Series or parallel sterling

[Andy23]

I'm finding my sterling sub 4 running hot and I'm thinking of changing it from series to parallel (like the classic Stingray's).

Have any of my fellow low enders done this and if so are there any tips?   

Thanks

[tauzero]

The impedance of the Stingray pickup is quite low, that of each Ray4 coil is more than double. Connecting them in parallel and installing a 2-band clone EQ (Retrovibe Stinger or one of the DIY kit ones) would give a pretty close approximation of the Stingray sound - the pickup and preamp interact far more on the Stingray than on other active basses.