Synergy DRECT DUAL CHANNEL ALL-TUBE MODULEDUAL CHANNEL TUBE PREAMP MODULE The Synergy DRECT module meticulously captures the game changing character of this Rev C amplifier by faithfully reproducing the signature girth and articulation that's graced numerous hard rock and metal classics. Adding even more flexibility than the original amp, this module allows you to set each channel to be either Orange or Red. For those craving the powerful tones of Metallica, 311, Linkin Park, Korn,