+**6db** signifies a specific change in relative [signal](/wiki/Signal) strength. It commonly represents a doubling or halving of voltage, or a four-fold change in [power](/wiki/Power), often used to express gain or loss in systems.
+## See also
+- [Decibel](/wiki/Decibel)
+- [Gain](/wiki/Gain)
+- [Sound](/wiki/Sound)
... 1 more lines