Meyer Sound CQ-2 用户手册
14
Array Design
Creating an effective array with the CQ requires a
precise understanding of how to combine the coverage
area and SPL of the individual speaker with those of
adjacent speakers. Array design is a trade-off between
increasing on-axis power and creating smooth transitions
between the coverage areas of adjacent speakers.
precise understanding of how to combine the coverage
area and SPL of the individual speaker with those of
adjacent speakers. Array design is a trade-off between
increasing on-axis power and creating smooth transitions
between the coverage areas of adjacent speakers.
As the splay angle (the angle between adjacent cabinet
faces) decreases below the coverage angle of the
individual speaker, the on-axis power increases, but
the coverage overlap between adjacent speakers causes
comb filtering and other frequency response variations.
faces) decreases below the coverage angle of the
individual speaker, the on-axis power increases, but
the coverage overlap between adjacent speakers causes
comb filtering and other frequency response variations.
As the splay angle increases toward the coverage
angle, the on-axis power decreases, but the variations
in frequency response diminish. As the splay angle
increases beyond the coverage angle, noticeable gaps
begin to form in the array’s coverage area.
angle, the on-axis power decreases, but the variations
in frequency response diminish. As the splay angle
increases beyond the coverage angle, noticeable gaps
begin to form in the array’s coverage area.
NOTE: The trapezoidal shape of the CQ does not
represent the horizontal coverage area of the speaker
or the intended splay angle for horizontal arrays. The
20
represent the horizontal coverage area of the speaker
or the intended splay angle for horizontal arrays. The
20
°
angle of the CQ enclosure is narrower than the
minimum recommended splay angle.
A series of outdoor tests was conducted at Meyer Sound
to determine the coverage angle and on-axis SPL for
arrays with one and two horizontal rows of up to four
elements each, at numerous splay angles. The measurements
were conducted at a distance of 8 m with half-space
loading; on-axis SPL values were interpolated from
8 m to 1 m. The coverage angle for the array is the result
of averaging the –6 dB points from 125 Hz to 8 kHz.
to determine the coverage angle and on-axis SPL for
arrays with one and two horizontal rows of up to four
elements each, at numerous splay angles. The measurements
were conducted at a distance of 8 m with half-space
loading; on-axis SPL values were interpolated from
8 m to 1 m. The coverage angle for the array is the result
of averaging the –6 dB points from 125 Hz to 8 kHz.
The horizontal splay angles in the tables below represent
the optimal configurations for narrow and wide coverage
areas; note the different angles for the CQ-1 and CQ-2.
The vertical angles represent the optimal narrow (15
the optimal configurations for narrow and wide coverage
areas; note the different angles for the CQ-1 and CQ-2.
The vertical angles represent the optimal narrow (15
°
),
middle (30
°
), and wide (40
°
) orientations for both the
CQ-1 and CQ-2. The 2@0
°
LT
denotes the long throw
configuration: the two horns are coupled directly
together (top speaker upside down/bottom speaker
upright) to form a single narrow horn.
together (top speaker upside down/bottom speaker
upright) to form a single narrow horn.
The following tables show the SPL and coverage areas
that result from grouping the CQ-1 and CQ-2 in arrays
of up to four units horizontally and two rows vertically.
All splay angles refer to the angle between cabinet
centers. If this information does not address your
application requirements, contact Meyer Sound to
obtain additional information on array design.
that result from grouping the CQ-1 and CQ-2 in arrays
of up to four units horizontally and two rows vertically.
All splay angles refer to the angle between cabinet
centers. If this information does not address your
application requirements, contact Meyer Sound to
obtain additional information on array design.
CQ-1 Array Coverage and Maximum SPL Chart
CQ-2 Array Coverage and Maximum SPL Chart
Number of Horizontal
CQ units @ Angle
1
2 @ 30
°
2 @ 40
°
3 @ 30
°
3 @ 40
°
4 @ 30
°
4 @ 40
°
Coverage Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
Number of Vertical
Rows of CQ @ Angle
1
50
°
40
°
139
70
°
40
°
143
90
°
40
°
142
100
°
40
°
144
130
°
40
°
144
130
°
40
°
145
170
°
40
°
144
2 @ 0
°
(LT)
50
°
20
°
145
70
°
20
°
149
90
°
20
°
148
100
°
20
°
150
130
°
20
°
150
130
°
20
°
151
170
°
20
°
150
2 @ 15
°
50
°
45
°
143
70
°
45
°
147
90
°
45
°
146
100
°
45
°
148
130
°
45
°
148
130
°
45
°
149
170
°
45
°
148
2 @ 30
°
50
°
60
°
142
70
°
60
°
146
90
°
60
°
145
100
°
60
°
147
130
°
60
°
147
130
°
60
°
148
170
°
60
°
147
2 @ 40
°
50
°
80
°
141
70
°
80
°
145
90
°
80
°
144
100
°
80
°
146
130
°
80
°
146
130
°
80
°
147
170
°
80
°
146
Number of Horizontal
CQ units @ Angle
1
2 @ 50
°
2 @ 70
°
3 @ 50
°
3 @ 70
°
4 @ 50
°
4 @ 70
°
Coverage Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
Coverage
Max Peak
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
H
V
dB SPL
Number of Vertical
Rows of CQ @ Angle
1
80
°
40
°
136
100
°
40
°
140
150
°
40
°
139
170
°
40
°
140
220
°
40
°
138
220
°
40
°
141
300
°
40
°
139
2 @ 0
°
(LT)
80
°
20
°
142
100
°
20
°
146
150
°
20
°
145
170
°
20
°
146
220
°
20
°
144
220
°
20
°
147
300
°
20
°
145
2 @ 15
°
80
°
45
°
140
100
°
45
°
144
150
°
45
°
143
170
°
45
°
144
220
°
45
°
142
220
°
45
°
145
300
°
45
°
143
2 @ 30
°
80
°
60
°
139
100
°
60
°
143
150
°
60
°
142
170
°
60
°
143
220
°
60
°
141
220
°
60
°
144
300
°
60
°
142
2 @ 40
°
80
°
80
°
138
100
°
80
°
142
150
°
80
°
141
170
°
80
°
142
220
°
80
°
140
220
°
80
°
143
300
°
80
°
141