Page 1
Vision Series
Compact Two-Way Speaker System
The PA281 is an extremely versatile wide-dispersion,
PA281
SPEAKER
PA281
Features
O F 6 P A G E S
1
A PPLI C AT I O N S
o F 6 PA G ES
Page 2
PA281
Vert. Coverage Angle (–6 dB):
Height:
Width:
Depth:
Depth:
) input and referenced to 1 meter distance
SPEAKER
Speci cations
PA281
Compact Two-Way Speaker System
O F 6 P A G E S
2
o F 6 PA G ES
Page 3
PA281
Vertical Polars
200 Hz
250 Hz
315 Hz
400 Hz
30
°
60
°
90
°
120
°
150
°
180
°
210
°
240
°
270
°
300
°
330
°
–12–36
0°
500 Hz
630 Hz
800 Hz
1 kHz
30
°
60
°
90
°
120
°
150
°
180
°
210
°
240
°
270°
300
°
330
°
–12–36
0°
1.25 kHz
1.6 kHz
2 kHz
2.5 kHz
30
°
60
°
90
°
120
°
150
°
180
°
210
°
240
°
270°
300
°
330
°
–12–36
0°
3.15 kHz
4 kHz
5 kHz
6.3 kHz
30
°
60°
90
°
120
°
150°
180
°
210
°
240
°
270°
300
°
330°
–12–36
0°
8 kHz
10 kHz
12.5 kHz
16 kHz
30
°
60
°
90
°
120
°
150
°
180
°
210
°
240
°
270
°
300
°
330
°
–12–36
0°
Frequency (Hz)
Attenuation (dB)
20 100 1000 10000 20000
–30
–20
–10
0
10
0 deg
–10 deg
–20 deg
–30 deg
–40 deg
PA281 Vertical Off-Axis Frequency Response (UP)
0 deg
Frequency (Hz)
Attenuation (dB)
20 100 1000 10000 20000
–30
–20
–10
0
10
0 deg
–10 deg
–20 deg
–30 deg
–40 deg
PA281 Vertical Off-Axis Frequency Response (DOWN)
0 deg
PA281
Compact Two-Way Speaker System
O F 6 P A G E S
3
o F 6 PA G ES
Page 4
PA281
Horizontal Polars
200 Hz
250 Hz
315 Hz
400 Hz
60°
30
°
0°
330
°
300
°
270
°
240
°
210
°
180
°
150
°
120
°
–12
–36
90°
500 Hz
630 Hz
800 Hz
1 kHz
60
°
30
°
0°
330
°
300
°
270
°
240
°
210
°
180
°
150
°
120
°
–12
–36
90°
1.25 kHz
1.6 kHz
2 kHz
2.5 kHz
60
°
30°
0°
330
°
300°
270
°
240
°
210
°
180
°
150
°
120
°
–12
–36
90°
3.15 kHz
4 kHz
5 kHz
6.3 kHz
60
°
30
°
0°
330
°
300
°
270
°
240
°
210
°
180
°
150
°
120
°
–12
–36
90°
8 kHz
10 kHz
12.5 kHz
16 kHz
60
°
30
°
0°
330
°
300
°
270
°
240
°
210
°
180
°
150
°
120
°
–12
–36
90°
Frequency (Hz)
Attenuation (dB)
20 100 1000 10000 20000
–30
–20
–10
0
10
0 deg
10 deg
20 deg
30 deg
40 deg
PA281 Horizontal Off-Axis Frequency Response
PA281
Compact Two-Way Speaker System
O F 6 P A G E S
4
o F 6 PA G ES
Page 5
PA281
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
30.31" (770mm)
12.0" (305mm)
5.31" (135mm)
3.15" (80mm)
4.39" (112mm)
12.87" (328mm)
11.08" (281.5mm)
8.23" (209.1mm)
13˚
15˚
5.0" (127mm)
12.66" (321.5mm)
12.66" (321.5mm)
6.3" (160mm)
21.5" (546mm)
2.76" (70mm)
4.33" (110mm)
1.38" (35mm)
12.87" (328mm)
SIDE
REAR
FRONT
TO
P
30.31" (770mm)
Compact Two-Way Speaker System
O F 6 P A G E S
5
o F 6 PA G ES
Page 6
PA281
volume of at least 0.83 cubic feet. The vent shall be tuned to
A full size, detachable, perforated steel grille, nished in
coverage, measured average 800 Hz–16 kHz, 100°
www.mackie.com
+44.1268.571.212, fax +44.1268.570.809, uk@mackie.com
+39.0522.354.111, fax +39.0522.926.208, italy@mackie.com
+33.3.85.46.91.60, fax +33.3.85.46.91.61, france@mackie.com
+49.2572.96042.0, fax +49.2572.96042.10, germany@mackie.com
SPEAKER
Architects’ and Engineers’ Speci cations
PA281
Compact Two-Way Speaker System
(continued Architects’ & Engineers’ Specs)
www.mackie.com
ITALY
O F 6 P A G E S
6
o F 6 PA G ES
Loading...