AA Avalanche - Are They Any Good?

I cleaned up the garage today and came across 2 Avalanche 15's. I forgot I even had them. I bought them directly from AA about 3 years ago and only used them for a couple of weeks.(I ended up selling the car they were in)

I'm having a hard time remembering what they were all about and if they are considered a good sub to people in general.

I definitely will not being using them.
1. I have a 350Z and they would not fit.
2. I want to put a single 10 in very soon.

Thanks.Charlie