Meyer Sound PSW-2 ユーザーズマニュアル
3
Introduction
The Meyer PSW-2 self-powered subwoofer contains
independent amplifier and control electronics for two
15” drivers in a compact enclosure. The PSW-2 has the
following acoustical specifications:
independent amplifier and control electronics for two
15” drivers in a compact enclosure. The PSW-2 has the
following acoustical specifications:
Frequency Response
±
4 dB 35 – 120 Hz
Dynamic Range
> 110 dB
Phase Response
±
30
°
50 – 145 Hz
The PSW-2 is identical in size to, and matches well with
the Meyer MSL-4. The PSW-2 also operates efficiently
with the Meyer MTS-4 or CQ™ Series self-powered
speakers, and can be used in any system requiring
additional low frequency power.
the Meyer MSL-4. The PSW-2 also operates efficiently
with the Meyer MTS-4 or CQ™ Series self-powered
speakers, and can be used in any system requiring
additional low frequency power.
The PSW-2’s integrated design improves durability and
reliability, eliminates amplifier racks, and simplifies setup
and installation. The trapezoidal shape facilitates the
creation of speaker arrays that maximize the coverage
area for the size of the array. Rigging hardware is provided
to safely suspend the PSW-2 in elevated installations.
reliability, eliminates amplifier racks, and simplifies setup
and installation. The trapezoidal shape facilitates the
creation of speaker arrays that maximize the coverage
area for the size of the array. Rigging hardware is provided
to safely suspend the PSW-2 in elevated installations.
The PSW-2 can be equipped to operate with the Remote
Monitoring System
Monitoring System
(RMS) network and software
application. RMS displays signal and power levels,
driver and cooling fan status, limiter activity, and
amplifier temperature for all speakers in the network
on a Windows-based PC.
driver and cooling fan status, limiter activity, and
amplifier temperature for all speakers in the network
on a Windows-based PC.
AC Power
When AC power is applied to the PSW-2, the Intelligent
AC
AC
™ supply automatically selects the correct operating
voltage, allowing the PSW-2 to be used internationally
without manually setting voltage switches. The Intelligent
AC supply performs the following protective functions
to compensate for hostile conditions on the AC mains:
without manually setting voltage switches. The Intelligent
AC supply performs the following protective functions
to compensate for hostile conditions on the AC mains:
• suppresses high voltage transients up to several
kilovolts
• filters common mode and deference mode radio
frequencies (EMI)
• sustains operation during low voltage periods
• provides soft-start power-up, which eliminates
high inrush current
The PSW-2 can withstand continuous voltages up to
275 V and allows any combination of voltage to GND
(i.e. Neutral-Hot-GND, Hot-Hot-GND). Continuous
voltages higher than 275 V may damage the unit.
275 V and allows any combination of voltage to GND
(i.e. Neutral-Hot-GND, Hot-Hot-GND). Continuous
voltages higher than 275 V may damage the unit.
The PSW-2 uses a NEMA L6-20P or IEC 309 male power
inlet and satisfies UL, CSA, and EC safety standards.
inlet and satisfies UL, CSA, and EC safety standards.
Voltage Requirements
The PSW-2 operates safely and without audio disconti-
nuity if the AC voltage stays within either of two operating
windows: 85–134 V or 165–264 V, at 50 or 60 Hz. After
applying AC power, the proper operating voltage is
automatically selected, but the system is muted. During
the next three seconds, the primary fan turns on, the
main power supply slowly ramps on, the green Active
LED on the user panel illuminates, and the system is
enabled to pass audio signals.
nuity if the AC voltage stays within either of two operating
windows: 85–134 V or 165–264 V, at 50 or 60 Hz. After
applying AC power, the proper operating voltage is
automatically selected, but the system is muted. During
the next three seconds, the primary fan turns on, the
main power supply slowly ramps on, the green Active
LED on the user panel illuminates, and the system is
enabled to pass audio signals.
TROUBLESHOOTING NOTE: If the Active LED does
not illuminate or the system does not respond to audio
input after ten seconds, remove AC power. Electronics
technicians with access to a test bench can contact
Meyer Sound to receive The Meyer Sound Self-Powered
Series MP-2 and MP-4 Field Verification Procedure
(part # 17.022.066.01). This service document contains a
series of tests to verify that the power supply and ampli-
fier are functioning properly. Other users should contact
Meyer Sound or an authorized service center.
not illuminate or the system does not respond to audio
input after ten seconds, remove AC power. Electronics
technicians with access to a test bench can contact
Meyer Sound to receive The Meyer Sound Self-Powered
Series MP-2 and MP-4 Field Verification Procedure
(part # 17.022.066.01). This service document contains a
series of tests to verify that the power supply and ampli-
fier are functioning properly. Other users should contact
Meyer Sound or an authorized service center.
If the voltage decreases below the lower bound of either
operating range (brown-out), the supply uses stored
energy to continue functioning briefly. The unit turns off
if the voltage does not increase above the threshold
before the storage circuits are depleted. The time that the
PSW-2 continues to operate during brown-out depends
on how low the voltage drops and the audio source level
during this period.
operating range (brown-out), the supply uses stored
energy to continue functioning briefly. The unit turns off
if the voltage does not increase above the threshold
before the storage circuits are depleted. The time that the
PSW-2 continues to operate during brown-out depends
on how low the voltage drops and the audio source level
during this period.
If the voltage fluctuates within either operating range,
automatic tap selection stabilizes the internal operating
voltage. This tap selection is instantaneous and there are
no audible artifacts. If the voltage increases above the
upper bound of either range, the power supply turns off
rapidly, preventing damage to the unit.
automatic tap selection stabilizes the internal operating
voltage. This tap selection is instantaneous and there are
no audible artifacts. If the voltage increases above the
upper bound of either range, the power supply turns off
rapidly, preventing damage to the unit.
If the PSW-2 shuts down due to either low or high voltage,
the power supply automatically turns on after three
seconds if the voltage has returned to either normal
operating range. If the PSW-2 does not turn back on after
ten seconds, remove AC power and refer to the TROUBLE-
SHOOTING NOTE above.
the power supply automatically turns on after three
seconds if the voltage has returned to either normal
operating range. If the PSW-2 does not turn back on after
ten seconds, remove AC power and refer to the TROUBLE-
SHOOTING NOTE above.
NOTE: We recommend that the supply be operated at
least a few volts away from the upper and lower bounds
of the operating windows to avoid brown-out and
possible shut-down.
least a few volts away from the upper and lower bounds
of the operating windows to avoid brown-out and
possible shut-down.