If they are stock speakers then you'll probably blow them if you use much of an amp on them at all--I've read quite a few posts about guys who went aftermarket amp and popped the stock speakers within days.
1100 watt sounds high for a 10" sub. I was looking at CDT's specs for my new system and it's 400 watts RMS/800 watts peak for a 12" DVC sub from them.
My last system powered a sealed 12 with 300 watts. Once you cross 5-600 watts or so (for the entire system) you need to start thinking about your battery, capacitors, and alternator because they might not be able to supply the juice even if your amps are capable of taking it.