I been using three different ones...depending on the type of music. The Reddi by A designs and the Fatboy Di by Teegarden. Both are tube but very different from each other. The fatboy' has to me a little more " stank" on it or a little more grawl
In my opinion. Both are awesome. Ya no that pain of loosing your tone by switching from playing with your fingers to thumb back groovin? On both DI's
my friends that issue is gone,gone gone. For me Fatboy for rock and Reddi for
R&B.....for now. And last I like the Tonelux Mp1 preamp which I've had for awhile
Still love it too. Well that's my two cents.