Speakers after reformat

So I just got this new Toshiba p870/026 laptop running windows 8 and while the speakers where great, loud and crisp, the OS was not. I formatted the disk and installed windows 7 and now I can't help feeling the speakers aren't as loud.
Is this possible? They do work but earlier I wouldn't even dare go past 60% volume now 100% isn't all that loud. If I'm not crazy and this is possible, what do I do?
Thanks.

Laptop specs: http://www.mytoshiba.com.au/products/computers/satellite/p870/psplfa-026001/specifications
 
Go to the driver download site and install the latest audio driver. If that doesnt work, report back.
 
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