Audio Connections - Alto PBM8.350 UM User Manual

4. CONTROL ELEMENTS
HIGH
This is the treble control. You can use it to get rid of high frequency noises or
to boost the sound of cymbals or the high harmonics of the human voice.
MID
This is the midrange control. It affects most fundamental frequencies of all
musical instruments and human voice. An attentive use of this control will
give you a very wide panorama of sound effects.
LOW
This is the bass control. It is used to boost male voice , kickdrum and bass
guitar. Your system will sound much bigger than what it is.
MON (AUX1) Control
5 1 1
Your PBM8.350 UM has two auxiliary sends which can be used for sending
signals to external or internal effects device or for creating a monitor mix,
these sends are used to adjust the level of respective channel signal sent to
AUX bus, and the adjustable range goes from -
is configured as PRE-FADER, which means that the signal is sent out before
reaching the channel fader. It is used for a stage monitor mix in a live set, or
for a headphone mix in recording application.
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1 1 DSP/FX (AUX2) Control
The AUX2 control is configured as POST -FADER, so the AUX send level will be
affected by channel fader. Via the AUX2 OUT jack, the AUX2 signal can be sent
to an external effects device, furthermore, the AUX2 signal can also be
assigned to internal onboard effect module.
7 PAN Control
1 1
Abbreviation of PANORAMA control for mono and stereo channels. It is used to
determine the amount of channel signal sent to main mix left and right
outputs. Keeping this control in center position, the signal will be positioned in
middle of "stereo field". Turn this control fully counterclockwise, the signal will
be present only on the left of main mix and vice-versa.
Channel LEVEL Control
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1 1
This control is used to adjust the overall level of respective channel. The
adjustable range goes from -
4.2 MASTER SECTION Controls
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to +10dB. The AUX1 control
to +10dB.
6. INSTALLA TION AND CONNECTION
Ok, you have got to this point and you are now in the position to successfully
operate your PBM8.350 UM. However, we advise you to read carefully the following
section to be the real master of your own mix. Not paying attention enough to the
input signal level, to the routing of the signal and the assignment of the signal will
result in unwanted distortion, a corrupt signal or no sound at all. So you should
follow this procedure for every single channel:
Turn down all Input and output controls.
Connect phantom powered microphones before switching on the +48Volt
phantom power switch.
Set the output level of your PBM8.350 UM or the connected power amplifier
at no more than 75%.
Now, set the MONITOR level at no more than 50%. In this way you should
monitor your mix, connecting a pair of headphones or a pair of powered studio
monitor speakers.
Position EQ controls on middle position.
Position panoramic (PAN) control on center position.
Properly increase the input gain for maintaining a good headphone and ideal
dynamic range.
Depending on the actual application, turn slowly the input and output level
controls for obtaining the maximum gain before distortion.
Now repeat the same sequence for all input channels. The main LED meter
could move up into the red section. In this case you can adjust the overall
output level through the MAIN MIX control.

6.1 Audio Connections

You can connect unbalanced equipment to balanced inputs and outputs. Simply
follow these schematics.
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