koondog Posted February 19, 2020 Report Share Posted February 19, 2020 Looking to install 4 JL 7.7 speakers with a JL 400/4 amp. Current battery setup is —- 3 batteries . 1 house/crank and 2 for 24v trolling motor. I will have the ability to crank boat using trolling motor batteries in emergency. Do I need to add another house battery for the amp? Quote Link to comment Share on other sites More sharing options...
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