I have a Maruszczyk with multi-coil Bassculture/Hotwire "W-buckers" that are supposedly made the same as the original Wal pups. But this bass has a 3 band Noll preamp with each band having a stacked sweep function. Plus it has series/parallel/coil tap switching per pickup. Sounds 'Wal-ish", but not dead on....
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cool bass. If you ever decide to sell it let me know