Hi Sumit,

Laptops powered by Waves MaxxAudio 4 deliver bigger, better sound a super-wide stereo spread. This technology ensures that each and every device delivers optimal performance. Whether you listen through built-in speakers, external speakers or headphones, MaxxAudio 4 responds in real time, for consistent high-fidelity sound through any reproduction system.

The different presets are defined below and you can choose any one based on what you are using the laptop for:

• MaxxVolume increases volume levels dramatically, improving clarity and increasing the intelligibility of soft sounds at quiet volumes. With expert presets designed by top sound engineers, just set it and forget it—MaxxVolume does the rest.
• MaxxLeveler soothes out volumes, automatically adjusting differences in level for richer performance at all volumes, using two pre-programmed listening modes—Normal, with a wide dynamic range for everyday listening, and Midnight, ideal for those times when you don’t want to disturb others.
• MaxxTreble high frequency enhancement brings out every nuance of music and movies, with crisp, breathtaking detail and unparalleled clarity.
• MaxxDialog is a powerful dialog booster that lets you adjust dialog levels in movies and games, relative to the backgrounds, so you can bring the dialog up front and center—exactly where you want it. Now you can enjoy clear, crisp dialog that doesn’t disappear behind loud music and special effects, without affecting the rest of the audio mix. And if you’re a Skype user, you’ll certainly appreciate the increased detail and definition that MaxxDialog delivers.
• MaxxStereo improves the stereo separation of your laptop speakers by widening the “sweet spot” to create a super-wide stereo spread. That means you get the best seat in the house, every single time. MaxxBass® virtual subwoofer technology uses the science of psycho-acoustics to deliver deep, thundering lows that you can really feel. Unlike traditional bass boost technologies which use EQ and can overpower your system, the patented MaxxBass process analyzes your content to create lower, richer tones with a more natural sound.
• MaxxEQ gives you the power to shape your sound with pinpoint precision. A full spectrum equalizer, MaxxEQ graphic equalization is perfect for all types of content, from streaming media and movies to and music and games.
  Please refer to the following link for more information. http://bit.ly/OlybQ1
  
  Please reply if you have any further questions

movies/movies for all , sometimes i use music/rock-hard for songs, but overall movies pre set /movies  equalizer  sounds best.