I see You bought JE-1000 clone. Congratulations ! So could You please post Your comparsion between both preamps ?
Yes, I indeed did. I installed it Saturday when it came in the mail.
I can only compare ABQ and JE-1000 clone, never had a MM-04.
Also, I am running it with my EMG ALX P/U, not a J-50BC
ABQ = smaller, easier to install, runs off push/pull pot
JE-1000 = larger, a little harder to install(just more wires to it in general, plus I didn't have the volume direct mounted so I also had to wire that in)
Both = gain boost, little freq. switches, effect gain & give you that wah'ish sound
I will say this though...the ABQ has more bass on tap, but the JE-1000 clone has a better mid/high end tone to it. Once I installed the JE clone I had to pretty much reset my amps eq knobs and my 10-bands eq to make up for the lack of bass and to add in a little bit more highs. The wah'ish effect is a little more dominant with the JE-1000 clone though, which is what I was really after. I mean the ABQ has it, it just isn't as strong.
I am really going to try and get some sound clips of the JE-1000 w/ ALX up so you guys can hear the difference. Just gotta figure out my Tone Port thing I bought.