OK so i have a the JBL Array 4893 sub. They are two 8 ohm subs and I have them wired together on a terminal so they're 4 ohm now. I want to buy a cheap crossover for them. I found this one http://www.amazon.com/Eminence-PX-250-Pass-Crossover/dp/B000BBS5PU/ref=sr_1_1?ie=UTF8&s=electronics&qid=1232663219&sr=8-1
It's the cheapest crossover I could find (if you know of a cheaper way please tell me). This is at 8 ohm. So I would hook this up to the terminal to connect it to the subs. Now my amp is at 4 ohm and i plan on bridging the sub (2 ohm) so this is what it would look like.
amp crossover subs
2 ohm--->8 ohm---->4 ohm
So my questions are: 1. is my math right? 2. will this work? 3. the crossover freq is 250hz, will this change?