I changed my Ibanez RG1527's stock bridge pickup to a D-activator 7 last tuesday. It wasn't as loud as I had hoped, but still a bit louder than my EMG HZ-H4 on my 6-string. I have to admit that I don't have much experience of other pickups, but I definitely like this one.
With the stock pickup, everything below D turned muddy, especially chords. With the D-activator, even my low A sounds clear! And it has enough gain to give me a good death/thrash metal sound with my Valveking, that was something the old pickup couldn't do.
The high notes are too bright for my liking though, but that's no problem because I use the neck-PU for leads anyway
