The Toshiba netbooks come with pretty dismal sounding internal speakers and the reviews have pointed that out. There is a way to significantly increase the overall volume and to control the equalization of the sound coming from the speakers. I found a solution in the audio section on the Toshiba Laptop Forums board (the thread was about a different Toshiba latop, but the key is that the netbooks use the RealTek driver). So I also cross posted that in the netbook section on those forums. Here it is:
"If your laptop uses the Realtek HD Audio drivers than chances are the driver is not configured property. These directions are for Windows 7, other operating systems may require a slightly different set of steps. Before trying the steps below, ensure nothing is plugged into the headset audio jack, the volume slider for the speakers are at 100%, the speakers are not muted, and any audio sliders/volume levels in the application (which is playing the audio) are also set to 100%.
[You shouldn't need to do this] First, either download and install the latest Toshiba audio drivers for your laptop via the Toshiba Support web site, or download and install the latest Realtek HD Audio drivers from the Realtek website.
Second, once the audio drivers have been updated, enable "Loudness Equalization" on either the Start --> Control Panel --> Hardware and Sound --> Realtek HD Audio Manager --> Sound Effects tab, then click OK to save the setting change. Or on the Start --> Control Panel --> Hardware and Sound --> Sound --> Speaker Properties (select Speakers then the Properties button) --> Enhancements tab, scroll down the list of sound effects to enable "Loudness Equalization" then select the OK button to save the setting changes.
Once the Realtek drivers have been updated and the "Loudness Equalization" has been enabled the system sound audio level is much louder, however the DVD and Audio CD audio levels might continue to be low for some users. Some find that setting the Equalizer, found under the Realtek HD Audio Manager Sound Effects tab or on the Speaker Enhancement tab, to "Powerful" seems to help with the sound levels.
Hope that this helps you.