BI-AMPLIFIED OPERATION
[columns] [span3]
[/span3][span3]
[/span3][span3]
[/span3][span3]
[/span3][/columns]
[hr]
TRI-AMPLIFIED OPERATION
[columns] [span4]
[/span4][span4]
[/span4][span4]
[/span4][/columns]
[hr]
PASSIVE OPERATION
[columns] [span4]
[/span4][span4]
[/span4][span4]
[/span4][/columns]