i would like to ask for a help from all of u in this forum, actually i have a altec lansing speaker model ATP3, n i rarely use it, so i tought that it will be so useful if i install the speaker into my car...
my quetion is, how to change the input power source from 3 pin 24V ac plug and use the power source from car battery that just only 12v. an if u guys have a schematic diagram it will be so helpful..
According to the operating manual, the speakers require either 120VAC or 240AC depending upon the model you have (you said 24VAC so I assume you have the 240VAC unit). Thus you would need an inverter to generate that power from the 12V car battery. These can be readily purchased.