6 P A G E S
Directivity Index
Beamwidth vs. Frequency
Frequency Response is measured on-axis at a distance referenced back to
1m at 1-watt drive. Shown as a half space (2
π) environment.
Frequency (Hz)
SPL, 1W/1m (dB)
Impedance (ohms)
20
60
70
80
90
100
100
316
10
100 1000 10000 20000
Frequency (Hz)
Vert BW
Horz BW
–6 dB Beamwidth (degrees)
Directivity Index (DI), dB
Directivity Factor (Q)
20
60
10
20
0 0
10
100
1
120
180
240
300
360
100 1000 10000 20000
Frequency (Hz)
20 100 1000 10000 20000
24.02" (610mm)
10.04" (254mm)
4.52" (115mm)
3.14" (80mm)
3.77" (96mm)
11.46" (291mm)
9.13" (232mm)
6.70" (170.2mm)
13˚
15˚
5.0" (127mm)
8.95" (227.5mm)
8.95" (227.5mm)
6.29" (160mm)
15.82" (402mm)
2.75" (70mm)
4.33" (110mm)
1.37" (35mm)
11.46" (292mm)
SIDE
REAR
FRONT
TO
P
10.04" (255mm)
24.02" (610mm)
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