Alesis ProLinear DSP Reference Manual page 18

2
Operations
There are two buttons that are used in selecting a new
Program:
•
Program Up advances to the next Program. It
also changes the Program of any other speaker on
the same Channel.
•
Program Down selects the previous
Program. It also changes the Program of
any other speaker on the same Channel.
Pressing the Program Up and Program Down buttons at
the same time while in Program mode will take the unit
back to Preset Program 1.
The ProLinear DSP will remember which Program was last
selected when the unit was turned off and recall it when the
unit is turned on again.
Setting the Gain Trim
Within Program Mode you can also change the Gain Trim
setting. This parameter controls the level after the EQ
settings as the signal heads into the speaker's amplifiers. It
will raise or lower the speaker's volume, and will do the
same for every speaker that is set to the same Channel
(see Channel Mode on the next page).
From Program mode, the first press of one of the Volume
Up/Down buttons calls up the Gain Trim parameter. The
screen will look like this:
The Gain Trim adjustment range is from - 18dB to +17 dB.
The changes from -10dB to +10dB are made in 0.1dB
increments, while the changes from -18dB to -10dB and
from +10dB to +17 dB are measured in 1dB increments.
Holding one of the Gain Trim buttons will cause the values
to scroll quickly.
Like the Program number, the Gain Trim setting is also
remembered when the speaker is turned off. When it is
turned on again, this parameter will be set to the selected value
automatically.
16
Gain Trim value
Gain Trim edit indicator
Program Up
Program Down
This is known as the "double-
button reset" trick. Use it to
reset nearly any parameter to
its default value.
Remember: use the rear
panel Input Level control
instead of the Gain Trim to
set the proper volume, as it
will yield optimal signal to
noise performance. Use the
Gain Trim feature only as a
temporary measure.
Gain Trim Up
Gain Trim Down
Remember the "double-
button reset" trick: pressing
the Value Up/Down buttons
at the same time will reset
the Gain Trim value to its
default.