mixing all up.ДЄctually i am thinking about an mini-dsp 4x10 HD. I will do more research and think about all the stuff.

I suggest acquiring a adjustable active filter like the Ashley and adjust the level until it seems subjectivity correct.ДЄnywhere from 250-340 Hz is going to work. The concept of bi amping is simple enough.ДO NOT use a passive crossover for the 2245. NFilters follow a mathematical transferfunction denoted by filter poles usually 1-4 poles in analogue filters.ДЎ pole is a 6 db ually a very gentle slope but no good for the 2245.ДЈ pole is a 18 db filter and is better for the 2245.Д¤ pole is 24 db and is steeper slope and can be used for the 2245. Unfortunately l am not in a position to provide details of the 2245 filter right now. The 2122 was specifically designed for the 4345 monitor. TWhen you go off the reservation and mix different schematic for mid and HF we cannot guarantee the outcome but the filter values for the 2123 are correct in the 4344mk11 schematic.ДЄs l recall the 2123 is slightly f sensitive and tthe low end response is different. There much discussion on the 4344 MKII crossover youвЂ™ll have to search the forum on your own as it is spread across multiple threads. There is a lot of information on the differences between the JBL vintage 10вЂќ speakers here,ДЄs they are not considered to be that interchangeable. Most people in the forum donвЂ™t like having the 2245 play this high. The issue would be the crossover point of the 2245 would have to be raised to 340Hz from 290Hz as in the stock 4345 with a 2122. My understanding is that the 4344 MKII crossover will get you the smoothest sound out of the 2123 for this type of application. So i can start to order the parts for the crossover.Д«tw you did a REALLY GREAT job with ur JBLВґs.

I have one more question for my JBL 4345 clones.Д«eacause i have no 2122h i got one 2123h.Д¬an i use this crossover from 4344 MK2 with chassis 2123h and build up the 3145 crossover?:

Jbl 4344 technical manual