Cerwin-Vega Professional CVA-28 Operation Manual page 5

BACK PANEL CONTROLS, CONNECTORS AND INDICATORS
A) Power Indicator: Illuminates when the system is powered
on.
B) Limit Indicator: Illuminates when the protection limiter is
active.
C) Protect Indicator: Illuminates when the amp has shut
down to protect its self.
D) Signal Indicator: An audio signal is present at the input.
E) Power, On/Off: Switches system on and off.
F) Voltage Switch: Allows system to be used with
supply voltages of either 110-120 volts or 220- 240 volts.
Warning: Do not plug system into a 220-240
volt circuit while switch is in the 110-120 volt
position. Be sure to use the correct value and
rating fuse for the voltage selected!
G) AC Output: Intended to run power to one or two
additional CVA-28 units. NEVER daisy chain more than
three CVA-28's from a single source!
H) AC Input: Input for attachment of an IEC power cord
I) FUSE: Be sure to use the correct value and rating
fuse for the voltage selected!
J) Level Control: Adjusts the input signal to the amplifi er.
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CERWIN-VEGA! PROFESSIONAL ACTIVE SERIES
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K) Line/Mic: Balanced
supported on both the XLR input connector and the
quarter inch input connector. Allows input to accept
either a line level or a mic level signal. Mic/DI is for a
microphone or instrument direct input. Line is for a line
level output from an audio source such as a mixing board
L) No Sub/Sub: Use the "No Sub" position when a
dedicated subwoofer is not being used. This position
provides more bass for full range use. Use the "Sub"
position when a dedicated subwoofer is used. This
position reduces some low frequency information that
may interfere with your subwoofer frequencies creating a
"muddier" or less-defi ned sound. Experiment with this
control for the best results. Removal of these bass
frequencies also allows the CVA-28 to play louder.
M) Off/Contour: Provides an alternate internal equalizition
circuit that reduces mid range. Setting this switch to the
On position when playing the CVA-28 at high volumes
will reduce mid range frequencies for a more even
response.
N) THRU: This THRU signal bypasses the controls and is a
buffered output of the IN signal. Allows the signal at IN
to be routed to another CVA-28. Note that you must set
up the controls on each CVA-28 independently.
O) IN: Balanced XLR and 1/4 inch TRS connectors accept
signals from balanced or unbalanced line level or Mic
level sources. Signal at IN is bufferred and routed to
Thru.
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and unbalanced signals
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