Ok, maybe she would be OK with a clear tight sub instead of our old sloppy Klipsch? The resonance from my Mustang exhaust also hurts her ears, but who knows.
I was trying to keep the whole system under $2k, but am going to see if I can get away without a center and rears. I may later add the rears. So, I think $500 is the most I would want to spend on a sub.