Suggestions on whether I should get D1 or D2

[Destram]

So this is the deal:

I'm gonna be running four DC Level 4XL 15s and two Sundown 4500s. At first I'll be running all four on one 4500 until I have the money for the second, at which time I'll run two per amp.

I need to know if it would be better to get D1s or D2s when I buy the subs.

I can run four D1s on the one amp at .5 ohms and then two per amp at 1 ohm or I can get four D2s and run them on one amp at 1 ohm and then two per amp at .5 ohms.

So, which do you guys recommend?

[Destram]

Bump. Anyone at least have an opinion?

[kmalinich]

first.. what's your electrical setup... its gotta be pretty substantial to be pulling 9000wrms @ 1 ohm..let alone whatever amount of watts at .5 ohms

but if you have the electrical to back it up, the sundown should be able to run at .5 ohm.. so D2 i suppose.. especially after impedance rise