WinISD results for my daily build

[Lucky4Designs]

Alright, I ran my current setup through WinISD. I was going to get an SA-8, but the day before I was placing my order a friend of mine got a new system and gave me his 12" Polk Audio DB1240 (12-4 in WinISD). It was pretty much brand new, he used it for maybe the full break in period.

I got online to find box specs and since I wanted to go with just a daily SQ setup (plus my lack of space), I decided to go with the sealed which was 0.88 ft^3 after displacement. I do plan on doing a major upgrade in the future, but in the meantime it's just a daily. I made my box to exact specs, and did a simulated run on WinISD. This is the reading I got off of 406w RMS.

Not too shabby for a hand-me-down Polk and a $15 amp!

Here's the sub:

I plan on taking a video of it tomorrow and posting it here. Let me know what you guys think? Also, I'm still trying to learn how to use WinISD, but what kind of numbers do you think I would pull with a 0.7 - 1.0 ft^3 box @ 55 - 60hz and running peak power? (720w) Not daily though of course.