Hi folks,
surprized on the whole I can recommend this pickup for any instrument that creates low frequencies like bass guitars, extended range guitars and so on ! I even tried its use in single coil mode in 9string guitars: the sound is extremely smooth, from lowest to highest tones, it can be crisp when connected directly to an onboard preamp !
Besides, actively driven it produces the most impressive sound in a bass guitar (5 to 7 strings) I heard in years !
Mike.