But don't use a Hydrowave while using a Livingston... The sounds are out of phase with each other and cancel out. Making the sounds of a hillbilly "noodlin" along the bank and scares every fish away for 100 yards.
But!!! I have heard that a Hydrowave on its highest setting, while castig a Livingston lure, AND playing the "five pound bass" song on the boats 1000watt stereo brings in HUGE bass. Also helps to have the flat bill on your head with the Elton John edition Costas!