Originally Posted by gimmeagig
That sounds pretty complex. I was asking because I have a 74 jazz bass that is currently loaded with SCN pickups because I don't like the noise that the singles make when soloed. Together that's of course not an issue.
If that new system works well in all positions ( individual pickups only and both on together) it might be a good idea to swap them out for the original pickups that I still have from this bass.
Bad idea. Your SCN pickups ALREADY HAVE dummy coils in them! That's why they are noise free! Plus they sound absolutely amazing. I say that because my MIM Fender had "noiseless" pickups and the tone was awful. Those are typical two coils one for high strings and one for low strings pickups. They did NOT have single coil tone! Sorry.
SCN pickups on the other hand are "stacked coil". that is a single coil pickup on top with a dummy coil underneath. Typically because the dummy is in series it changes the tone, but as far as I'm concerned with SCNs that changed tone is not bad.
I've done some experimenting with dummy coils and I can say that putting a dummy in series (to cancel hum) definitely changes the impedance, inductance and capacitance of the pickup and that can really change the tone.
Active dummy mixing (like Alembic) eliminates all that nonsense, BUT now you've lost the purity of a passive jazz bass. IF you don't care if it's active, that fine, but to me I'd like a passive hum-free system and so far my SCN pickups seem to get closest to that.
I will add that I've heard clips of Nordstrand noisefree pickups that sounded very good but they are not cheap!