Solved! logitech z533 use only speakers

[visualsuspect]

Hi guys, i want to use only speakers of logitech z533. I found an adaptor to send the sdound from my phone and it worked. The thing is that both of them equals of 30 watt maximum but its to quiet for 30 watt. It the volume from phone is maxed out. I know its not the way that must be used but there's got to be something to get the full watts of them without the connecting to the bass and just to the phone with an adapter.

 

[hang-the-9]

The amp for the speakers is in the subwoofer portion.