TIC GS-10 4-Inch 2 Way 80-Watt Outdoor Speakers, Black (Pair) Buy Now

I got these speakers for pool use, first I connected them using a very good sound player, if you try to raise the volumen, these speakers automatically turn it down without explanation ( probably because the player is too much for them )After that I try with another player and sound that these speakers deliver is so low that it impossible to listen the music, even at the highest volumen of the player. I'm looking for something else to replace them.Get more detail about TIC GS-10 4-Inch 2 Way 80-Watt Outdoor Speakers, Black (Pair).