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10
A. MASTER VOLUME LEVEL CONTROLS The Left and Right
Master Volume Controls adjust the output volume of the PD250
Plus. The Master controls feature notched position indicators.
For the majority of applications the Passport system has been
balanced to operate with these controls at their 12 o’clock
notched positions. In situations where more volume is required
the master controls can provide an additional 6 dB of gain
when turned to the right of the center position.
Set the system up in the normal manner and adjust levels as
necessary. Raise the master volume controls beyond their 12
o’clock positions only after increasing the individual channel
level controls.
B. STEREO/ DUAL SELECTOR SWITCH
– Allows the PD250
Plus’ power amps to be configured as stereo or “dual-mono”. In
the Stereo mode, the system operates as a traditional stereo
power mixer/ amplifier. In the Dual mode, the channel level
controls set the level for the Main mix (LEFT master volume
control). The Rev/Aux controls set the individual channel levels
for the Monitor (RIGHT master volume control).
When the Dual mode position is selected with the switch,
the Pan and Balance controls become inoperative (you have
selected a mono setting for the output). Additionally, the
internal reverb is only sent to the MAIN speaker output. Reverb
is not available to the MONITOR speaker output. The reverb
level sends for the MAIN mix are also controlled from the
channel REV/AUX channel controls. The overall reverb level to
the MAIN mix is controlled by the Reverb Master Control.
C. MASTER REVERB – Adjusts the amount of reverb signal
level sent to the mix or output. Rotating the knob clockwise
increases the reverb signal sent to the main mix. When the
knob is in its full counterclockwise position, there is no reverb
heard in the mix.
D. SYSTEM EQ
– Adjusts the overall amount of frequency
increase or decrease on the Passport. Rotating the knob
counterclockwise increases the bass frequency response
while simultaneously decreasing the high frequency response.
Likewise, rotating the knob clockwise increases the high
frequency response while simultaneously decreasing the bass
frequency response. When the system EQ control is set at its 12
o'clock notched position, the channel response is “flat” with no
frequencies increased or decreased. To set the System EQ, start
with this control in the 12 o’clock notched position. Simply turn
the control until things sound good!
You will notice that the input jacks and channel controls
are color coded. This is done to easily identify which set of
controls is associated with which input connections.
MIc / lINe INputS
A. MIC INPUT JACK – Plug
your microphone in here.
This three pin XLR balanced
female input connector is
intended for input signals
from low impedance
microphones.
B. LINE INPUT JACK Plug
your instrument in here.
This 1/4" balanced input
jack is suited for use with items having a line level output such
as high impedance microphones, keyboards, drum machines,
outboard effects, etc. It accepts both balanced and unbalanced
cables.
MaSter coNtrol fuNctIoNS