I think MAJ Meadows SF has a good point. Ceramics work best through Rectifiers. Downtuned the MM could be too much in the bassdepartment. I think a C-Bomb would work well. I read Painkillers are great for downtuned metal too. They have more treble though.
Hey I thank you for that, for that. I do agree that Ceramics are in order. There are three guitarist in the band. They all use Mesa Boogie.
The one who is set on his tone is using a single EMG 81 in a Jackson RR24. He's got a handle on his setup, and for his part in the band, it couldn't be a better sound. I'm not into active pickups myself, but I do say he's got his stuff dialed in to a very thick, massive, and clear tone.
The other guitarists is either going for (in the bridge) an EMG 85, SD Blackouts AHB-1 (Bridge), or the Coldsweat. All of those have less pronounced mids. With those two guitarists catching those frequencies, It would probably be good If the guitarist in question had more mids. That way it covers more of the total band width (all guitars included in this statement), and makes their over all sound full and defined.
He has been using the JB for years, on and off since the early 90's. He likes the general sound, but he needs something that is clearly more detailed, has more bite, and has a quick detailed low end response.
I use to use the JB myself, for a long time. Though I really liked it in my Les Paul, when I started using C#, I found it to be very thin sounding, fizzy, and a bit too loose for what I was doing. I then turned to the Duncan Custom, and from their I ordered a set of Nailbombs (ceramic) after many emails with Tim, and interaction with people on the forum (thanks Nolly). They should be in this week.
Though the MM one of the pickups in question, I do feel it isn't the right one in this situation. I'm basing this on the fact that the other two guitarist are using similar detailed EQ within their pickups. I would be concerned that it may mud up their sound if they all had a similar EQ profile with their pickups.
Its good to know that the MM may not be a good choice for low tunings, I have no experience with any of the BK pickups other than the audio, video, and comments that I have studied. So, it is helpful to me that you folks can lend your experience. I greatly appreciate it. Any more details that can be given is definitely welcomed.