User’s Manual 4-24
Operating Basics
2. Click on the Jazz button and you will immediately hear how the Jazz 
profile enhances the music output on the speakers.  
3. To disable the selected profile, click on the OFF button.
■ Custom - Profiles will be created when you adjust the Equalizer Bars 
below the preset icons. 
■ Night Mode - An option that boosts vocal clarity while maintaining 
background sound quality. It brings up the volume for subtle sounds like 
whispers while suppressing the volume of loud sounds like explosions. 
Night Mode allows you to hear details in soundtracks of high energy 
sound sources without making the volume louder and potentially 
disturbing others, which is especially useful for late-night viewing. 
Two additional effects are offered on this page that apply to stereo 
speakers only and are disabled for headphones and mono speaker.
■ Phantom Speakers - Gives you a closer-to-live experience when you 
are watching a movie or listening to concert music. If you sit between 
the internal speakers, the sound you hear will appear to be coming from 
sources around you, rather than just from the speakers on the PC.This 
option is ON by default when the Concert profile is selected.  
■ 3D Immersion - Gives you a headphone experience without actually 
wearing one. The effect is particularly useful when you are listening to 
Voice. This option is ON by default if the Voice profile is selected. 
You can adjust the level of the Phantom Speakers and 3D Immersion 
effects from  "None" to "Expanded" by adjusting the Slider Bar under their 
corresponding icons. For Phantom Speakers, your selection will be 
depicted by the position of speakers and the opacity of the glow around the 
speakers and the rays emanating from them. For 3D Immersion, your 
selection will be depicted by a circle around the PC that will get dimmer or 
brighter with the movement of the Slider Bar.
Using The Microphone
You can use the built-in or an external microphone that connects to the 
microphone jack to record monaural sounds into your applications. It can 
also be used to issue voice commands to applications that support such 
functions.(Built-in microphone is provided with some models)
Since your computer has a microphone and speaker, “feedback” may be 
heard under certain conditions. Feedback occurs when sound from the 
speaker is picked up in the microphone and amplified back to the speaker, 
which amplifies it again to the microphone.
This feedback occurs repeatedly and causes a very loud, high-pitched 
noise. It is a common phenomenon that occurs in any sound system when 
the microphone input is output to the speaker (throughput) and the speaker 
volume is too loud or too close to the microphone. You can control 
throughput by adjusting the volume of your speaker or through the Mute 
function in the Master Volume panel. Refer to your Windows documentation 
for details on using the Master Volume panel.