Re: Please explain the difference between cheap pickups and good pickups
We all know the story: Stock pickups from several of the Asian made cheaper line guitars aren't that great. Epiphone comes to mind. Same with some of the Squier and other off-brand stuff. So why do those cheap import pickups sound different than their higher-end counterparts? The construction of a pickup is a pretty simple piece of engineering, so what gives?
Here we go:
Epiphone parts on the left, Gibson and Duncan parts on the right side.
-Epi : fake screws (slotted slugs) made of whatever alloy... Not sure their plating is magnetically transparent. Real screws made of a proper alloy for the expensive PU.
-Epi coil: roughly molded plastic bobbin, which maintains the magnetic poles far from the cheap poly wire. Right side: more delicate butyrate bobbin with PE wire.
-Keeper bar: absent in the Epi PU. Hence the thick fake screws (to compensate the lack of metallic mass).
-Baseplates: nickel silver on the right. The Epi includes a brass baseplate which creates Eddy currents.
-Maple spacer: only on the right.
-Slugs: molded alloy with precisely defined carbon content on the right side only.
-Magnets: thick ceramic bar on the left, alnico 5 on the other side.
Sum up: several missing parts in the Epi PU. Its design is not wrong by itself : brass baseplates or ceramic magnets can be seen in expensive PU's, as well as the absence of keeper bar. That said, the coarse Epi coil is not likely to be found in any expensive PU...
Each of the mentioned parts impacts the tone, of course.
FWIW.