Noise PSDs at various TES states DIB1 DIB2 DIB3 pA pB pC pD pA pB pC pD pA pB pC pD Data taken on 2015 Aug 27 Front-end gain = 1, Output gain setting = 1 DIB1 and DIB3: Rev C.1 (total output gain = 4) DIB2: Rev C (total output gain = 5) 0 charge bias