Are NS neck and bridge Bisonics the same pickup?

lungimsam

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...minus the black mounting rings (which are different) and the RWRP of the neck pup, will they sound the same? Anyone know?
 

fronobulax

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On a NS SF II Guild (on their website) says the same thing about both the neck and bridge pickups "Alnico 2 magnet, 6.40K resistance".

They sell different surrounds for neck and bridge. They list both a neck and bridge PU for sale but those include the surrounds.

If there were a difference besides the surrounds that could be measured or could influence sound you'd hope Guild would mention it. They don't but we won't prove anything from what they don't say.

From a logistics standpoint it is cheaper/more efficient to make one pickup that could be used in either position and the choice doesn't get made until it is matched with a bezel.

Dealing with vintage Bisonics - 1970 and earlier - I can recall no one claiming they were different. What did make a difference was where the pole pieces were. If the first letter is the PU location and the second is which end the pole pieces were closest to there are the pairs (NN, BN). (NN, BB), (NB, BN) and (NB, BB) and some sound better than others when both PUs are selected.

I could be easily proven wrong if the spacing between pole pieces is different. :)
 

lungimsam

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Good point! I will measure the pole piece spacings and see if they are the same!! This is for a non Guild bass so the spacing would be important.
 

Minnesota Flats

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Pole piece spacing of both pickups on my NS-SFII seem to be the same. If the "target" bass is non-Guild and you want the strings to be centered over the pole pieces, check the string spacing at the bridge saddles, remembering that it tends to be 17mm on many Guilds as opposed to the more common 19mm found on many other makes.
 

fronobulax

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Check the specs of a Novak BSDS


Three different pole piece spacings based upon which bridge is being used.
 

lungimsam

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I’m finding 10mm spacing of pole pieces on both NS BS-1 bridge and neck pups.
Target bass is 10.5 where the pup lies, but it’s hipshot bridge has spacing adjustment feature on it. So looks like it will work.
Still don't know if the bridge and neck pup sound the same or if they are somehow tuned to their respective positions.
 
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