Also the tube pre-amp stage in the Dean Markley RM 80 DR is absolutely gorgeous sounding, as corroborated by its intricate tone-shaping in the schematic. My fr

Also the tube pre-amp stage in the Dean Markley RM 80 DR is absolutely gorgeous sounding, as corroborated by its intricate tone-shaping in the schematic. My friend and I use it with keys and synths without even touching the transistor output stage.