Just a quick note to say how much I am loving my new Aguilar rig. Tone Hammer 500 into a DB1x15 and a DB 4x10. This is a thing of beauty, power, grace, tone, girth. I'm currently experimenting with a Kirvo and a David Gage Copperhead Realist blended into my Grace Felix pre-amp. I have yet to try out my AMT mic as there seems to be something wrong with it at the moment. But I am very happy with what I am getting so far. I tend to use more of the Gage in the mix and add the Krivo to help with the mids. The Krivo is not my favorite as a stand alone but here's something interesting, it accentuates the mids particularly as you move up the fingerboard which is exactly where the Realist starts to lose punch and clarity. Sure, it could be said that those notes up there can take on a more electric bass sound but it the mix they just pop out so beautifully. I have a couple of passages with arpeggios that are left ringing in that middle register and the added Krivo really gets them up in the mix. I'm really in the midst of a total sound redesign for myself as my needs for volume and presence have really changed touring this new Rhiannon Giddens record. Hannah Mayne, the great luthier, came to the show last night and said she thought the bass sound was excellent and I can count on her to be unsatisfied if the sound wasnt happening...Thank you Aguilar and Felix for really opening up new tone worlds for my musical settings.