The Yamaha Pacifica 904M is an offset double-cut strat like guitar like the Yamaha Pacifica 604 but instead was made in Japan and had a compound radius (240mm-400mm) US made Warmoth neck with maple fretboard. It looks like this guitar has two single coil pickups with a humbucker in the bridge position. The bridge position actually contains two coupled single coil pickups making it a total of 4 Alnico V single coils in this guitar. Hence the 4 in the model name "Pacifica 904"M. The tone knob doubles as a (push-push) coil tap. The body of the Yamaha Pacifica 904M has a light ash top and the bridge on this guitar is a Yamaha "Vintage Custom" tremolo.