Would an IDMAX 12" be any better than an IDMAX 10"? They both have the same wattage. If I buy this sub with dual 4 ohm coils, will I be able to run it bridged at 600 x1 @ 4 ohms with my JBL 600.2 amp?
You'll need a dual 2 ohm sub to run a 4 ohm bridge to that amp. The ID Max 12 will have more SPL, the sound quality is great on both, the 10 is a little tighter and better on higher bass and midbass frequencies.