Difference b/w JL 1000/1 (original version) vs. 1000/1 v2?

[nonverbal]

hi all,
can you share the difference b/w 1000/1 vs 1000/1 v2 besides the
looks? planning to run the amp for 1 10W7 or 10W6v2

or would 500/1 for 10W7?

Thanks.