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A. LEVEL - Adjusts the volume level of the individual
channel. Rotating the knob clockwise increases the
respective channel’s contribution to the “Main Out”
mix, while rotating it counterclockwise decreases the
volume. Adjust this control after the Passport’s
master output level volume has been set.
B. VIP (CHANNEL 1 ONLY) - The VIP or Vocal
Input Priority control adjusts the level at which the
volume of all other channels are automatically
reduced in favor of the source attached to the
Mic/Line Input 1. This unique feature permits a user
to speak while other inputs (such as background
music) continue at temporarily reduced levels. VIP is
prevolume and is effective regardless of level control
settings. Adjust this control while speaking into a
microphone on channel 1, with other program
material input through another channel. Depending
on the duration and level of the signal being input to
Mic/Line 1 and the position of the control, the VIP
circuit will trigger a reduction in level of all the other
channels. The original levels will be automatically
restored when there is no signal present on channel
1. In typical use the circuit will return normal levels in
about 4 seconds. With the level set at a higher or a
stronger signal, normal levels will be restored after
approximately 6 seconds. The VIP circuit has an
intentionally slow release time which prevents
interruptions through the momentary restoration of
music when a talker pauses for thought or effect.
Care should be taken to avoid the VIP triggering on
sound from the main speakers. At high threshold
settings the microphone may “hear” the main
system speakers and trigger a reduction in level.
When not using the VIP feature, be sure to turn
the control completely counterclockwise to
avoid accidentally triggering the VIP feature and
causing a reduction in program levels.
C. EQ - Adjusts the amount of frequency increase
or decrease in the channel. Rotating the knob
counterclockwise decreases the bass or low
frequency response. Likewise, rotating the knob
clockwise increases the treble or high frequency
response while simultaneously decreasing the bass
or low frequency response. When the tone
controls are set at their notched or straight up
position, the channel response is “flat” with no
frequencies increased or decreased. For close
microphone use, where low frequencies may
become excessive, simply rotate the control to the
left until things sound better. For musical
instruments or other sources where subtle or more
significant boosting of both the high and low
frequencies is desired, simply rotate the control to
the right until the sound achieves the desirable
balance. For each new mix set-up start with this
control in the notched position.
D. REV/AUX - Adjusts the amount of signal sent to
the Reverb processor, and to the Rev/Aux output
jack. Reverb can be used to enhance the sound
quality of any performance where appropriate and
desired. In the full left position the control is
effectively off. Care should be taken to set the
Reverb return master control to a middle position or
above, before adjusting levels from the individual
channels. When the reverb/auxiliary mix is set,
overall levels of reverb can be adjusted at the master
control.
E. PAN - The Pan control features a notched
position indicator and adjusts the perceived
“position” of the mono signal from the input within
the stereo “panorama” created by the two speaker
systems. Full Left or Right rotation of this control
sends the signal to the that channel only, with no
signal sent to the other. Intermediate settings allow
3/4 - 1/4 ratios and so on.
MONO MIC / LINE CONTROL FUNCTIONS
A
BCDE
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Frequency and Response
