Let’s hypothesize that you love the sound of Tosin Abasi’s guitar, but 8 strings is one too many for you. Still, you need that tone. I hear you. So do DiMarzio. And they have a solution for you.
DiMarzio have just released a revised Ionizer pickup, tweaked for 7-string guitars. Besides the obvious size difference, the frequency response has been modified for extra highs and lows on neck, and extra high end on the bridge as well. For more info head to DiMarzio’s website.