SNR is a comparison of the amount of signal to the amount of noise such as hiss present in the signal expressed in Decibels. A higher SNR equals a better audio experience. Gigabyte Z68XP-UD3-iSSD Review- Tech Reviews, Firstpost Gigabyte GA-Z68XP-UD3-iSSD - PCMag UK Gigabyte GA-Z68XP-UD3-iSSD Download Gigabyte GA-Z68XP-D3 (rev. 1.0) EZ Smart Response driver for Windows 7 For example, dB, is a high audio specification, as this means the audio signal is dB higher than the level of the noise.[…]