PMA AMPLIFIER SERIES
20
4.4 - Mute On/Off Buttons
Mutes the selected channel. Left-click the button once to engage mute; left-click again to un-
mute. When muted, the button will appear depressed and the text will turn blue. When un-mut-
ed, button text is white.
4.5 - Channel Routing Drop Down List Controls
This drop-down list control allows amp channels to be routed to any one of five possible “sourc-
es”: Channels 1-4 analog audio XLR inputs (on amplifier rear panel), or to the inernal pink noise
generator.
To select a source, left-click on the down arrow at the right edge of the control and a list of these
sources will appear. To select a souce from the list, left-click on the source name. The input
signal for that channel will then be routed to the source selected and the name of the source will
appear in the drop-down control.
4.6 - Channel Loudspeaker Program Drop Down List Controls
This drop down list control allows you to install the loudspeaker-specific DSP programs required
to operate all Pro Audio Technology loudspeaker systems. This includes both multi-amp (bi and
tri-amp) as well as passive crossover models.
To load a loudspeaker program, left-click on the down arrow at the right edge of the control and
a list of all available programs will appear. To select a program from the list, left-click on the pro-
gram name, which will include the loudspeaker model number and inidicate if the program is for
the woofer (“LF”), midrange (“MF”), tweeter (“HF”) or for a passive model (“-P”). The loudspeaker
program will then be loaded into the DSP chip for that channel and the name of the program will
appear in the drop-down control. Subwoofer programs will simply show the subwoofer name.
4.7 - Channel Compensation Filter Drop Down List Controls
This drop down list control allows you to install specially-designed filters to compensate for the
acoustic effect of listening room materials and loudspeaker positons. There are also high and
low pass filters for combining subwoofers and satellite speakers in distributed audio applications.
Please refer to “COMPENSATION FILTERS” section of this manual for more information.
To load a compensation filter, left-click on the down arrow at the right edge of the control and
a list of all available filters will appear. To select a filter from the list, left-click on the filter name,
which will be a description of the filters function (i.e. “80Hz High Pass”), describe a speaker posi-
tion (i.e. “2-surfaces”) or will be the model of a commercially available perforated video screen
or acoustic cloth (i.e. “Stuart Microperf”). The filter will then be loaded into the DSP chip for that
channel and the name of the filter will appear in the drop-down control.
SOFTWARE FEATURES