Hello everyone. I'm looking to buy a new sonar/GPS. The two I've narrowed it down too are the Lowrance LMS-480 or the Eagle FishElite 480. I know they are made by the same company. The question I have is they both look to be the same. the only difference I can find is the Lowrance has 4000 watts peak to peak power. The Eagle 1500. They both use the same transducer so what will the 4000 do that the 1500 watts won't. I live on the Mississippi River and that's where it will be used 80% of the time. The depths never go past 40 feet. Most the time it's 20 or less. It is muddy water. The Eagle is $100 less. I'm not afraid to spend the extra if it will make the difference. I'm using a Humminbird 300DX? now and it's only good for telling me the depth when I'm not going to fast. Thanks for any help you can give me. Damie