Hello, anybody out there have an opinion on either a Manley Voxbox or Focusrite 7? I've worked with the Manley Dual before, I loved how it sounded. Since I have a very low register, I was looking for a preamp, that can add that certain sparkle/sizzle to my voice... PLEASE HELP!!! BTW - I currently use a U67, AT 4050, AKG 414EB... and thinking of picking up a Charter Oak SA-538, oh yeah, any feedback on this too?