9
Complete Systems
Meyer Speaker Types
The following Meyer speakers are mentioned in the
example applications.
CQ
Self-powered mid-hi speaker
PSW-4
Self-powered subwoofer
650-P
Self-powered subwoofer
The Meyer self-powered speakers listed above have a
loop
connection to send the input signal to another
speaker. Full-range signals can be applied to all Meyer
self-powered subwoofers because they have built-in
active crossovers that filter mid-hi frequencies.
MTS-4 and PSW-4
Combining the PSW-4 with the MTS-4 doubles the low
frequency power of the system because both loudspeakers
contain the same sub and low drivers. Due to the summation
between the PSW-4 and the MTS-4, the system frequency
response exhibits a rise in the range 30–160 Hz. It is
important to emphasize that the speakers are in phase in
this region. This rise can be corrected using the Meyer
CP-10 Parametric Equalizer, if desired.
PSW-4
input
loop
MTS-4
CP-10 EQ
(1 Channel)
Set the MTS-4 and PSW-4 to the same polarity.
LD-1A with Flown MTS-4 and CQ;
650-P on the Floor
This example shows the LD-1A integrating a complete
system of self-powered speakers for a large venue.
Although channels 1, 3, and 5 constitute half of the
system, channels 2, 4, and 6 can be used with identical
connections to create the other half. The upper and
lower MTS-4 arrays and CQ down-fills are flown; the
650-P subwoofers are on the floor.
The CH 1 Mid-Hi and CH 3 outputs drive the upper and
lower MTS-4 arrays, respectively, applying appropriate
levels for speakers directed at different distances. CH 3
is delayed to phase align the upper and lower systems in
the intersecting coverage area.
Since the MTS-4 arrays are driven by full-range signals,
the Lo Cut switches for the CH 1 Mid-Hi and CH 3
outputs should be out. The Array EQ switches should
also be out because the Array EQ filter is designed for the
MSL-4, not the MTS-4.
Since the DS-2P is not included in this system, the DS-2 &
Sub Crossover switch should be out. ¿¿ Polarity for CQ
and MTS-4?. The polarity of the 650-P depends on the
displacement from the flown system.
CH 5 controls the CQ down-fill system. Since the main
system is more powerful than the down-fill system to
project farther into the venue, the main system is audible
in the down-fill’s coverage area. To insure that the
systems combine properly in this area:
• ¿¿ Set the CQ to the opposite polarity to the MTS-4
to phase align the mid-hi frequencies and mini-
mize the MTS-4’s low frequency down-lobe.
• ¿¿ Use the CH 5 Lo Cut filter to eliminate the low
frequency rise caused by the overlap with the 650-
P/MTS-4 systems.
• Delay the down-fill to align with the MTS-4 sys-
tem in their intersecting coverage area.
The entire system should be measured, phase-aligned,
and equalized using the SIM System II Sound Analyzer
and CP-10 Parametric Equalizer.
650-P Subwoofers
CQ Down-fills
MTS-4 Lower System
MTS-4 Upper System
Input
Mid-Hi
Output
Sub
Output
Input
Output
LD-1A
Delay
CP-10 EQ
CH 1
CH 3
Input
Output
CH 5
CP-10 EQ
Ch A
A
B
Ch B
Set the MTS-4 and CQ to the ¿¿¿ the polarity. The polarity
for the 650-P depends on the distance of the measure-
ment position from the flown and subwoofer systems.
