Upgrade from Rockford P3s

[planet audio 10+ year member]

Sundown Icons???

Yes I got icon 12s for me.

 

[denim 5,000+ posts]

Yes I got icon 12s for me.

Nice choice!

 

[JonOhano]

P3-12's on 1K?
Custom sealed?.. lol
Why not step up and you listed some serious space available.

P3's like anything from simple ported to a higher-order enclosure.
Sealed?.. at least do a 4th in there if you got the space to do so.
Jmo
Anything will be an improvement over sealed... most "custom" boxes are small sealed in my exp anyways.
A low tuned ported enclosure may be the ticket if something crazy seems undoable to you Op.

P3's are versatile, but in small sealed they lack lows imo.

Do you have complete dimensions for the 4th order and do you know what the frequency range is before it drops off