Need some clarifcation and help

[RooTxBeeR]

K, I am going to be getting Either the Lvl 2 or Lvl 3 12's. from the site it says suggested port for the Lvl 2 12 is 1.25cuft. I made a topic with a box design and everyone pretty much said thats bad, best is at 2cuft. I had the topic up for a week now with the intention of figureing out how much space would be best for a Lvl 3 12 since its has a bigger suggested ported size but with no avail. Any help here?

[RickyFriery97]

what will be powering them?

[RooTxBeeR]

at first, a T500.1bdcp, then I would rather go with a T1000.bdcp which would most likely do about 1200-1300 at 1 ohm, but since sonic electronix has a t1000 for $500, and a T1500 for $530, most likely the T1500 in the long run. But ya a T500.1 for a long time

[MrSkippyJ]

i would go with a level 3 for sure on that power (t1500) or even a level 4

[RooTxBeeR]

Only thing is I am stuck with a tiny bit under 5.5cuft gross vol, and right now having a hard time thinking up a design for 2 Lvl 3 12's

[MrSkippyJ]

ooh, i missed where you said 12(s), i was thinking one woofer. go with the 3s, subs would love that amp.

[RooTxBeeR]

Still need to figure out what Cuft for each woofer, also, when you use a subsonic filter, how much lower than your tuneing do you want to tune, because all of the Power CP amps are preset to 28Hz, so what ever the difference is, is what I will tune to. I have exactly 5.47 Cu availible, maybe a bit more. 21.5H x 16.5 D x 33 W. I have a board on my floor thats over 1" think so I could gain a bit more if needed. I can't do a 15" because I can only go 16.5 deep, and don't feel like dealing with that snug of a fit. so 12's are the only thing I can do, and a T1500 at 1ohm can put out 1800 rms, can 2 lvl 3's really take 900 watts daily beaten?

[CJ18]

Level 2 or level 3 12- 1.25-1.5 per sub after sub and Port displacements.

[MrSkippyJ]

Still need to figure out what Cuft for each woofer, also, when you use a subsonic filter, how much lower than your tuneing do you want to tune, because all of the Power CP amps are preset to 28Hz, so what ever the difference is, is what I will tune to. I have exactly 5.47 Cu availible, maybe a bit more. 21.5H x 16.5 D x 33 W. I have a board on my floor thats over 1" think so I could gain a bit more if needed. I can't do a 15" because I can only go 16.5 deep, and don't feel like dealing with that snug of a fit. so 12's are the only thing I can do, and a T1500 at 1ohm can put out 1800 rms, can 2 lvl 3's really take 900 watts daily beaten?

That power should be fine, just make sure it is clean power. My tuning is about 5hz above subsonic (34hz tuning, 29hz subsonic).

[RooTxBeeR]

I already tried that cj in the subwoofer forum got flamed by 3 pro designers, said 2.0cu each sub for the lvl 2 12"