Hi, I currently use a UA Solo 610, Focusrite ISA One and Presonus Eureka in my studio. These are all capable of different colors and all sound great. However, all my pres are transformer type pres and apparently this adds something to the sound?? Because of this I'm tempted to get a clean/transparent sounding pre and have the possibility of picking up a secondhand Grace M101. From my experience of my pres I would say the Eureka in the most transparent/uncolored sounding pre of the bunch. My question is , would the Grace M101 be a MUCH more transparent/uncolored preamp than what I already own ? Would the Grace be a worthwhile addition to my current pres?