March 21, 2013, 3:50 PM — Here's how you can raise the speaker volume in Surface RT tablets.
1. Go to Control Panel.
2. Go to Sound.
3. Click on Speakers.
4. Click on Properties.
5. Click on Enhancements.
6. Check the Loudness Equalization option.
7. Apply your changes.
For more, see the original article at the link below.