I can't speak on what frequencies the JE-1000 or MM-04 boost, but I can say that the MM-04 does sound different, to me, than the ABQ. The ABQ has significantly more of that cocked wah sound, especially on the higher strings.So I ordered Edwards Scythe Alexi Laiho signature and I'm currently unsure about the pickup. Maybe planning to put the EMG ALX set with the ABQ booster/eq, or Jackson 50bc with mm-04 booster/eq. They both seem to be copies of Jackson Je-1000, but are pretty different actually when you read their information.
ABQ manual says it can boost frequencies between 1.22–3.33kHz and Alexi settings are 1,38kHz. On the other hand we have mm-04 manual telling it can boost frequencies between 2-5 kHz and Alexi setting are: switches 2 and 4 on.
So this information brings up some questions:
1. Which frequencies does the mm-04 boost when switches 2 and 4 are on? Is it near 1,38kHz(ABQ) or something completely different? Does anyone actually owning mm-04 have any information?
2.Which one is closer to the original? Any information about Alexi's Je-1000 settings or what frequency its boosting?
Also for anyone who's curious: you can totally use the ABQ with other pickups, but EMG use their Quik-Connect clips, so you will need to do some wire splicing in order to make it work with a non-EMG pickup. I've got mine wired to a J50BC and it sounds killer! Also, the ABQ has a lot more gain in the boost than the MM-04. I set both at 50% and the ABQ was much hotter of a signal(perhaps too hot lol.)