Firstly, I suggest you download and install the latest SoundMAX drivers from the official web page. After that, you can use iTunes to play your songs because it allows you to adjust the volume automatically. To enable this feature, press Ctrl + , or open the Preferences option from the Edit menu and click the Playback tab. Check the Sound Check box and click OK:
In order to control the tone, reverberation and chorus of your songs, I suggest you download and install a utility from Software Informer database. Many of them are free of charge, easy to install and use and can help you to control the volume of your songs.