Epiphone pickups seem to not show any resonance peak at all, but only a treble roll off, when measured in the guitars listed below. This makes these pickups somehow mellow, lifeless and muddy compared to Gibson Les Paul humbuckers. The non-resonant behaviour may result from the metal covers of the pickups.
I measured one set of Epiphone Humbuckers without any potentionmeter load (“CH 57” from an Epiphone Dot VS, see below; possibly the same model named “Alnico Classic” in other Epiphones guitars), but even without any load, there was hardly any resonance peak.
As a consequence, even using 500kOhm or no-load pots in your guitar, you won’t get a typical Gibson humbucker resonance sound with the Epiphone pickups measured here. Nevertheless, these humbuckers may be useful for Jazz, Blues etc.
Epiphone “Alnico Classic” Humbuckers
measured in an Epiphone Joe Pass Emperor II
Epiphone “Alnico Classic” Humbuckers
measured in an Epiphone B. B. King Lucille
Epiphone Humbuckers
measured in an Epiphone Les Paul Standard
Epiphone P90 Single-Coils
measured in an Epiphone Casino (please ignore the 420 Hz notch)
Epiphone “57 CH” Humbuckers (from an Epiphone Dot VS)
left: no pots (no load), right: 250kOhms load (two 500kOhm pots)
GuitMod 