Using XLR imputs, if you cannot use phantom power, I am not sure what would work, but I know the Marantz PMD 661 does have preset db adjustments and with 48V I find it necessary to attenuate by -18db for music recording with condenser mics. Additionally there are adjustments for -12db, -6db, and 0db, so your mics might work with this deck. The Marantz PMD 661 is in a different price category though. It might be easier to find a more "handheld recorder friendly" mic.