This is a replica of the mini humbucker on Gibson Firebird by Duncan, the microphone is Alnico 5, is also found on Fender Telecaster Hot Rod 52, I installed it on my Firebird replacement 495R and 495T micro in ceramics, immediately you feel the leg clean Duncan was more mellow and warmth, with a small drive on in the mind bluesy heavy rock, still it remains clean we keep the definition, scratch n has nothing to do, she finally becomes usable I would ... phew luckily Duncan was there, the microphone is € 89 which puts the kit at 178 € I would do, if there is the SM-2 Ceramic and SM-3 Alnico 5 which is more modern to vintage is the SM-1 must be