Hi all,
I got this laptop (G752VL) from Best Buy a few weeks ago.
I've had a problem with the low audio output and the Sonic Studio software, but I have now found a fix with the drivers that I pulled from Realteks FTP site.
These drivers / software work
7954_PG451_Win10_TH_RS_Win8.1_Win8_Win7_WHQL.zip
You can get this file by following the link below, you will need to enter a username and password to get access.
ftp://ftp3.realtek.com.twftp://ftp3.realtek.com.tw/Realtek/GeneralRelease username: spcust
password: hwwk758z
Once you have the file, unzip / unpack it and run the setup.exe file, reboot the laptop to finish off the install, then reboot again.
You will now have an extra tab to allow you to make changes to the sound output as shown in the pictures I've attached here.
This may work with other G752 laptops as well, feel free to try and see how it works out for you.