But be carefull, some 6-string
Dimarzio pups have non-ceramic magnets, but their 7-string counterparts have ceramic magnets. I don't know if that's also the case with
Seymour Duncan pups. I had also read in a review that because of this difference the 7-string versions of some pups don't sound like their 6-string counterparts. I would recommed you to try the pups if possible. Otherwise you may get disapointed.