software

i swapped today the pickups of my hamer chapparal to my favorite emg85/sa/sa set i bought from ebay (for 76$!!!!) and they were made in july 1989. Now i have two other emg85, one that is made in 93 and one in 2004.............i always found that the one made in 2004 had less output and had a slightly different EQ from the 93 made one. So i supposed emg at some time changed something on the pickup or the preamp itself on later years. Well after installing the 89 one i am sure newer emgs ARE actually different. The 89 made one and the 93 do sound the same but the 2004 has the differences i mentioned before..................So i can say i surely prefer the older ones...........of course i have no way of knowing when and what they changed. One more thing.........the old pickups on the hamer were 2 singles with the writting HS3 neck/mid (those are Dimarzios right????nice pickups i liked them) and on the bridge position the pickup turned out to be a Jackson J-90C humbucker...............do you know anything about this pickup????